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TRANSCRIPT
Technical
Information
Profiled sheets–safety gratings from Graepel
All our know-how for safety underfoot.
Technical data for designers,
planners, architects and builders.
The complete produc t range
2
P roduc t review …
Contents Page
Product review 2/3
Agents 4
Test reports 5
Technical advantages 6
Types of load 7
Stabil S 8/9
Stabil 10/11
Steg 12/13
Round S 14/15
Round N 16/17
Round 18/19
Round K 20/21
Diamond/Cone 22/23
Rubber stud 24/25
Weights 26
Tolerances 27
Steps for spiral stairways 28
Safety rungs for ladders 29
Steps 30
Fastening technology 31
Graepel-Stabil S
(pages 8/9)Extreme and uncompromising in anti-slipeffect, displacement space and drainage;extra-high load-bearing capacity with sub-stantial cost advantages in steel construction.Elements up to 800 mm in width and 6,000 mm in length.
Graepel-Stabil
(pages 10/11)The safety grating which has become a clas-sic, for universal use on floor surfaces, walk-ways and stairs and in steel construction.Elements up to 480 mm in width and 12,000 mm in length, hot-dip galvanised up to 6,000 mm.
Graepel-Steg
(pages 12/13)This grating is distinguished by its practicaldesign and high load-bearing capacity. It isespecially recommended for large floor areasin industrial production plants.
Graepel-Round S
(pages 14/15)A universal grating for use on floor surfacesand stairways. With good anti-slip effect,adequate displacement space and good drain-age. Elements up to 480 mm in width and12,000 mm in length, hot-dip galvanised upto 6,000 mm.
Graepel-Round N
(pages 16/17)
This newly developed grating is a combin-
ation of circular perforation and conical
stamping, with drainage effect. Suitable for
barefoot traffic indoors and outdoors.
Zertifiziert nachISO 9002: 1994
3
Graepel-Round
(pages 18/19)A ”round” grating with good anti-slip effect, adequate displacement space and drainagewhich is used mainly for pre-assembledcomponents such as scaffolding planks, step-boards and ladders for trucks and industrialvehicles.
Graepel-Round K
(pages 20/21)An open safety grating which is particularlysuitable for pedestrian areas but also forindustrial uses such as canteen kitchens,slaughterhouses, etc.
Graepel-Diamond and Graepel-Cone
(pages 22/23)These two gratings with closed surfaces areused in industrial and public areas wheretechnical utility has to meet certain architec-tural requirements, where on the one hand a certain anti-skid effect and displacementspace are required, and on the other, wherethe view from one level to another has to bescreened, and nothing should drop through,and where finer (non-industrial) shoes areworn.
Graepel-Rubber Stud
(pages 24/25)A Graepel safety grating with rubber studs forsound damping. Its high anti-slip propertiesand attractive appearance make this grating apopular choice for stairs and pathways inmodern inner cities as well as for industrialuse.
4
Agencies in Germany Agencies in Europe
Tes t our ski l l
Contact us directly or through our agent in your area.
We will be pleased to advise you in all questions involving
perforated and shaped sheet metal.
N
S
FIN
I
NL
GB
B
L
A
CH
FL
Thomas Redl Fon (0 22 59) 25 85Werksvertretung Fax (0 22 59) 8 70 59Anningergasse 4 Mobil 06-76 515 20 53A-2482 Münchendorf [email protected]
W. Eckold AG Fon (0 81) 3 54 12 50Zubehör für Nutzfahrzeuge Fax (0 81) 3 54 12 51Rheinstraße [email protected] Trimmis
OY Sandman-Nupnau AB Fon (09) 35 17 11Hiekkakiventie 7 Fax (09) 3 87 76 11FIN-00710 Helsinki [email protected]
DKTandebaek ApS Fon (07) 5 89 58 00Ørumvej 60 Fax (07) 5 89 60 33DK-8721 Daugård [email protected]
Graepel Italiana S.P.A Fon (03 75) 22 01 01Via Fondi, 13 Fax (03 75) 22 02 62I-46018 Sabbioneta (MN) [email protected]
Graepel Perforators Ltd. Fon (01925) 22 97 95Unit 5, Burtonwood Industrial Fax (01925) 22 80 89Centre [email protected] Lane, Burtonwood,Warrington, WA5 4HX, Great Britain
IRL
Graepel Perforators Fon (0 21) 4 77 21 05and Weavers Ltd. Fax (0 21) 4 77 20 05Barrack Green, Kinsale, Co. Cork, [email protected]
Siviløkonom Jostein Alhaug Fon (06 71) 4 00 14Elgefaret 76 Fax (06 71) 4 73 75N-1347 Hosle Mobil 90 05 93 46
T. Thorin AB Fon (03 01) 4 18 75Industriehuset Fax (03 01) 4 18 70S-43064 Hällingsjö [email protected]
TR
Zafer Eraslan Fon (02 16) 5 27 11 46Inönü Caddesi 59A/51 Fax (02 16) 5 27 06 89EKE A Blok Mobil 0532 232 15 60Erenköy-Kozyatagi-Istanbul, Turkey [email protected]
VOF Technisch Buro Koehein Fon (0 33) 2 77 25 94Postbus 66 Fax (0 33) 2 77 32 74NL-3925 ZH Scherpenzeel/Gld. Mobil 06-20 36 30 64graepel@koehein-tech-bur.demon.nlwww.koehein-tech.bur.demon.nlShipping address: Lindenlaan 28, 3925 JC Scherpenzeel/Gld.
E
WAKÜ Escaleras, S.L Fon (093) 8964766Mare de Déu de Montserrat, 61,2°,2a Fax (093) 8 85 47 67E-08810 Sant Pere de Ribes (Barcelona)
F
PL
PHU Graepel Leszek Muchajer Fon (0095) 7 289127Ul. Witnicka 3 Fax (0095) 7 289127PL-66-400 Grozow Wlkp. Mobil 06 04 98 31 26
SLOMINS No. 1 d. o.o. Fon (03) 8 98 56 50Cesta Simona Blatnika 18 Fax (03) 8 98 56 62SLO 3320 Velenje [email protected]
Eskavel Fon (03 88) 74 74 7811, rue de la Forêt Fax (03 88) 74 08 84F-67230 Hüttenheim [email protected]
Regions sorted
by postcode
Dipl.-Ing. Jürgen Heide VDI Fon 04 31/58 83 84
Industrievertretungen Fax 04 31/58 84 83
Eschenkamp 25 Mobil 01 73/3 93 36 13
24119 Kronshagen [email protected]
Dieter Baarck Fon 0 38 74/2 80 64
Werksvertretungen Fax 0 38 74/4 61 08
Wöbbeliner Str. 4 Mobil 01 73/2 02 63 98
19288 Ludwigslust [email protected]
Heinz Böckmann Fon 0 54 32/35 66
Werksvertretungen Fax 0 54 32/46 78
Postfach 11 20 Mobil 01 71/7 79 31 41
49618 Löningen Auto 01 70/2 73 58 38
Ludwig Wicharz Fon 0 22 44/21 00
Werksvertretungen Fax 0 22 44/8 12 65
Dornhecke 13 Mobil 01 71/7 53 28 81
53639 Königswinter Mobil 01 71/7 49 68 01
Mobil 01 71/2 73 86 01
Rolf Müller Fon 03 49 06/2 09 21
Industrievertretungen Fax 03 49 06/2 09 32
Wittenberger Straße 57 Mobil 01 71/9 98 24 87
06779 Raguhn [email protected]
Gerald Koitzsch Fon 0 34 94/3 28 76
Werksvertretung Fax 0 34 94/3 28 76
Straße der Chemiearbeiter 21 Mobil 01 71/9 98 24 88
06766 Wolfen [email protected]
Matthias Hermann Fon 03 49 06/2 11 07
Industrievertretungen Fax 03 49 06/2 11 08
Neue Reihe 18 Mobil 01 71/6 83 30 71
06779 Raguhn [email protected]
Richter Fon 0 70 44/90 42 40
Industrieformteile Fax 0 70 44/90 42 41
Mönsheimer Straße 20 Mobil 01 72/7 12 25 98
71299 Wimsheim [email protected]
E. Uta Meißner Fon 0 91 83/75 35
Industrievertretungen Fax 0 91 83/30 89
Rosenstraße 12 Mobil 01 71/2 17 31 20
90592 Schwarzenbruck/ [email protected]
Lindelburg
Robert Wawacek Fon 0 81 42/28 44 04
Technische Lösungen Fax 0 81 42/28 44 05
Kemeterstraße 7a Mobil 01 71/8 21 75 51
82140 Olching [email protected]
24, 23000–23829,
25500–25999
10, 13, 16–19,
23830–23999
20–22, 25300–
25499, 26–28,
30–33,
37000–37199,
37540–37999,
48, 49
34–36, 40–42,
44–47, 5, 60–67
06350–06509,
06730–06999,
14200–14999,
29, 37500–37539,
38, 39
06000–06349,
06510–06729, 07,
37200–37499, 98,
99
01–04, 08, 09, 12,
14000–14199, 15
68, 69, 7, 88, 89
90–97
80–87
5
Graepel
For the products
listed below we are
entitled to use the
BG symbol
Anti-skid
rating group
R*
Displacement space
rating group
V*A - BIA
Muster
Cer t i f ied safety
* A ball ≥ 15 mm dia. does not pass through the grating.
** R 11 is by a high of the cone of 1,7 mm possible.
Profile Material Surface quality Anti-slip Displacement
rating
Round K* DD11 (StW 22) hot-dip galvanised R 11 V 10
Round S* DD11 (StW 22) hot-dip galvanised R 11 V 10
EN AW 5754 (AlMg3) R 13 V 10
stainless steel R12 R 13 V 10
Round* DD11 (StW 22) hot-dip galvanised R 11 V 10
Round N 08* DD11 (StW 22) raw R 11 V 10
DD11 (StW 22) hot-dip galvanised R 10 V 10
EN AW 5754 (AlMg3) R 10 V 10
stainless steel R 11 V 10
Round N 12* DD11 (StW 22) raw R 11 V 10
DD11 (StW 22) hot-dip galvanised R 10 V 10
EN AW 5754 (AlMg3) R 11 V 10
stainless steel R 11 V 10
Stabil* DD11 (StW 22) hot-dip galvanised R 11 V 10
EN AW 5754 (AlMg3) R 13 V 10
stainless steel R 13 V 10
Steg DD11 (StW 22) hot-dip galvanised R 11 V 10
Diamond DD11 (StW 22) coil galvanised R 9 V 10
Cone DD11 (StW 22) coil galvanised R 10 V 8
DD11 (StW 22) hot-dip galvanised R 10 V 8
EN AW 5754 (AlMg3) R 10 V 10
stainless steel** R 10 V 8
Ladder rung LO/6* stainless steel 1.4571 R 13 V 10
1. RegulationsDIN 1055 part 3: design loads for
buildings; live loads
DIN 1072: road bridges and footbridges;
design loads
DIN EN ISO 14122 part 1: safety of machinery
—permanent means of access to machinery—
part 1: choice of fixed means of access between
two levels
DIN EN ISO 14122 part 2: safety of machinery
—permanent means of access to machinery—
part 2: working platforms and walkways
DIN EN ISO 14122 part 3: safety of machinery
—permanent means of access to machinery—
part 3: stairs, stepladders and guard rails
Code of practice ZH1/571: for floors in industrial
buildings and work areas with high risk of slipping
Code of practice ZH1/196: steel gratings; April
1992 edition
2. Test reports and studies• BIA test reports
– 199823641/3210 – 199823645/3210
from 03.11.1998
– 199823647/3210 from 03.11.1998
– 199823649/3210 – 199823651/3210
from 03.11.1998
– 199824708/3210 – 199824709/3210
from 16.12.1998
– 200020154/3210 from 24.02.2000
– 200123843/3210 – 20013844/3210
from 05.10.2001
– 200124659/3210 – 200124664/3210
from 03.01.2002
– 200220028/3210 – 2000220029/3210
from 20.02.2002
• Association of Property Insurers (VdS) Use of Graepel-Stabil in buildings with sprinkler
protection; 21.03.1986
• Det Norske VeritasUse of Graepel-Stabil in buildings with sprinkler
protection; 09.07.1986
• Total Walther, VF-Bericht 700Tests on water distribution and activation behav-
iour of sprinklers with Graepel safety gratings;
April 1986
Copies of these reports are available on request.
BG-(BIA-)testThe Institute for Safety at Work of the German
Employers’ Liability Insurance Association (BIA) tests
the anti-slip effect (R-) of the gratings according to
Code of Practice ZH1/571 and examines the displace-
ment space (V-).
Verification of suitability for welding– Major suitability verification to DIN 18800 part 7,
section 6.2
– DIN 4113: verification of suitability for welding of
load-bearing aluminium components
– Certificate verifying the suitability for welding of
rail-borne vehicles and vehicle components to
DIN 6700 part 2
– DIN EN 729 part 2
6
H
L
The lateral system perforation simplifies installation on site
3
1 4
7658
2
Technica l advantages
1 Good anti-skid properties through
high-grip surfaces. The anti-skid effect is tested
by BIA. See table on page 5.
2 Lengths up to 6,000 and 12,000 mm:
this permits a wide bearing span and reduces the
cost of steel structures.
3 Lumped loads act directly on the surface. To
allow these concentrated loads to be supported,
a joint bearing width (bm) of the grating surface
forms in the lengthwise direction, which is related
to the width of the grating B and the size of the
load surface.
The equation is: bm = a + 0.625 x B.
(B = grating width: a = length of load surface in lengthwise
direction of grating)
4 The unperforated edge assumes the func-
tion of an upper boom for the static cross-section.
5 The inward edge fold forms the lower boom
for the static cross-section.
6 The material thickness (2.0/2.5/3.0/3.5 mm) is
taken into account in calculating the load-bearing
capacity.
7 Widths depending on surface
(see standard dimensions).
8 The load-bearing height (H)
(40/50/75/100 mm), e.g. increasing from 40 to 50
or from 50 to 75 mm results in a greater increase in
load-bearing capacity than increasing the material
thickness from 2.0 to 3.0 mm (which also raises
the amount of material required and the dead
weight of the gratings by 50%).
A ”light” element, on the other hand, increases
the useful load within the static framework as a
whole and simplifies handling and installation.
Notes:
All drawing dimensions are in mm:
H = height D = sheet thickness
L = length b = unperforated edge
B = width
The dimensions stated may vary slightly for
technical reasons.
Length divider
7
Remarks on the tables
on the following pages
F
B
H
L
b
Conversion of table value F to unit kN/m2
Q = 106 x F
Grating width B x bearing length L
where: Load F [in kN]
Grating width B [in mm]
Bearing length L [in mm]
Evenly distributed load Q [in kN/m2]
Example calculation: (dimensions in mm)
Material: StW 22 Sheet thickness: D = 2.5
Fold height: H = 40 Bearing length: L = 1,250
Load according to table: F = 2.52 kN
Grating width B = 240 mm
Q = 106 x 2.52 = 8.40 kN/m2
240 x 1,250
Continuous support (load increase)
If the grating rests on several supports, the max-
imum load can be increased by approx. 37%.
It is assumed that the load area acts over the
whole grating width B. If the load surface is not
applied over the whole width, the figures given in
the table ”Lump load” must not be exceeded.
Load increase
1. If the grating rests on several supports (con-
tinuous support), the maximum single load per
grating can be increased by 23%.
2. If three gratings are bolted together in such a
way that the load is exerted on the centre
grating only, the maximum load figures in the
table ”Single load” may be doubled.
Lump loads are the most frequently occurring type
of load. They are caused by small contact surfaces
(e.g. the human foot or the wheel of a vehicle)
acting on the centre of the grating width. The size
of the loads and load-application area can be
determined according to DIN 1055, sheet 3 or
DIN 1072.
Loads with small contact surfaces act directly on
the surface profiling of the grating. To allow these
locally exerted loads to be supported, a joint bear-
ing width of the grating surface forms in the
lengthwise direction which is related to the width
of the grating B and the size of the load surface.
The equation is: bm = a2 + 0.625 x B.
Where a2 is the length of load surface in length-
wise direction of grating, and bm the joint
bearing width of the grating surface.
The static cross-sectional data are also contained in theunperforated edge (b).
Evenly
distributed
load
F
200
B
H
L
F
B
bm a2
a1
Single load
Lumped load
The profiled sheet gratings are calculated for the
elastic properties of the material. Dimensioning is
either against the yield strength of the material,
i.e. against the maximum permissible stress, or
against a maximum deflection.
In the load tables, the elastic deflection of the
support ”profiled sheet grating” is limited to
L/200. L is the bearing span. The deflection is
limited to a figure of 10 mm.
If higher deflection values are permitted, the load
tables must be recalculated.
In the case of adjacent gratings, the deflection of
the individual loaded grating must not be greater
than 4 mm. If the deflection is greater than
4 mm, the gratings must be bolted together in
such a way that the difference between the
deflection of the loaded grating and that of its
neighbours is less than 4 mm. The following types
of load may occur:
a) Evenly distributed load in kN/m2 acting
vertically on the surface of the grating.
b) Vertically acting single load in kN which is
exerted over the entire width of the grating
and may be distributed over an area of
B x 0.2 m. The single load must be exerted in
the most unfavourable position.
c) With floors supporting traffic, single loads occur
(e.g. wheel pressure). The size of the loads and
the load-application area are given in
DIN 1055, sheet 3 or DIN 1072.
Load types
8
Graepel-Stabi l S
Materials and surface qualities DD11 to DIN ISO EN 10111 (STW 22)
- Raw, untreated
- Hot-dip galvanised to DIN ISO EN 1461 in our own
galvanising shop
- Other surface qualities available on request
DX51 D to DIN EN 10 142
(Hot-dip galvanised)
Stainless steel
- Raw, untreated
- Other surface qualities available on request
EN AW 5754 to DIN ISO EN 485-2 (AlMg3)
- Raw, untreated
- Other surface qualities available on request
Special types1. All Graepel safety gratings are also available as
flat blanks without folded edges.
2. We also produce non-standard sizes (H/L/B/D)
for special applications (e.g. scaffolding).
3. Gratings with unperforated edges or surfaces
on one or both front surfaces can also be
supplied.
4. Gratings are also available in other materials.
Consult us. We will be pleased to advise you.
Steel, raw 2.5/3/3.5 mmSteel, hot-dip and coil galvanised 2.5/3/3.5 mmStainless steel 2 mmAluminium 2.5/3 mm
Lengths (L) 6,000 mmto length divider* 50 mm
Widths (B)
- Steel/Aluminium 300/400/500/600/700/800 mm
- Stainless steel 300 mm
Width divider* 100 mm
Heights (H) 50/75/100 mm
Dim
ensi
ons
Mate
rial
sheet
thic
kness
Standard dimensions Graepel-Stabil S
* Grating length and width: please order standard dimensions which are divisible by the
dividers mentioned in each case.
Ø = 11x15
L50
HL 50
25
30
75 50 50
20
approx. 25
B
H
Graepel-Stabil SSafety at work, even under extreme conditions,
combined with design advantages in steel struc-
tures:
• Extremely high anti-skid effect, high displace-
ment space and maximum drainage through
75 mm wide openings
• Extra-high load-bearing capacity, cost benefits
in steel construction
• Width up to 800 mm–ideal for large surfaces
and platforms
The lateral system perforation simplifies
installation.
The load-bearing upward profiling: 20 mm
which as ”profile” allows such high widths and
lump loading in one piece.
Convex ”olives” (punched upwards) ensure a
high non-slip effect and create maximum dis-
placement space. Concave ”olives” (punched
downwards) ensure maximum drainage and dis-
placement space.
Free perforated cross-section for
standard widths approx. 43%
9
Graepel-Stabi l SDescription
Technical data
Load values
The safety grating Graepel-Stabil S obtains its high load-bearing
capacity from the strong surface profiling which has a height of
20 mm. Depending on grating width (B), sheet thickness (D), load
surface (a1 x a2) and material, a factor of 10 and higher may result.
Example:
• Grating width 600 mm
• Sheet thickness 2.5 mm
• Load area 200 x 200 mm
• Material StW 22
Lump load Maximum possible lump load F [in kN]
(The figures apply for DD11—StW 22)
Grating width B Load area 200 x 200 mm
[mm] Sheet thickness [mm]
2.5 3.0 3.5
300 7.88 9.07 10.13
400 6.10 7.02 7.84
500 5.21 6.00 6.70
600 4.68 5.39 6.01
700 4.32 4.98 5.55
800 4.07 4.68 5.23
Maximum lump load F (in kN)
Grating with no Grating with Safety grating
surface profiling round perforation* Graepel-Stabil*
H
x
x1B
Fold Sheet Moment Minimumheight thickness of inertia moment
of resistanceH D Jx
[mm] [mm] [mm4] Wx [mm3]
2.5 138 485. 4 842.
50 3.0 160 665. 5 617.
3.5 181 200. 6 333.
2.5 379 850. 9 106.
75 3.0 444 615. 10 656.
3.5 505 930. 12 122.
2.5 788 930. 14 450.
100 3.0 927 945. 16 990.
3.5 1061080. 19 426.
Single load Load F [in kN] for single load
(The figures apply for one single grating)
Support length L/mm
500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
7.118 4.380 3.163 2.476 2.034 1.726 1.498 1.324 1.186 1.074 0.982
8.257 5.081 3.670 2.872 2.359 2.002 1.738 1.536 1.376 1.246 1.139
9.310 5.729 4.138 3.238 2.660 2.257 1.960 1.732 1.552 1.405 1.284
5.326 3.278 2.367 1.853 1.522 1.291 1.121 0.991
6.179 3.802 2.746 2.149 1.765 1.498 1.301 1.150 1.030 0.933
6.966 4.287 3.096 2.423 1.990 1.689 1.467 1.296 1.161 1.052 0.961
13.386 8.237 5.949 4.656 3.825 3.245 2.818 2.490 2.231 2.021 1.846
15.664 9.640 6.962 5.448 4.476 3.797 3.298 2.914 2.611 2.364 2.161
17.819 10.966 7.920 6.198 5.091 4.320 3.751 3.315 2.970 2.690 2.458
10.017 6.164 4.452 3.484 2.862 2.428 2.109 1.864 1.669 1.512 1.382
11.722 7.213 5.210 4.077 3.349 2.842 2.468 2.181 1.954 1.769 1.617
13.334 8.206 5.926 4.638 3.810 3.233 2.807 2.481 2.222 2.013 1.839
21.24213.072 9.441 7.388 6.069 5.149 4.472 3.952 3.540 3.206 2.930
24.97515.369 11.100 8.687 7.136 6.055 5.258 4.647 4.163 3.770 3.445
28.55617.573 12.692 9.933 8.159 6.923 6.012 5.313 4.759 4.310 3.939
15.895 9.782 7.064 5.529 4.541 3.853 3.346 2.957 2.649 2.399 2.192
18.68911.501 8.306 6.501 5.340 4.531 3.935 3.477 3.115 2.821 2.578
21.36913.150 9.497 7.433 6.105 5.180 4.499 3.976 3.561 3.225 2.947
Load F [in kN] for evenly distributed load
(The figures apply for one single grating)
H Material D Support length L/mm
[mm] [mm] 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
DD11 2.5 11.388 7.592 5.694 4.555 3.796 3.254 2.847 2.531 2.278 2.071 1.898
(Stw 22) 3.0 13.211 8.807 6.606 5.284 4.404 3.775 3.303 2.936 2.642 2.402 2.202
503.5 14.895 9.93O 7.448 5.958 4.965 4.256 3.724 3.310 2.979 2.708 2.483
EN AW 2.5 8.522 5.681 4.261 3.409 2.841 2.435 2.130 1.894 1.704 1.549 1.420
5754 3.0 9.886 6.591 4.943 3.954 3.295 2.825 2.471 2.197 1.977 1.797 1.648
(AIMg3) 3.5 11.146 7.431 5.573 4.458 3.715 3.185 2.787 2.477 2.229 2.027 1.858
DD11 2.5 21.417 14.27810.709 8.567 7.139 6.119 5.354 4.759 4.283 3.894 3.570
(Stw 22) 3.0 25.063 16.709 12.531 10.025 8.354 7.161 6.266 5.570 5.013 4.557 4.177
753.5 28.511 19.007 14.255 11.404 9.504 8.146 7.128 6.336 5.702 5.184 4.752
EN AW 2.5 16.027 10.684 8.013 6.411 5.342 4.579 4.007 3.561 3.205 2.914 2.671
5754 3.0 18.755 12.503 9.377 7.502 6.252 5.358 4.689 4.168 3.751 3.410 3.126
(AIMg3) 3.5 21.335 14.223 10.667 8.534 7.112 6.096 5.334 4.741 4.267 3.879 3.556
DD11 2.5 33.986 22.658 16.993 13.595 11.329 9.710 8.497 7.553 6.797 6.179 5.664
(Stw 22) 3.0 39.960 26.640 19.980 15.984 13.320 11.417 9.990 8.880 7.992 7.266 6.660
1003.5 45.690 30.460 22.845 18.276 15.230 13.054 11.422 10.153 9.138 8.307 7.615
EN AW 2.5 25.432 16.955 12.716 10.173 8.477 7.266 6.358 5.652 5.086 4.624 4.239
5754 3.0 29.902 19.935 14.951 11.961 9.967 8.544 7.476 6.645 5.980 5.437 4.984
AIMg3 3.5 34.190 22.793 17.095 13.676 11.397 9.769 8.547 7.598 6.838 6.216 5.698
Moments of inertia
and section modulus
Grating cross-sections (axis X-X1)
Note: The figures are calculated for gratings which are supported over their whole length. For a given
span width, the values stated in this lump-load table must not exceed those given in the single-load
table.
For notes on these tables, please see page 7
Ten times the lump-load bearing capacity than (for example)
gratings with round perforations
* The profiling shown in the diagram is not
reproduced to scale.
3 m
mF
F
20
mm
0 m
mF
0.22 kN 0.45 kN 4.66 kN
Evenly distributed load
10
Graepel-Stabi l
Materials and surface qualities DD11 to DIN ISO EN 10111 (STW 22)
- Raw, untreated
- Hot-dip galvanised to DIN ISO EN 1461 in our own
galvanising shop
- Other surface qualities available on request
DX51 D to DIN EN 10 142
(Hot-dip galvanised)
Stainless steel
- Raw, untreated
- Other surface qualities available on request
EN AW 5754 to DIN ISO EN 485-2 (AlMg3)
- Raw, untreated
- Other surface qualities available on request
Special types1. All Graepel safety gratings are also available as
flat blanks without folded edges.
2. We also produce non-standard sizes (H/L/B/D)
for special applications (e.g. scaffolding).
3. Gratings with unperforated edges or surfaces
on one or both front surfaces can also be
supplied.
4. Gratings are also available in other materials.
Please send us your enquiry.
Steel, raw 1.5/2/2.5/3 mmSteel, hot-dip and coil galvanised 1.5/2/2.5/3 mmStainless steel 2/2.5 mmAluminium 2.5/3 mm
Lengths (L) 12,000 mm**to length divider* 30 mm
Widths (B)
- Steel/Aluminium 120/180/240/300/360/420/480 mm
- Stainless steel 120/180/240/300/360/420/480 mm
Width divider* 60 mm
Heights (H) 40/50/75 mm
Dim
ensi
ons
Mate
rial
sheet
thic
kness
Standard dimensions Graepel-Stabil
* Grating length and width: please order standard dimensions which are divisible by the
dividers mentioned in each case.
** Hot-dip galvanised gratings = L/max. 6,000 mm
L
45 30 30 min.
30
15
14
H
B
ca.
10
approx. 25
30L
H
Ø = 9x12
Graepel-Stabil The safety grating which has become a classic,
for universal use on floor surfaces, walkways
and stairs:
• High anti-skid effect on olives 45 mm wide,
high displacement space and enormous
drainage effect for objects below stop limit of
15 mm
• High load-bearing capacity with substantial
benefits in steel construction
• Elements up to 12 metres in length
The lateral system perforation simplifies
installation.
The load-bearing upward profiling: 10 mm
which as ”profile” allows such high widths and
lump load-bearing capacity in one piece.
Convex ”olives” (punched upwards) ensure a
high non-slip effect and maximum displacement
space. Concave ”olives” (punched downwards)
ensure maximum drainage and displacement
space.
Program-controlled
perforation groupsAppropriate control of the production plant allows
groups of perforations and stampings to be pos-
itioned separately. This means that not only rect-
angular groups of perforations can be punched.
Free perforated cross-section for
standard widths approx. 50%
11
G raepel-Stabi l
Lump load Maximum possible lump load F [in kN]
(The figures apply for DD11—StW 22)
Grating width B Load area 200 x 200 mm
[mm] Sheet thickness [mm]
2.0 2.5 3.0
120 18.39 21.56 24.26
180 9.40 11.03 12.40
240 6.02 7.06 7.94
300 4.66 5.47 6.15
360 3.93 4.61 5.19
420 3.48 4.08 4.59
480 3.17 3.71 4.18
H
x
x1B
Fold Sheet Moment Minimumheight thickness of inertia moment
of resistanceH D Jx
[mm] [mm] [mm4] Wx [mm3]
2.0 56 070. 2 255.
40 2.5 67 105. 2 700.
3.0 92 339. 3 975.
2.0 98 380. 3 240.
50 2.5 118 570. 3 905.
3.0 160 665. 5 615.
2.0 276 770. 6 340.
75 2.5 336 905. 7 710.
3.0 444 615. 10 655.
Moments of inertia
and section modulus
Grating cross-sections (axis X-X1)
Conversion factors Table value x
DD11 (StW 22) → stainless steel 0.85
DD11 (StW 22) → EN AW 5754 (AlMg3) 0.75
Note: The figures are calculated for gratings which are supported over their whole length. For a given
span width, the values stated in this lump-load table must not exceed those given in the single-load
table.
For notes on these tables, please see page 7
Single load Load F [in kN] for single load
(The figures apply for one single grating)
Support length L/mm
500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
3.308 2.035 1.470 1.150 0.945 0.802
3.969 2.442 1.764 1.381 1.134 0.962
5.843 3.596 2.597 2.032 1.670 1.417 1.230 1.087 0.974
2.475 1.523 1.100 0.861
2.970 1.828 1.320 1.033 0.849
4.373 2.691 1.943 1.521 1.249 1.060 0.921
2.925 1.800 1.300 1.017 0.836
4.763 2.931 2.117 1.657 1.361 1.155 1.003 0.886
5.740 3.533 2.551 1.997 1.640 1.392 1.208 1.068 0.957
8.254 5.079 3.668 2.871 2.358 2.001 1.738 1.536 1.376 1.246 1.138
3.564 2.193 1.584 1.240 1.018 0.864
4.296 2.643 1.909 1.494 1.227 1.041 0.904
6.177 3.801 2.745 2.148 1.765 1.497 1.300 1.149 1.029 0.932
4.212 2.592 1.872 1.465 1.203 1.021 0.887
9.320 5.735 4.142 3.242 2.663 2.259 1.962 1.734 1.553 1.407 1.285
11.334 6.975 5.037 3.942 3.238 2.748 2.386 2.109 1.889 1.711 1.563
15.663 9.639 6.961 5.448 4.475 3.797 3.297 2.914 2.610 2.364 2.160
6.974 4.292 3.100 2.426 1.993 1.691 1.468 1.297 1.162 1.053 0.962
8.481 5.219 3.769 2.950 2.423 2.056 1.785 1.578 1.414 1.280 1.170
11.721 7.213 5.209 4.077 3.349 2.841 2.467 2.181 1.953 1.769 1.617
8.242 5.072 3.663 2.867 2.355 1.998 1.735 1.533 1.374 1.244 1.137
Load F [in kN] for evenly distributed load
(The figures apply for one single grating)
H Material D Support length L/mm
[mm] stoff [mm] 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
DD1 1 2.0 5.292 3.528 2.646 2.117 1.764 1.512 1.323 1.176 1.058 0.962 0.882
(Stw 22) 2.5 6.350 4.234 3.175 2.540 2.117 1.814 1.588 1.411 1.270 1.155 1.058
3.0 9.349 6.233 4.675 3.740 3.116 2.671 2.337 2.078 1.870 1.700 1.558
40 EN AW 2.0 3.960 2.640 1.980 1.584 1.320 1.131 0.990 0.880 0.792 0.720 0.660
5754 2.5 4.752 3.168 2.376 1.901 1.584 1.358 1.188 1.056 0.950 0.864 0.792
(AIMg3) 3.0 6.996 4.664 3.498 2.798 2.332 1.999 1.749 1.555 1.399 1.272 1.166
St. steel 2.0 4.680 3.120 2.340 1.872 1.560 1.337 1.170 1.040 0.936 0.851 0.780
DD1 1 2.0 7.620 5.080 3.810 3.048 2.540 2.177 1.905 1.693 1.524 1.386 1.270
(Stw 22) 2.5 9.185 6.123 4.592 3.674 3.062 2.624 2.296 2.041 1.837 1.670 1.531
3.0 13.206 8.804 6.603 5.283 4.402 3.773 3.302 2.935 2.641 2.401 2.201
50 EN AW 2.0 5.702 3.802 2.851 2.281 1.901 1.629 1.426 1.267 1.140 1.037 0.950
5754 2.5 6.873 4.582 3.436 2.749 2.291 1.964 1.718 1.527 1.375 1.250 1.145
(AIMg3) 3.0 9.882 6.588 4.941 3.953 3.294 2.824 2.471 2.196 1.976 1.797 1.647
St. steel 2.0 6.739 4.493 3.370 2.696 2.246 1.925 1.685 1.498 1.348 1.225 1.123
DD11 2.0 14.912 9.941 7.456 5.965 4.971 4.260 3.728 3.314 2.982 2.711 2.485
(Stw 22) 2.5 18.134 12.089 9.067 7.254 6.045 5.181 4.533 4.030 3.627 3.297 3.022
3.0 25.061 16.707 12.530 10.024 8.354 7.160 6.265 5.569 5.012 4.556 4.177
75 EN AW 2.0 11.158 7.439 5.579 4.463 3.719 3.188 2.790 2.480 2.232 2.029 1.860
5754 2.5 13.570 9.046 6.785 5.428 4.523 3.877 3.392 3.015 2.714 2.467 2.262
(AIMg3) 3.0 18.753 12.502 9.376 7.501 6.251 5.358 4.688 4.167 3.751 3.410 3.125
St. steel 2.0 13.187 8.791 6.594 5.275 4.396 3.768 3.297 2.930 2.637 2.398 2.198
Description
Technical data
Load values
Evenly distributed load
Graepel-Steg
12
Graepel-Steg This grating is distinguished by its practical design
and high load-bearing capacity. It is especially
recommended for large floor areas in industrial
production plants.
The lateral system perforation simplifies
installation.
free perforated cross-section for
standard widths approx. 28%
Materials and surface qualities DD11 to DIN ISO EN 10111 (STW 22)
- Raw, untreated
- Hot-dip galvanised to DIN ISO EN 1461 in our own
galvanising shop
- Other surface qualities available on request
DX51 D to DIN EN 10 142
(Hot-dip galvanised)
Stainless steel
- Raw, untreated
- Other surface qualities available on request
EN AW 5754 to DIN ISO EN 485-2 (AlMg3)
- Raw, untreated
- Other surface qualities available on request
Special types1. All Graepel safety gratings are also available as
flat blanks without folded edges.
2. We also produce non-standard sizes (H/L/B/D)
for special applications (e.g. scaffolding).
3. Gratings with unperforated edges or surfaces
on one or both front surfaces can also be
supplied.
4. Gratings are also available in other materials.
Please send us your enquiry.
Steel, raw 2/2.5/3 mmSteel, hot-dip and coil galvanised 2/2.5/3 mmStainless steel 2/2.5 mmAluminium 2/2.5/3 mm
Lengths (L) 12,000 mm**to length divider* 62.5 mm
Widths (B)
- Steel/Aluminium } 150/200/250/300 mm- Stainless steel
Width divider* 50 mm
Heights (H) 30/40/50/75/100 mm
Dim
ensi
ons
Mate
rial
sheet
thic
kness
Standard dimensions Graepel-Steg
* Grating length and width: please order standard dimensions which are divisible by the
dividers mentioned in each case.
** Hot-dip galvanised gratings = L/max. 6,000 mm
L62.5
Ø = 9x12
H 15
B
16
approx. 25
H
62
.5
18
L
50 2514.5
28.5
H
x
x1B
Fold Sheet Moment Minimumheight thickness of inertia moment
of resistanceH D Jx
[mm] [mm] [mm4] Wx [mm3]
2.0 34 361. 1 986.
30 2.5 41 213. 2 382.
3.0 47 609. 2 839.
2.0 66 489. 2 481.
40 2.5 78 441. 3 338.
3.0 94 167. 4 130.
2.0 111 034. 3 803.
50 2.5 131 866. 4 500.
3.0 159 346. 5 591.
2.0 290 776. 6 746.
75 2.5 398 003. 7 480.
3.0 424 533. 10 060.
2.0 563 977. 10 532.
100 2.5 718 125. 12 732.
3.0 874 176. 15 779.
Moments of inertia
and section modulus
Grating cross-sections (axis X-X1)
13
Description
Technical data
Load values
Lump load Maximum possible lump load F [in kN]
(The figures apply for DD11—StW 22)
Grating width B Load area 200 x 200 mm
[mm] Sheet thickness [mm]
2.0 2.5 3.0
150 12.38 13.90 17.20
200 7.71 8.65 10.70
250 5.63 6.32 7.82
300 4.59 5.16 6.38
Note: The figures are calculated for gratings which are supported over their whole length.
For a given span width, the values stated in this lump-load table must not exceed those
given in the single-load table.
For notes on these tables, please see page 7
Load F [in kN] for single load
(The figures apply for one single grating)
Support length L/mm
500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
2.919 1.797 1.298 1.015
3.502 2.155 1.556 1.218 1.000 0.849
4.166 2.564 1.852 1.449 1.190 1.010 0.877
2.185 1.344 0.971
2.620 1.612 1.165 0.911
3.117 1.918 1.386 1.084 0.891
2.582 1.589 1.147 0.898
4.176 2.570 1.856 1.453 1.193 1.012
4.907 3.020 2.181 1.707 1.402 1.190 1.033 0.913
6.071 3.736 2.698 2.112 1.735 1.472 1.278 1.130 1.012 0.916
3.125 1.923 1.389 1.087 0.893
3.672 2.260 1.632 1.277 1.049 0.890
4.543 2.796 2.019 1.580 1.298 1.101 0.956
3.693 2.273 1.641 1.285 1.055 0.895
5.590 3.440 2.485 1.944 1.597 1.355 1.177 1.040 0.932
6.615 4.071 2.940 2.301 1.890 1.604 1.393 1.231 1.103 0.998
8.219 5.058 3.653 2.859 2.348 1.992 1.730 1.529 1.370 1.241 1.134
4.183 2.574 1.859 1.455 1.195 1.014 0.881
4.950 3.046 2.200 1.722 1.414 1.200 1.042 0.921
6.150 3.785 2.733 2.139 1.757 1.491 1.295 1.144 1.025 0.928
4.944 3.042 2.197 1.720 1.413 1.199 1.041 0.920
9.917 6.103 4.407 3.449 2.833 2.404 2.088 1.845 1.653 1.497 1.368
10.996 6.767 4.887 3.825 3.142 2.666 2.315 2.046 1.833 1.660 1.517
14.788 9.100 6.573 5.144 4.225 3.585 3.113 2.751 2.465 2.232 2.040
7.421 4.567 3.298 2.581 2.120 1.799 1.562 1.381 1.237 1.120 1.024
8.228 5.063 3.657 2.862 2.351 1.995 1.732 1.531 1.371 1.242 1.135
11.066 6.810 4.918 3.849 3.162 2.683 2.330 2.059 1.844 1.670 1.526
8.770 5.397 3.898 3.050 2.506 2.126 1.846 1.632 1.462 1.324 1.210
15.482 9.527 6.881 5.385 4.423 3.753 3.259 2.880 2.580 2.337 2.135
18.716 11.518 8.318 6.510 5.347 4.537 3.940 3.482 3.119 2.825 2.582
23.195 14.274 10.309 8.068 6.627 5.623 4.883 4.315 3.866 3.501 3.199
11.585 7.129 5.149 4.030 3.310 2.809 2.439 2.155 1.931 1.749 1.598
14.005 8.619 6.225 4.871 4.001 3.395 2.948 2.606 2.334 2.114 1.932
17.357 10.681 7.714 6.037 4.959 4.208 3.654 3.229 2.893 2.620 2.394
13.692 8.426 6.085 4.762 3.912 3.319 2.882 2.547 2.282 2.067 1.888
Load F [in kN] for evenly distributed load
(The figures apply for one single grating)
H Mater- D Support length L/mm
[mm] ial [mm] 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
DD11 2.0 4.671 3.114 2.336 1.868 1.557 1.335 1.168 1.038 0.934
(Stw 22) 2.5 5.602 3.735 2.801 2.241 1.867 1.601 1.401 1.245 1.120 1.019 0.934
3.0 6.666 4.444 3.333 2.666 2.222 1.904 1.666 1.481 1.333 1.212 1.111
30 EN AW 2.0 3.495 2.330 1.748 1.398 1.165 0.999 0.874 0.777 0.699 0.636 0.583
5754 2.5 4.192 2.795 2.096 1.677 1.397 1.198 1.048 0.932 0.838 0.762 0.699
(AIMg3) 3.0 4.988 3.325 2.494 1.995 1.663 1.425 1.247 1.108 0.998 0.907 0.831
St. steel 2.0 4.131 2.754 2.065 1.652 1.377 1.180 1.033 0.918 0.826 0.751 0.688
DD11 2.0 6.682 4.455 3.341 2.673 2.227 1.909 1.671 1.485 1.336 1.215 1.114
(Stw 22) 2.5 7.851 5.234 3.925 3.140 2.617 2.243 1.963 1.745 1.570 1.427 1.308
3.0 9.714 6.476 4.857 3.886 3.238 2.775 2.428 2.159 1.943 1.766 1.619
40 EN AW 2.0 5.000 3.333 2.500 2.000 1.667 1.429 1.250 1.111 1.000 0.909 0.833
5754 2.5 5.875 3.917 2.937 2.350 1.958 1.679 1.469 1.306 1.175 1.068 0.979
(AIMg3) 3.0 7.269 4.846 3.634 2.908 2.423 2.077 1.817 1.615 1.454 1.322 1.211
St. steel 2.0 5.909 3.940 2.955 2.364 1.970 1.688 1.477 1.313 1.182 1.074 0.985
DD11 2.0 8.945 5.963 4.472 3.578 2.982 2.556 2.236 1.988 1.789 1.626 1.491
(Stw 22) 2.5 10.584 7.056 5.292 4.234 3.528 3.024 2.646 2.352 2.117 1.924 1.764
3.0 13.150 8.767 6.575 5.260 4.383 3.757 3.288 2.922 2.630 2.391 2.192
50 EN AW 2.0 6.693 4.462 3.347 2.677 2.231 1.912 1.673 1.487 1.339 1.217 1.116
5754 2.5 7.920 5.280 3.960 3.168 2.640 2.263 1.980 1.760 1.584 1.440 1.320
(AIMg3) 3.0 9.840 6.560 4.920 3.936 3.280 2.811 2.460 2.187 1.968 1.789 1.640
St. steel 2.0 7.910 5.273 3.955 3.164 2.637 2.260 1.978 1.758 1.582 1.438 1.318
DD11 2.0 15.867 10.578 7.933 6.347 5.289 4.533 3.967 3.526 3.173 2.885 2.644
(Stw 22) 2.5 17.593 11.729 8.796 7.037 5.864 5.027 4.398 3.910 3.519 3.199 2.932
3.0 23.661 15.774 11.831 9.464 7.887 6.760 5.915 5.258 4.732 4.302 3.944
75 EN AW 2.0 11.873 7.915 5.936 4.749 3.958 3.392 2.968 2.638 2.375 2.159 1.979
5754 2.5 13.165 8.777 6.582 5.266 4.388 3.761 3.291 2.926 2.633 2.394 2.194
(AIMg3) 3.0 17.706 11.804 8.853 7.082 5.902 5.059 4.426 3.935 3.541 3.219 2.951
St. steel 2.0 14.032 9.354 7.016 5.613 4.677 4.009 3.508 3.118 2.806 2.551 2.339
DD11 2.0 24.771 16.514 12.386 9.909 8.257 7.078 6.193 5.505 4.954 4.504 4.129
(Stw 22) 2.5 29.946 19.964 14.973 11.978 9.982 8.556 7.486 6.655 5.989 5.445 4.991
3.0 37.112 24.74118.556 14.845 12.371 10.603 9.278 8.247 7.422 6.748 6.185
100 ENAW 2.0 18.536 12.358 9.268 7.415 6.179 5.296 4.634 4.119 3.707 3.370 3.089
5754 2.5 22.408 14.939 11.204 8.963 7.469 6.402 5.602 4.980 4.482 4.074 3.735
(AIMg3) 3.0 27.771 18.514 13.886 11.108 9.257 7.935 6.943 6.171 5.554 5.049 4.629
St. steel 2.0 21.907 14.604 10.953 8.763 7.302 6.259 5.477 4.868 4.381 3.983 3.651
Conversion factors Table value x
DD11 (StW 22) → stainless steel 0.85
DD11 (StW 22) → EN AW 5754 (AlMg3) 0.75
Graepel-Steg
Single loadEvenly distributed load
14
Graepel-Round S
Materials and surface qualities DD11 to DIN ISO EN 10111 (STW 22)
- Raw, untreated
- Hot-dip galvanised to DIN ISO EN 1461 in our own
galvanising shop
- Other surface qualities available on request
DX51 D to DIN EN 10 142
(Hot-dip galvanised)
Stainless steel
- Raw, untreated
- Other surface qualities available on request
EN AW 5754 to DIN ISO EN 485-2 (AlMg3)
- Raw, untreated
- Other surface qualities available on request
Special types1. All Graepel safety gratings are also available as
flat blanks without folded edges.
2. We also produce non-standard sizes (H/L/B/D)
for special applications (e.g. scaffolding).
3. Gratings with unperforated edges or surfaces
on one or both front surfaces can also be
supplied.
4. Gratings are also available in other materials.
Please send us your enquiry.
Steel, raw 1.5/2/2.5/3 mmSteel, hot-dip and coil galvanised 1.5/2/2.5/3 mmStainless steel 2/2.5 mmAluminium 2.5/3 mm
Lengths (L) 12,000 mm**to length divider* 40 mm
Widths (B)
- Steel 120/150/180/210/240/270/300/330/ 360/390/420/450/480 mm
- Stainless steel/Aluminium 120/150/180/210/240/270/300 mm
Width divider* 30 mm
Heights (H) 40/50/75 mm
Dim
ensi
ons
Mate
rial
steel
thic
kness
Standard dimensions Graepel-Rund S
* Grating length and width: please order standard dimensions which are divisible by the
dividers mentioned in each case.
** Hot-dip galvanised gratings = L/max. 6,000 mm
L40
H
Ø = 9x12
L
40
20
14
.5
8 30 10 30
B
H ~3
approx. 25
Graepel-Round SThe Graepel-Round S is a universal grating for use
on floor surfaces and stairways. It offers adequate
displacement space and a safe footing. Its effect-
iveness lies in the combination of
• Large free cross-section (good drainage effect
and weight saving)
• High load-bearing capacity (benefits in steel
construction and architecture)
The lateral system perforation simplifies
installation.
Load-bearing upward profiling: 3 mm profile
has a higher lump-load bearing capacity than
gratings with less profile or closed surfaces.
The upwardly punched holes ensure a good
anti-skid effect, displacement and drainage. The
holes punched downwards increase displacement
and drainage.
Program-controlled
perforation groupsAppropriate control of the production plant allows
groups of perforations and stampings to be pos-
itioned separately. This means that not only rect-
angular groups of perforations can be punched.
Free perforated cross-section for
standard widths approx. 19%
NEW
15
Graepel-Round SDescription
Technical data
Load values
For notes on these tables, please see page 7
H
x
x1B
Fold Sheet Moment Minimumheight thickness of inertia moment
of resistanceH D Jx
[mm] [mm] [mm4] Wx [mm3]
2.0 73 290. 3 300.
40 2.5 88 170. 3 970.
3.0 101 810. 4 580.
2.0 124 820. 4 540.
50 2.5 151 050. 5 495.
3.0 175 470. 6 385.
2.0 333 995. 8 260.
75 2.5 407 610. 10 080.
3.0 477 530. 11 805.
Moments of inertia
and section modulus
Grating cross-sections (axis X-X1)
Note: The figures are calculated for gratings which are supported over their whole length. For a given
span width, the values stated in this lump-load table must not exceed those given in the single-load
table.
Lump load Maximum possible lump load F [in kN]
(The figures apply for DD11—StW 22)
Grating width B Load area 200 x 200 mm
[mm] Sheet thickness [mm]
2.0 2.5 3.0
120 3.04 4.05 5.22
150 2.08 2.77 3.57
180 1.54 2.05 2.64
210 1.20 1.60 2.06
240 1.00 1.33 1.71
270 0.86 1.15 1.48
300 0.77 1.03 1.32
330 0.70 0.94 1.21
360 0.65 0.87 1.12
390 0.61 0.81 1.05
420 0.58 0.77 0.99
Load F [in kN] for single load
(The figures apply for one single grating)
Support length L/mm
500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
4.851 2.985 2.156 1.687 1.386 1.176 1.021 0.903
5.836 3.591 2.594 2.030 1.667 1.415 1.229 1.086 0.973
6.733 4.143 2.992 2.342 1.924 1.632 1.417 1.253 1.122 1.016 0.929
3.630 2.234 1.613 1.263 1.037 0.880
4.367 2.687 1.941 1.519 1.248 1.059 0.919
5.038 3.100 2.239 1.752 1.439 1.221 1.061 0.937
4.290 2.640 1.907 1.492 1.226 1.040 0.903
6.674 4.107 2.966 2.321 1.907 1.618 1.405 1.242 1.112 1.007 0.921
8.078 4.971 3.590 2.810 2.308 1.958 1.701 1.503 1.346 1.219
9.386 5.776 4.172 3.265 2.682 2.275 1.976 1.746 1.564 1.417 1.295
4.994 3.073 2.220 1.737 1.427 1.211 1.051 0.929
6.045 3.720 2.686 2.102 1.727 1.465 1.273 1.125 1.007 0.912
7.024 4.322 3.122 2.443 2.007 1.703 1.479 1.307 1.171 1.060 0.969
5.902 3.632 2.623 2.053 1.686 1.431 1.243 1.098 0.984
12.142 7.472 5.397 4.223 3.469 2.944 2.556 2.259 2.024 1.833 1.675
14.818 9.119 6.586 5.154 4.234 3.592 3.119 2.757 2.470 2.237 2.044
17.353 10.679 7.713 6.036 4.958 4.207 3.653 3.229 2.892 2.619 2.394
9.086 5.591 4.038 3.160 2.596 2.203 1.913 1.690 1.514 1.371 1.253
11.088 6.823 4.928 3.857 3.168 2.688 2.334 2.063 1.848 1.674 1.529
12.986 7.991 5.771 4.517 3.710 3.148 2.734 2.416 2.164 1.960 1.791
10.738 6.608 4.772 3.735 3.068 2.603 2.261 1.998 1.790 1.621 1.481
Load F [in kN] for evenly distributed load
(The figures apply for one single grating)
H Mater- D Support length L/mm
[mm] ial [mm] 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
DD11 2.0 7.762 5.174 3.881 3.105 2.587 2.218 1.940 1.725 1.552 1.411 1.294
(Stw 22) 2.5 9.337 6.225 4.669 3.735 3.112 2.668 2.334 2.075 1.867 1.698 1.556
3.0 10.772 7.181 5.386 4.309 3.591 3.078 2.693 2.394 2.154 1.959 1.795
40 EN AW 2.0 5.808 3.872 2.904 2.323 1.936 1.659 1.452 1.291 1.162 1.056 0.968
5754 2.5 6.987 4.658 3.494 2.795 2.329 1.996 1.747 1.553 1.397 1.270 1.165
(AlMg3) 3.0 8.061 5.374 4.030 3.224 2.687 2.303 2.015 1.791 1.612 1.466 1.343
St. steel 2.0 6.864 4.576 3.432 2.746 2.288 1.961 1.716 1.525 1.373 1.248 1.144
DD 11 2.0 10.678 7.119 5.339 4.271 3.559 3.051 2.670 2.373 2.136 1.941 1.780
(Stw 22) 2.5 12.924 8.616 6.462 5.170 4.308 3.693 3.231 2.872 2.585 2.350 2.154
3.0 15.018 10.012 7.509 6.007 5.006 4.291 3.754 3.337 3.004 2.730 2.503
50 EN AW 2.0 7.990 5.327 3.995 3.196 2.663 2.283 1.998 1.776 1.598 1.453 1.332
5754 2.5 9.671 6.447 4.836 3.868 3.224 2.763 2.418 2.149 1.934 1.758 1.612
(AlMg3) 3.0 11.238 7.492 5.619 4.495 3.746 3.211 2.809 2.497 2.248 2.043 1.873
St. steel 2.0 9.443 6.295 4.722 3.777 3.148 2.698 2.361 2.098 1.889 1.717 1.574
DD 11 2.0 19.428 12.952 9.714 7.771 6.476 5.551 4.857 4.317 3.886 3.532 3.238
(Stw 22) 2.5 23.708 15.805 11.854 9.483 7.903 6.774 5.927 5.268 4.742 4.311 3.951
3.0 27.765 18.510 13.883 11.106 9.255 7.933 6.941 6.170 5.553 5.048 4.628
75 EN AW 2.0 14.538 9.692 7.269 5.815 4.846 4.154 3.634 3.231 2.908 2.643 2.423
5754 2.5 17.741 11.827 8.870 7.096 5.914 5.069 4.435 3.942 3.548 3.226 2.957
(AlMg3) 3.0 20.777 13.851 10.388 8.311 6.926 5.936 5.194 4.617 4.155 3.778 3.463
St. steel 2.0 17.181 11.454 8.590 6.872 5.727 4.909 4.295 3.818 3.436 3.124 2.863
Conversion factors Table value x
DD11 (StW 22) → stainless steel 0.85
DD11 (StW 22) → EN AW 5754 (AlMg3) 0.75
Evenly distributed load
Single load
1616
Graepel-Round N 08/N 12
Materials and surface qualitiesDD11 to DIN ISO EN 10111 (StW 22)
- Raw, untreated
- Hot-dip galvanised to DIN ISO EN 1461 in
our own galvanising shop
- Other surface qualities available on request
DX51 D to DIN EN 10 142
(Hot-dip galvanised)
Stainless steel
- Raw, untreated
- Other surface qualities available on request
EN AW 5754 to DIN EN 485 part 2 (AlMg3)
- Raw, untreated
- Other surface qualities available on request
Special types1. All Graepel safety gratings are also available as
flat blanks without folded edges.
2. We also produce non-standard sizes (H/L/B/D)
for special applications (e.g. scaffolding).
3. Gratings with unperforated edges or surfaces
on one or both front surfaces can also be
supplied.
4. Gratings are also available in other materials.
We will be pleased to advise you.
Steel, raw 2/2.5 mmSteel, hot-dip and coil galvanised 2/2.5 mmStainless steel 2/2.5 mmAluminium 2.5 mm
Lengths (L) 6,000 mmto length divider* 25 mm
Widths (B)
- Steel 120/180/240/300 mm
- Stainless steel/Aluminium 120/180/240/300 mm
Width divider* 20 mm
Heights (H) 40/50/75 mm
Dim
ensi
ons
Mate
rial
steel
thic
kness
Standard dimensions Graepel-Round N 08/ N 12
* Grating length and width: please order standard dimensions that are divisible by the dividers
mentioned in each case.
L50
H
Ø = 9x12
L
B
H ~1
,5
approx. 25
8 5 14 20 20
25
12
,5
25
Graepel-Round N 08/N 12This newly developed grating is a combination of
circular perforation and conical stamping, with
drainage effect. Suitable for barefoot traffic in-
doors and outdoors.
Free perforated cross-section
for standard widths
Round N 08 approx. 9,4%
Round N 12 approx. 21,2%
Round N 08
L50
H
Ø = 9x12
L
B
H ~1
,5
approx. 25
12 14 20 20
25
12
,5
25
5
Round N 12
1717
Graepel-Round N 08/N 12
H
x
x1B
Fold Sheet Moment Minimumheight thickness of inertia moment
of resistanceH D Jx
[mm] [mm] [mm4] Wx [mm3]
2.0 62 792. 2 700.
40 2.5 73 171. 3 134.
3.0 81 369. 3 468.
2.0 108 720. 3 802.
50 2.5 128 169. 4 469.
3.0 144 434. 5 017.
2.0 298 940. 7 176.
75 2.5 358 129. 8 581.
3.0 410 920. 9 825.
Moments of inertia
and section modulus
Grating cross-sections (axis X-X1)
Description
Technical data
Load values
For notes on these tables, please see page 7
Lump load Maximum possible lump load F [in kN]
(The figures apply for DD11—StW 22)
Grating width B Load area 200 x 200 mm
[mm] Sheet thickness [mm]
2.0 2.5 3.0
120 3.00 4.68 6.74
150 2.05 3.20 4.61
180 1.53 2.39 3.45
210 1.18 1.84 2.66
240 0.98 1.53 2.21
270 0.85 1.33 1.91
300 0.76 1.19 1.71
Load F [in kN] for single load
(The figures apply for one single grating)
Support length L/mm
500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
3.969 2.442 1.764 1.381 1.134 0.962
4.607 2.835 2.048 1.602 1.316 1.117 0.970
5.098 3.137 2.266 1.773 1.457 1.236 1.073 0.948
2.970 1.828 1.320 1.033 0.849
3.447 2.121 1.532 1.199 0.985
3.815 2.348 1.695 1.327 1.090 0.925
3.510 2.160 1.560 1.221 1.003 0.851
5.589 3.439 2.484 1.944 1.597 1.355 1.177 1.040 0.931
6.569 4.043 2.920 2.285 1.877 1.593 1.383 1.222 1.095 0.922
7.375 4.538 3.278 2.565 2.107 1.788 1.553 1.372 1.229 1.113 1.017
4.182 2.574 1.859 1.455 1.195 1.014 0.880
4.916 3.025 2.185 1.710 1.405 1.192 1.035 0.915
5.519 3.396 2.453 1.920 1.577 1.338 1.162 1.027 0.920
4.943 3.042 2.197 1.719 1.412 1.198 1.041 0.920
10.549 6.492 4.688 3.669 3.014 2.557 2.221 1.963 1.758 1.592 1.455
12.614 7.763 5.606 4.388 3.604 3.058 2.656 2.347 2.102 1.904 1.740
14.443 8.888 6.419 5.024 4.127 3.501 3.041 2.687 2.407 2.180 1.992
7.894 4.858 3.508 2.746 2.255 1.914 1.662 1.469 1.316 1.191 1.089
9.439 5.809 4.195 3.283 2.697 2.288 1.987 1.756 1.573 1.425 1.302
10.808 6.651 4.803 3.759 3.088 2.620 2.275 2.011 1.801 1.631 1.491
9.329 5.741 4.146 3.245 2.665 2.262 1.964 1.736 1.555 1.408 1.287
Load F [in kN] for evenly distributed load
(The figures apply for one single grating)
H Mat- D Support length L/mm
[mm] erial [mm] 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
DD 11 2.0 6.350 4.234 3.175 2.540 2.117 1.814 1.588 1.411 1.270 1.155 1.058
(Stw 22) 2.5 7.371 4.914 3.686 2.948 2.457 2.106 1.843 1.638 1.474 1.340 1.229
3.0 8.157 5.438 4.078 3.263 2.719 2.330 2.039 1.813 1.631 1.483 1.359
40 EN AW 2.0 4.752 3.168 2.376 1.901 1.584 1.358 1.188 1.056 0.950 0.864 0.792
5754 2.5 5.516 3.667 2.758 2.206 1.839 1.576 1.379 1.226 1.103 1.003 0.919
(AlMg3) 3.0 6.104 4.069 3.052 2.441 2.035 1.744 1.526 1.356 1.221 1.110 1.017
St. steel 2.0 5.616 3.744 2.808 2.246 1.872 1.605 1.404 1.248 1.123 1.021 0.936
DD11 2.0 8.942 5.962 4.471 3.577 2.981 2.555 2.236 1.987 1.788 1.626 1.490
(Stw 22) 2.5 10.511 7.007 5.256 4.204 3.504 3.003 2.628 2.336 2.102 1.911 1.752
3.0 11.800 7.867 5.900 4.720 3.933 3.371 2.950 2.622 2.360 2.145 1.967
50 EN AW 2.0 6.692 4.461 3.346 2.677 2.231 1.912 1.673 1.487 1.338 1.217 1.115
5754 2.5 7.865 5.244 3.933 3.146 2.622 2.247 1.966 1.748 1.573 1.430 1.311
(AlMg3) 3.0 8.830 5.887 4.415 3.532 2.943 2.523 2.207 1.962 1.766 1.605 1.472
St. steel 2.0 7.908 5.272 3.954 3.163 2.636 2.259 1.977 1.757 1.582 1.438 1.318
DD11 2.0 16.878 11.252 8.439 6.751 5.626 4.822 4.219 3.751 3.376 3.069 2.813
(Stw 22) 2.5 20.183 13.455 10.091 8.073 6.728 5.766 5.046 4.485 4.037 3.670 3.364
3.0 23.108 15.406 11.554 9.243 7.703 6.602 5.777 5.135 4.622 4.202 3.851
75 EN AW 2.0 12.630 8.420 6.315 5.052 4.210 3.609 3.157 2.807 2.526 2.296 2.105
5754 2.5 15.103 10.068 7.551 6.041 5.034 4.315 3.776 3.356 3.021 2.746 2.517
(AlMg3) 3.0 17.292 11.528 8.646 6.917 5.764 4.941 4.323 3.843 3.458 3.144 2.882
St. steel 2.0 14.926 9.951 7.463 5.970 4.975 4.265 3.732 3.317 2.985 2.714 2.488
Conversion factors Table value x
DD11 (StW 22) → stainless steel 0.85
DD11 (StW 22) → EN AW 5754 (AlMg3) 0.75
Note: The figures are calculated for gratings which are supported over their whole length. For a given
span width, the values stated in this lump-load table must not exceed those given in the single-load
table.
Evenly distributed load
Single load
18
Graepel-RoundWith its good drainage and adequate displace-
ment space, this safety grating is used mainly for
pre-assembled components such as
• Scaffolding planks and
• Stepboards and ladders for trucks and industrial
vehicles
The lateral system perforation simplifies
installation.
Load-bearing upward profiling: 3 mm profile
has a higher lump-load bearing capacity than, for
example, gratings with lower profile or plain
surfaces.
The upwardly punched holes ensure a good anti-
slip effect, displacement and drainage. The holes
punched downwards increase displacement and
drainage.
Free perforated cross-section for
standard widths approx. 20%
Materials and surface qualities DD11 to DIN ISO EN 10111 (StW 22)
- Raw, untreated
- Hot-dip galvanised to DIN ISO EN 1461
in our own galvanising shop
- Coil galvanised
- Other surface qualities, e.g. painted, available
on request
DX51 D to DIN EN 10 142
(Hot-dip galvanised)
Stainless steel
- Raw, untreated
- Other surface qualities, e.g. painted, pickled and
sandblasted, available on request
EN AW 5754 to DIN EN 485-2 (AlMg3)
- Raw, untreated
- Other surface qualities, e.g. painted and
anodised, available on request
Special types1. All Graepel safety gratings are also available as
flat blanks without folded edges.
2. We also produce non-standard sizes (H/L/B/D)
for special applications (e.g. scaffolding).
3. Gratings with unperforated edges or surfaces on
one or both front surfaces can also be supplied.
4. Gratings are also available in other materials.
We will be pleased to advise you.
L60
Ø = 9x12
H
B
H ~3
approx. 25
L
30
15
14,5 25 25
Graepel-Round
Steel, raw 2/2.5 mmSteel, hot-dip and coil galvanised 2/2.5 mmStainless steel 2/2.5 mmAluminium 2.5 mm
Lengths (L) 12,000 mm**to length divider* 60 mm
Widths (B)- Steel 150/200/250/300/350/
400/450/475 mm
- Stainless steel/Aluminium 150/200/250/300 mm
Width divider* 50 mm
Heights (H) 40/50/75 mm
Standard dimensions Graepel-Round
* Grating length and width: please order standard dimensions that are divisible by the dividers
mentioned in each case
** Hot-dip galvanised grating, max. L = 6,000 mm
Dim
ensi
ons
Mate
rial
steel
thic
kness
19
Graepel-RoundDescription
Technical data
Load values
For notes on these tables, please see page 7
Lump load Maximum possible lump load F [in kN]
(The figures apply for DD11—StW 22)
Grating width B Load area 200 x 200 mm
[mm] Sheet thickness [mm]
2.0 2.5 3.0
100 3.11 4.34 5.87
125 2.11 2.94 3.98
150 1.55 2.16 2.92
175 1.20 1.67 2.26
200 0.96 1.34 1.82
225 0.81 1.13 1.52
250 0.70 0.98 1.33
275 0.63 0.88 1.19
300 0.57 0.80 1.08
325 0.53 0.74 1.00
350 0.50 0.69 0.94
375 0.47 0.65 0.88
400 0.44 0.62 0.84
425 0.42 0.59 0.80
450 0.41 0.57 0.77
475 0.39 0.55 0.74
Load F [in kN] for single load
(The figures apply for one single grating)
Support length L/mm
500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
5.163 3.177 2.295 1.796 1.475 1.252 1.087 0.960
6.214 3.824 2.762 2.161 1.775 1.506 1.308 1.156 1.036 0.938
7.179 4.418 3.191 2.497 2.051 1.740 1.511 1.336 1.197 1.084 0.990
3.863 2.377 1.717 1.344 1.104 0.937
4.650 2.861 2.067 1.617 1.328 1.127 0.979
5.372 3.306 2.388 1.869 1.535 1.302 1.131 1.000 0.895
4.566 2.810 2.029 1.588 1.304 1.107 0.961
7.068 4.349 3.141 2.458 2.019 1.713 1.488 1.315 1.178 1.067 0.975
8.557 5.266 3.803 2.976 2.445 2.074 1.801 1.592 1.426 1.292 1.180
9.946 6.121 4.420 3.459 2.842 2.411 2.094 1.850 1.658 1.501 1.372
5.289 3.255 2.351 1.840 1.511 1.282 1.113 0.984
6.403 3.940 2.846 2.227 1.829 1.552 1.348 1.191 1.067 0.967
7.443 4.580 3.308 2.589 2.126 1.804 1.567 1.385 1.240 1.123 1.027
6.250 3.846 2.778 2.174 1.786 1.515 1.316 1.163 1.042 0.943
19.630 12.080 8.725 6.828 5.609 4.759 4.133 3.652 3.272 2.963 2.708
24.071 14.813 10.698 8.373 6.878 5.835 5.068 4.478 4.012 3.633 3.320
28.337 17.438 12.594 9.856 8.096 6.870 5.966 5.272 4.723 4.277 3.909
14.689 9.040 6.529 5.109 4.197 3.561 3.093 2.733 2.448 2.217 2.026
18.013 11.085 8.006 6.265 5.146 4.367 3.792 3.351 3.002 2.719 2.484
21.205 13.094 9.424 7.376 6.058 5.141 4.464 3.945 3.534 3.201 2.925
17.360 10.683 7.716 6.038 4.960 4.209 3.655 3.230 2.893 2.620 2.395
Load F [in kN] for evenly distributed load
(The figures apply for one single grating)
H Mater- D Support length L/mm
[mm] ial [mm] 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
DD 11 2.0 8.260 5.507 4.130 3.304 2.753 2.360 2.065 1.836 1.652 1.502 1.377
(Stw 22) 2.5 9.942 6.628 4.971 3.977 3.314 2.841 2.485 2.209 1.988 1.808 1.657
3.0 11.487 7.658 5.744 4.595 3.829 3.282 2.872 2.553 2.297 2.089 1.915
40 EN AW 2.0 6.181 4.121 3.091 2.472 2.060 1.766 1.545 1.374 1.236 1.124 1.030
5754 2.5 7.440 4.960 3.720 2.976 2.480 2.126 1.860 1.653 1.488 1.353 1.240
(AIMg3) 3.0 8.596 5.731 4.298 3.438 2.865 2.456 2.149 1.910 1.719 1.563 1.433
St. steel 2.0 7.305 4.870 3.652 2.922 2.435 2.087 1.826 1.623 1.461 1.328 1.217
DD11 2.0 11.308 7.539 5.654 4.523 3.769 3.231 2.827 2.513 2.262 2.056 1.885
(Stw 22) 2.5 13.691 9.127 6.845 5.476 4.564 3.912 3.423 3.042 2.738 2.489 2.282
3.0 15.914 10.609 7.957 6.365 5.305 4.547 3.978 3.536 3.183 2.893 2.652
50 EN AW 2.0 8.462 5.641 4.231 3.385 2.821 2.418 2.116 1.880 1.692 1.539 1.410
5754 2.5 10.245 6.830 5.122 4.098 3.415 2.927 2.561 2.277 2.049 1.863 1.707
(AIMg3) 3.0 11.908 7.939 5.954 4.763 3.969 3.402 2.977 2.646 2.382 2.165 1.985
St. steel 2.0 10.001 6.667 5.000 4.000 3.334 2.857 2.500 2.222 2.000 1.818 1.667
DD11 2.0 31.409 20.939 15.704 12.563 10.470 8.974 7.852 6.980 6.282 5.711 5.235
(Stw 22) 2.5 38.514 25.676 19.257 15.406 12.838 11.004 9.629 8.559 7.703 7.003 6.419
3.0 45.340 30.226 22.670 18.136 15.113 12.954 11.335 10.075 9.068 8.244 7.557
75 EN AW 2.0 23.503 15.669 11.752 9.401 7.834 6.715 5.876 5.223 4.701 4.273 3.917
5754 2.5 28.820 19.213 14.410 11.528 9.607 8.234 7.205 6.404 5.764 5.240 4.803
(AIMg3) 3.0 33.928 22.618 16.964 13.571 11.309 9.694 8.482 7.539 6.786 6.169 5.655
St. steel 2.0 27.776 18.518 13.888 11.111 9.259 7.936 6.944 6.173 5.555 5.050 4.629
H
x
x1B
Fold Sheet Moment Minimumheight thickness of inertia moment
of resistanceH D Jx
[mm] [mm] [mm4] Wx [mm3]
2.0 71 537. 3 269.
40 2.5 83 936. 3 823.
3.0 94 116. 4 268.
2.0 122 260. 4 513.
50 2.5 144 881. 5 335.
3.0 164 263. 6 030.
2.0 328 712. 8 230.
75 2.5 395 005. 9 875.
3.0 45 798. 11 351.
Moments of inertia
and section modulus
Grating cross-sections (axis X-X1)
Conversion factors Table value x
DD11 (StW 22) → stainless steel 0.85
DD11 (StW 22) → EN AW 5754 (AlMg3) 0.75
Note: The figures are calculated for gratings which are supported over their whole length. For a given
span width, the values stated in this lump-load table must not exceed those given in the single-load
table.
Evenly distributed load
Single load
20
Graepel-Round KAn ”open safety grating” which is particularly
suitable for pedestrian areas but also for industrial
uses such as canteen kitchens, slaughterhouses,
etc.
• Anti-skid with adequate displacement space
and good drainage effect; easily cleaned
• Satisfactory screening effect, e.g. on stairways
and pedestrian bridges
The lateral system perforation simplifies
installation
Load-bearing upward profiling: 3 mm profile
has a higher point-loading capacity than, for
example, gratings with a lower profile or plain
surfaces.
The upwardly punched holes ensure a good anti-
slip effect, displacement and drainage. The holes
punched downwards increase displacement and
drainage.
Free perforated cross-section for
standard widths approx. 6%
Materials and surface qualities DD11 to DIN ISO EN 10111 (StW 22)
- Raw, untreated
- Hot-dip galvanised to DIN ISO EN 1461
in our own galvanising shop
- Other surface qualities, e.g. painted, available
on request
DX51 D to DIN EN 10 142
(Hot-dip galvanised)
Stainless steel
- Raw, untreated
- Other surface qualities, e.g. painted, pickled and
sandblasted, available on request
EN AW 5754 to DIN EN 485-2 (AlMg3)
- Raw, untreated
- Other surface qualities, e.g. painted and
anodised, available on request
Special types1. All Graepel safety gratings are also available as
flat blanks without folded edges.
2. We also produce non-standard sizes (H/L/B/D)
for special applications (e.g. scaffolding).
3. Gratings with unperforated edges or surfaces on
one or both front surfaces can also be supplied.
4. Gratings are also available in other materials.
We will be pleased to advise you.
L30
B
approx. 25
Ø = 9x12
HH ~
3
L
30
15
8 25 25
Graepel-Round K
Steel, raw 1.5/2/2.5/3 mmSteel, hot-dip and coil galvanised 1.5/2/2.5/3 mmStainless steel 2/2.5/3 mmAluminium 2.5/3 mm
Lengths (L) 12,000 mm** to length divider* 30 mm
Widths (B)- Steel }- Stainless steel/Aluminium
Width divider* 50 mm
Heights (H) 40/50/75 mm
* Grating length and width: please order standard dimensions that are divisible by the dividers
mentioned in each case
** Hot-dip galvanised grating, max. L = 6,000 mm
100/150/200/250
300 mm
Standard dimensions Graepel-Round
Dim
ensi
ons
Mate
rial
steel
thic
kness
21
Graepel-Round KDescription
Technical data
Load values
For notes on these tables, please see page 7
Load F [in kN] for single load
(The figures apply for one single grating)
Support length L/mm
500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
5.743 3.534 2.553 1.998 1.641 1.392 1.209 1.069 0.957
6.919 4.258 3.075 2.407 1.977 1.677 1.457 1.287 1.153 1.044 0.954
8.003 4.925 3.557 2.784 2.286 1.940 1.685 1.489 1.334 1.208 1.104
4.298 2.645 1.910 1.495 1.228 1.042 0.905
5.178 3.186 2.301 1.801 1.479 1.255 1.090 0.963
5.988 3.685 2.662 2.083 1.711 1.452 1.261 1.114 0.998
5.079 3.126 2.257 1.767 1.451 1.231 1.069 0.945
7.794 4.796 3.464 2.711 2.227 1.889 1.641 1.450 1.299 1.176 1.075
9.445 5.812 4.198 3.285 2.699 2.290 1.988 1.757 1.574 1.426 1.303
10.985 6.760 4.882 3.821 3.139 2.663 2.313 2.044 1.831 1.658 1.515
5.832 3.589 2.592 2.029 1.666 1.414 1.228 1.085 0.972
7.068 4.349 3.141 2.458 2.019 1.713 1.488 1.315 1.178 1.067 0.975
8.220 5.059 3.653 2.859 2.349 1.993 1.731 1.529 1.370 1.241 1.134
6.893 4.242 3.063 2.397 1.969 1.671 1.451 1.282 1.149 1.040 0.951
13.800 8.493 6.133 4.800 3.943 3.346 2.905 2.568 2.300 2.083 1.903
16.856 10.373 7.492 5.863 4.816 4.086 3.549 3.136 2.809 2.544 2.325
24.176 14.877 10.745 8.409 6.907 5.861 5.090 4.498 4.029 3.649 3.335
10.327 6.355 4.590 3.592 2.951 2.503 2.174 1.921 1.721 1.559 1.424
12.614 7.762 5.606 4.387 3.604 3.058 2.656 2.347 2.102 1.904 1.740
18.091 11.133 8.040 6.292 5.169 4.386 3.809 3.366 3.015 2.731 2.495
12.204 7.510 5.424 4.245 3.487 2.959 2.569 2.271 2.034 1.842 1.683
Load F [in kN] for evenly distributed load
(The figures apply for one single grating)
H Mater- D Support length L/mm
[mm] ial [mm] 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
DD11 2.0 9.189 6.126 4.595 3.676 3.063 2.626 2.297 2.042 1.838 1.671 1.532
(Stw 22) 2.5 11.071 7.381 5.535 4.428 3.690 3.163 2.768 2.460 2.214 2.013 1.845
3.0 12.804 8.536 6.402 5.122 4.268 3.658 3.201 2.845 2.561 2.328 2.134
40 EN AW 2.0 6.876 4.584 3.438 2.751 2.292 1.965 1.719 1.528 1.375 1.250 1.146
5754 2.5 8.284 5.523 4.142 3.314 2.761 2.367 2.071 1.841 1.657 1.506 1.381
(AIMg3) 3.0 9.581 6.388 4.791 3.833 3.194 2.738 2.395 2.129 1.916 1.742 1.597
St. steel 2.0 8.127 5.418 4.063 3.251 2.709 2.322 2.032 1.806 1.625 1.478 1.354
DD11 2.0 12.470 8.314 6.235 4.988 4.157 3.563 3.118 2.771 2.494 2.267 2.078
(Stw 22) 2.5 15.112 10.074 7.556 6.045 5.037 4.318 3.778 3.358 3.022 2.748 2.519
3.0 17.576 11.718 8.788 7.031 5.859 5.022 4.394 3.906 3.515 3.196 2.929
50 EN AW 2.0 9.332 6.221 4.666 3.733 3.111 2.666 2.333 2.074 1.866 1.697 1.555
5754 2.5 11.308 7.539 5.654 4.523 3.769 3.231 2.827 2.513 2.262 2.056 1.885
(AIMg3) 3.0 13.152 8.768 6.576 5.261 4.384 3.758 3.288 2.923 2.630 2.391 2.192
St. steel 2.0 11.028 7.352 5.514 4.411 3.676 3.151 2.757 2.451 2.206 2.005 1.838
DD11 2.0 22.081 14.720 11.040 8.832 7.360 6.309 5.520 4.907 4.416 4.015 3.680
(Stw 22) 2.5 26.970 17.980 13.485 10.788 8.990 7.706 6.743 5.993 5.394 4.904 4.495
3.0 38.681 25.787 19.340 15.472 12.894 11.052 9.670 8.596 7.736 7.033 6.447
75 EN AW 2.0 16.523 11.015 8.261 6.609 5.508 4.721 4.131 3.672 3.305 3.004 2.754
5754 2.5 20.182 13.455 10.091 8.073 6.727 5.766 5.045 4.485 4.036 3.669 3.364
(AIMg3) 3.0 28.945 19.297 14.472 11.578 9.648 8.270 7.236 6.432 5.789 5.263 4.824
St. steel 2.0 19.527 13.018 9.764 7.811 6.509 5.579 4.882 4.339 3.905 3.550 3.255
Lump load Maximum possible lump load F [in kN]
(The figures apply for DD11—StW 22)
Grating width B Load area 200 x 200 mm
[mm] Sheet thickness [mm]
2.0 2.5 3.0
120 2.47 3.62 5.12
150 1.69 2.48 3.50
180 1.26 1.85 2.62
210 0.97 1.43 2.02
240 0.81 1.19 1.68
270 0.70 1.03 1.45
300 0.63 0.92 1.30
H
x
x1B
Fold Sheet Moment Minimumheight thickness of inertia moment
of resistanceH D Jx
[mm] [mm] [mm4] Wx [mm3]
2.0 77 059. 3 667.
40 2.5 90 719. 4 304.
3.0 102 128. 4 828.
2.0 130 917. 5 011.
50 2.5 155 547. 5 941.
3.0 176 894. 6 738.
2.0 348 155. 8 969.
75 2.5 419 061. 10 783.
3.0 483 389. 12 420.
Moments of inertia
and section modulus
Grating cross-sections (axis X-X1)
Conversion factors Table value x
DD11 (StW 22) → stainless steel 0.85
DD11 (StW 22) → EN AW 5754 (AlMg3) 0.75
Note: The figures are calculated for gratings which are supported over their whole length. For a given
span width, the values stated in this lump-load table must not exceed those given in the single-load
table.
Evenly distributed load
Single load
22
Graepel-Diamond
and Graepel-ConeThese two gratings with closed surfaces are used
in industrial and public areas
• Where technical utility has to meet certain
architectural requirements (high tech)
• Where a measure of compromise is necessary,
i.e. a certain anti-skid effect and displacement
space are required, where the view between
two levels should be screened, where nothing
should drop through, and where finer
(non-industrial) shoes are worn
Materials and surface qualities DD11 to DIN ISO EN 10111 (STW 22)
- Raw, untreated
- Hot-dip galvanised to DIN ISO EN 1461 in our own
galvanising shop
- Other surface qualities available on request
DX51 D to DIN EN 10 142
(Hot-dip galvanised)
Stainless steel
- Raw, untreated
- Other surface qualities available on request
EN AW 5754 to DIN ISO EN 485-2 (AlMg3)
- Raw, untreated
- Other surface qualities available on request
Special types1. All Graepel safety gratings are also available as
flat blanks without folded edges.
2. We also produce non-standard sizes (H/L/B/D)
for special applications (e.g. scaffolding).
3. Gratings with unperforated edges or surfaces
on one or both front surfaces can also be
supplied.
4. Gratings are also available in other materials.
Please send us your enquiry.
L40
H
Ø = 9x12
B
approx. 25
H ~2
20
10L
14
22 17 19 min.
L40
Ø = 9x12
H
B
approx. 25
H
1.5
L
10
5 10 10 min.
10
Graepel-Diamond/Cone
Steel, raw 2/2.5/3 mm 2/2.5/3 mmSteel, hot and coil galvanised 2/2.5 mm 2/2.5 mmStainless steel 2/2.5/3 mm 2/2.5/3 mmAluminium 2.5/3 mm 2/2.5/3 mm
Lengths (L) 12,000 mm** 12,000 mm** to length divider* 40 mm 40 mm
Widths (B)- Steel
- Aluminium } }- Stainless steel
Width divider* 17 mm 10 mm
Heights (H) 40/50/75 mm 40/50/75 mm
Standard dimensions Graepel-Diamond Graepel-Cone
* Grating length and width: please order standard dimensions which are divisible by the
dividers mentioned in each case.
Dim
ensi
ons
Mate
rial
sheet
thic
kness
100–300 mm in every
width given for other
gratings
120–300 mm
in 10 mm incrementsGraepel-Diamond
Graepel-Cone
23
Graepel-Diamond/ConeDescription
Technical data
Load values
For notes on these tables, please see page 7
Lump load Maximum possible lump load F [in kN]
(The figures apply for DD11—StW 22)
Grating width B Load area 200 x 200 mm
[mm] Sheet thickness [mm]
2.0 2.5 3.0
120 3.00 4.68 6.74
150 2.05 3.20 4.61
180 1.51 2.36 3.40
210 1.18 1.84 2.66
240 0.98 1.53 2.21
270 0.85 1.33 1.91
300 0.76 1.19 1.71
Load F [in kN] for single load
(The figures apply for one single grating)
Support length L/mm
500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
5.920 3.643 2.631 2.059 1.691 1.435 1.246 1.101 0.987
8.029 4.941 3.569 2.793 2.294 1.946 1.690 1.494 1.338 1.212 1.107
8.738 5.377 3.883 3.039 2.496 2.118 1.840 1.626 1.456 1.319 1.205
4.430 2.726 1.969 1.541 1.266 1.074 0.933
6.008 3.697 2.670 2.090 1.717 1.457 1.265 1.118 1.001 0.907
6.538 4.024 2.906 2.274 1.868 1.585 1.377 1.216 1.090 0.987
5.235 3.222 2.327 1.821 1.496 1.269 1.102 0.974
8.029 4.941 3.569 2.793 2.294 1.946 1.690 1.494 1.338 1.212 1.107
10.177 6.263 4.523 3.540 2.908 2.467 2.142 1.893 1.696 1.536 1.404
12.005 7.388 5.336 4.176 3.430 2.910 2.527 2.234 2.001 1.812 1.656
6.008 3.697 2.670 2.090 1.717 1.457 1.265 1.118 1.001 0.907
7.615 4.686 3.385 2.649 2.176 1.846 1.603 1.417 1.269 1.149 1.050
8.984 5.528 3.993 3.125 2.567 2.178 1.891 1.671 1.497 1.356 1.239
7.101 4.370 3.156 2.470 2.029 1.721 1.495 1.321 1.183 1.072 0.979
14.171 8.720 6.298 4.929 4.049 3.435 2.983 2.636 2.362 2.139 1.955
18.057 11.112 8.026 6.281 5.159 4.378 3.802 3.360 3.010 2.726 2.491
21.563 13.270 9.584 7.500 6.161 5.227 4.540 4.012 3.594 3.255 2.974
10.604 6.526 4.713 3.688 3.030 2.571 2.232 1.973 1.767 1.601 1.463
13.512 8.315 6.006 4.700 3.861 3.276 2.845 2.514 2.252 2.040 1.864
16.136 9.930 7.172 5.612 4.610 3.912 3.397 3.002 2.689 2.436 2.226
12.532 7.712 5.570 4.359 3.581 3.038 2.638 2.332 2.089 1.892 1.729
Load F [in kN] for evenly distributed load
(The figures apply for one single grating)
H Mater- D Support length L/mm
[mm] ial [mm] 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
DD11 2.0 9.472 6.314 4.736 3.789 3.157 2.706 2.368 2.105 1.894 1.722 1.579
(Stw 22) 2.5 12.847 8.564 6.423 5.139 4.282 3.670 3.212 2.855 2.569 2.336 2.141
3.0 13.980 9.320 6.990 5.592 4.660 3.994 3.495 3.107 2.796 2.542 2.330
40 EN AW 2.0 7.088 4.725 3.544 2.835 2.363 2.025 1.772 1.575 1.418 1.289 1.181
5754 2.5 9.613 6.409 4.807 3.845 3.204 2.747 2.403 2.136 1.923 1.748 1.602
(AIMg3) 3.0 10.461 6.974 5.231 4.185 3.487 2.989 2.615 2.325 2.092 1.902 1.744
St. steel 2.0 8.376 5.584 4.188 3.350 2.792 2.393 2.094 1.861 1.675 1.523 1.396
DD11 2.0 12.847 8.564 6.423 5.139 4.282 3.670 3.212 2.855 2.569 2.336 2.141
(Stw 22) 2.5 16.283 10.855 8.141 6.513 5.428 4.652 4.071 3.618 3.257 2.961 2.714
3.0 19.209 12.806 9.604 7.684 6.403 5.488 4.802 4.269 3.842 3.493 3.201
50 EN AW 2.0 9.613 6.409 4.807 3.845 3.204 2.747 2.403 2.136 1.923 1.748 1.602
5754 2.5 12.184 8.123 6.092 4.874 4.061 3.481 3.046 2.708 2.437 2.215 2.031
(AIMg3) 3.0 14.374 9.583 7.187 5.750 4.791 4.107 3.593 3.194 2.875 2.613 2.396
St. steel 2.0 11.361 7.574 5.680 4.544 3.787 3.246 2.840 2.525 2.272 2.066 1.893
DD11 2.0 22.673 15.116 11.337 9.069 7.558 6.478 5.668 5.039 4.535 4.122 3.779
(Stw 22) 2.5 28.892 19.261 14.446 11.557 9.631 8.255 7.223 6.420 5.778 5.253 4.815
3.0 34.501 23.001 17.251 13.801 11.500 9.858 8.625 7.667 6.900 6.273 5.750
75 EN AW 2.0 16.966 11.311 8.483 6.787 5.655 4.848 4.242 3.770 3.393 3.085 2.828
5754 2.5 21.620 14.413 10.810 8.648 7.207 6.177 5.405 4.804 4.324 3.931 3.603
(AIMg3) 3.0 25.817 17.212 12.909 10.327 8.606 7.376 6.454 5.737 5.163 4.694 4.303
St. steel 2.0 20.051 13.367 10.026 8.020 6.684 5.729 5.013 4.456 4.010 3.646 3.342
H
x
x1B
Fold Sheet Moment Minimumheight thickness of inertia moment
of resistanceH D Jx
[mm] [mm] [mm4] Wx [mm3]
2.0 81 695. 4 027.
40 2.5 106 597. 5 080.
3.0 131 244. 5 944.
2.0 138 251. 5 462.
50 2.5 180 941. 6 923.
3.0 223 930. 8 167.
2.0 364 882. 9 640.
75 2.5 478 044. 12 284.
3.0 594 502. 14 669.
Moments of inertia
and section modulus
Grating cross-sections (axis X-X1)
Conversion factors Table value x
DD11 (StW 22) → stainless steel 0.85
DD11 (StW 22) → EN AW 5754 (AlMg3) 0.75
Note: The figures are calculated for gratings which are supported over their whole length. For a given
span width, the values stated in this lump-load table must not exceed those given in the single-load
table.
Evenly distributed load
Single load
24
Graepel-Rubber Stud
Materials and surface qualities DD11 to DIN ISO EN 10111 (STW 22)
- Raw, untreated
- Hot-dip galvanised to DIN ISO EN 1461 in our own
galvanising shop
- Other surface qualities available on request
DX51 D to DIN EN 10 142
(Hot-dip galvanised)
Stainless steel
- Raw, untreated
- Other surface qualities available on request
EN AW 5754 to DIN ISO EN 485-2 (AlMg3)
- Raw, untreated
- Other surface qualities available on request
Special types1. All Graepel safety gratings are also available as
flat blanks without folded edges.
2. We also produce non-standard sizes (H/L/B/D)
for special applications (e.g. scaffolding).
3. Gratings with unperforated edges or surfaces
on one or both front surfaces can also be
supplied.
4. Gratings are also available in other materials.
Please send us your enquiry.
Steel, raw 2/2.5/3 mmSteel, hot-dip and coil galvanised 2/2.5/3 mmStainless steel 2 mmAluminium 2.5/3 mm
Lengths (L) 6,000 mmto length divider* 40 mm
Widths (B)
- Steel– Aluminium } 120/150/180/210/240/270/300 mm- Stainless steel
Width divider* 30 mm
Heights (H) 40/50/75 mm
Dim
ensi
ons
Mate
rial
steel
thic
kness
Standard dimensions Graepel-Rubber Stud
* Grating length and width: please order standard dimensions which are divisible by the
dividers mentioned in each case.
L
40
Ø = 9x12
H
B
approx. 25
H
~4
L
60 30
20
20
40
Graepel-Rubber StudA Graepel safety grating with rubber studs for
sound damping. Its high anti-skid properties and
attractive appearance make this grating a popular
choice for stairways and floors in modern urban
architecture as well as industrial use.
Lateral system perforation simplifies
installation.
Step edge with red studs also available.
25
Graepel-Rubber StudDescription
Technical data
Load values
For notes on these tables, please see page 7
Lump load Maximum possible lump load F [in kN]
(The figures apply for DD11—StW 22)
Grating width B Load area 200 x 200 mm
[mm] Sheet thickness [mm]
2.0 2.5 3.0
120 3.00 4.68 6.74
150 2.05 3.20 4.61
180 1.53 2.39 3.45
210 1.18 1.84 2.66
240 0.98 1.53 2.21
270 0.85 1.33 1.91
300 0.76 1.19 1.71
Load F [in kN] for single load
(The figures apply for one single grating)
Support length L/mm
500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
5.743 3.534 2.553 1.998 1.641 1.392 1.209 1.069 0.957
6.755 4.157 3.002 2.349 1.930 1.637 1.422 1.257 1.126 1.020 0.932
7.591 4.671 3.374 2.640 2.169 1.840 1.598 1.412 1.265 1.146 1.047
4.298 2.645 1.910 1.495 1.228 1.042 0.905
5.055 3.110 2.246 1.758 1.444 1.225 1.064 0.940
5.680 3.496 2.525 1.976 1.623 1 .377 1.196 1.057 0.947
5.079 3.126 2.257 1.767 1.451 1.231 1.069 0.945
7.809 4.805 3.471 2.716 2.231 1.893 1.644 1.453 1.301 1.179 1.077
9.271 5.705 4.121 3.225 2.649 2.248 1.952 1.725 1.545 1.399 1.279
10.533 6.482 4.681 3.663 3.009 2.553 2.217 1.960 1.755 1.590 1.453
5.843 3.596 2.597 2.032 1.669 1.417 1.230 1.087 0.974
6.938 4.269 3.083 2.413 1.982 1.682 1.461 1.291 1.156 1.047 0.957
7.882 4.850 3.503 2.741 2.252 1.911 1.659 1.466 1.314 1.190 1.087
6.906 4.250 3.069 2.402 1.973 1.674 1.454 1.285 1.151 1.042 0.952
13.843 8.519 6.152 4.815 3.955 3.356 2.914 2.575 2.307 2.090 1.909
16.658 10.251 7.404 5.794 4.759 4.038 3.507 3.099 2.776 2.514 2.298
19.207 11.820 8.536 6.681 5.488 4.656 4.044 3.573 3.201 2.899 2.649
10.359 6.375 4.604 3.603 2.960 2.511 2.181 1.927 1.726 1.564 1.429
12.465 7.671 5.540 4.336 3.561 3.022 2.624 2.319 2.078 1.882 1.719
14.373 8.845 6.388 4.999 4.106 3.484 3.026 2.674 2.395 2.169 1.982
12.242 7.534 5.441 4.258 3.498 2.968 2.577 2.278 2.040 1.848 1.689
Load F [in kN] for evenly distributed load
(The figures apply for one single grating)
H Mater- D Support length L/mm
[mm] ial [mm] 500 750 1,000 1,250 1,500 1,750 2,000 2,250 2,500 2,750 3,000
DD11 2.0 9.189 6.126 4.595 3.676 3.063 2.626 2.297 2.042 1.838 1.671 1.532
(Stw 22) 2.5 10.807 7.205 5.404 4.323 3.602 3.088 2.702 2.402 2.161 1.965 1.801
3.0 12.146 8.097 6.073 4.858 4.049 3.470 3.036 2.699 2.429 2.208 2.024
40 EN AW 2.0 6.876 4.584 3.438 2.751 2.292 1.965 1.719 1.528 1.375 1.250 1.146
5754 2.5 8.087 5.391 4.044 3.235 2.696 2.311 2.022 1.797 1.617 1.470 1.348
(AIMg3) 3.0 9.089 6.059 4.544 3.635 3.030 2.597 2.272 2.020 1.818 1.652 1.515
St. steel 2.0 8.127 5.418 4.063 3.251 2.709 2.322 2.032 1.806 1.625 1.478 1.354
DD11 2.0 12.494 8.329 6.247 4.998 4.165 3.570 3.123 2.776 2.499 2.272 2.082
(Stw 22) 2.5 14.834 9.889 7.417 5.934 4.945 4.238 3.709 3.296 2.967 2.697 2.472
3.0 16.852 11.235 8.426 6.741 5.617 4.815 4.213 3.745 3.370 3.064 2.809
50 EN AW 2.0 9.349 6.233 4.675 3.740 3.116 2.671 2.337 2.078 1.870 1.700 1.558
5754 2.5 11.100 7.400 5.550 4.440 3.700 3.172 2.775 2.467 2.220 2.018 1.850
(AIMg3) 3.0 12.610 8.407 6.305 5.044 4.203 3.603 3.153 2.802 2.522 2.293 2.102
St. steel 2.0 11.049 7.366 5.524 4.420 3.683 3.157 2.762 2.455 2.210 2.009 1.841
DD11 2.0 22.149 14.766 11.074 8.860 7.383 6.328 5.537 4.922 4.430 4.027 3.691
(Stw 22) 2.5 26.653 17.769 13.326 10.661 8.884 7.615 6.663 5.923 5.331 4.846 4.442
3.0 30.731 20.487 15.366 12.292 10.244 8.780 7.683 6.829 6.146 5.587 5.122
75 EN AW 2.0 16.574 11.049 8.287 6.630 5.525 4.735 4.143 3.683 3.315 3.013 2.762
5754 2.5 19.944 13.296 9.972 7.978 6.648 5.698 4.986 4.432 3.989 3.626 3.324
(AIMg3) 3.0 22.996 15.331 11.498 9.198 7.665 6.570 5.749 5.110 4.599 4.181 3.833
St. steel 2.0 19.587 13.058 9.794 7.835 6.529 5.596 4.897 4.353 3.917 3.561 3.265
H
x
x1B
Fold Sheet Moment Minimumheight thickness of inertia moment
of resistanceH D Jx
[mm] [mm] [mm4] Wx [mm3]
2.0 80 188. 3 907.
40 2.5 94 556. 4 594.
3.0 106 654. 5 164.
2.0 135 860. 5 312.
50 2.5 161 630. 6 307.
3.0 184 089. 7 165.
2.0 359 402. 9 417.
75 2.5 432 968. 11 332.
3.0 499 905. 13 066.
Moments of inertia
and section modulus
Grating cross-sections (axis X-X1)
Conversion factors Table value x
DD11 (StW 22) → stainless steel 0.85
DD11 (StW 22) → EN AW 5754 (AlMg3) 0.75
Note: The figures are calculated for gratings which are supported over their whole length. For a given
span width, the values stated in this lump-load table must not exceed those given in the single-load
table.
Evenly distributed load
Single load
Grat ing weights
26
Graepel-Stabil S
Weights for Graepel safety gratings
Fold Material SheetWeight kg/m for width [B] in mm
height H thickness D mm mm
300 400 500 600 700 800
2.5 9.8 11.9 14.1 16.2 18.4 20.5
50 3.0 11.7 14.5 16.9 19.5 22.0 24.7
3.5 13.8 16.8 19.8 22.8 25.8 28.8
2.5 11.0 13.0 15.2 17.3 19.5 21.6
75 3.0 13.1 15.7 18.3 20.9 23.3 25.9
3.5 5.3 18.3 21.3 24.3 27.3 30.3
2.5 11.9 14.1 16.2 18.4 20.5 22.7
100 3.0 14.3 16.9 19.5 22.0 24.7 27.2
3.5 16.8 19.8 22.8 25.8 28.8 31.8
Fold Material Sheet Weight kg/m for width [B] in mmheight H thickness D mm mm
120 180 240 250 300 360 420 480
2.0 4.0 5.1 6.1 6.3 7.1 8.2 9.2 10.3
2.5 5.0 6.3 7.6 7.8 8.9 10.1 11.4 12.7
403 5.3 6.9 8.4 8.7 10.0 11.6 13.1 14.7
2 1.2 1.5 1.8 1.9 2.1 2.5 2.8 3.1
AlMg3 2.5 1.4 1.8 2.2 2.3 2.6 3.0 3.4 3.8
3 1.7 2.2 2.6 2.7 3.1 3.6 4.1 4.6
2 4.0 5.1 6.1 6.3 7.1 8.2 9.2 10.3
2.5 5.0 6.3 7.6 7.8 8.9 10.1 11.4 12.7
503 5.9 7.4 9.0 9.2 10.5 12.1 13.6 15.2
2 1.3 1.6 1.9 2.0 2.2 2.6 2.9 3.2
AlMg3 2.5 1.6 2.0 2.4 2.4 2.8 3.2 3.6 4.0
3 1.8 2.3 2.8 2.9 3.3 3.8 4.3 4.7
2 4.9 5.9 7.0 7.1 8.0 9.0 10.1 11.1
2.5 6.0 7.3 8.6 8.9 9.9 11.2 12.5 13.8
753 7.1 8.7 10.3 10.5 11.8 13.4 14.9 16.5
2 1.5 2.0 2.4 2.5 2.8 3.1 3.5 3.8
AlMg3 2.5 2.1 2.5 3.0 3.0 3.4 3.9 4.3 4.8
3 2.5 3.0 3.5 3.6 4.1 4.6 5.1 5.7
StW 22hot galv.
StW 22hot galv.
StW 22hot galv.
StW 22hot galv.
Spiral-staircase steps with step cylinder
Material Sheet Mass in kgthickness D for stairway radius in mmmm
800 900 1,000 1,200
StW 22 2.5 9.5 10.5 13.0 14.5
hot galv.
StW 22hot galv.
StW 22hot galv.
Steps
Width Material Weight kg/m[B] for length [L] in mmmm
600 800 1,000 1,200 1,500
240 DD11 2.0 4.7 5.8 7.0 8.2 –
270(StW 22
2.0 5.0 6.3 7.6 8.9 –
300hot galv.)
2.0 – 6.8 8.1 9.5* 17.3**
Sheet thickness: * 2.5 mm** 3.0 mm
Sheetthick-ness Dmm
To lerances
27
Maximum deviations for longitudinal dimensions, apart from chamfered edges Values in mm DIN ISO 2768
Tolerance class Maximum deviation for reference size ranges
0.5 > 3 > 6 > 30 > 120 > 400 > 1,000 > 2,000
Code Designation < 3 < 6 < 30 < 120 < 400 < 1,000 < 2,000 < 4,000
f fine ± 0.05 ± 0.05 ± 0.1 ± 0.15 ± 0.2 ± 0.3 ± 0.5 –
m medium ± 0.1 ± 0.1 ± 0.2 ± 0.3 ± 0.5 ± 0.8 ± 1.2 ± 2
c coarse ± 0.2 ± 0.3 ± 0.5 ± 0.8 ± 1.2 ± 2 ± 3 ± 4
v very coarse – ± 0.5 ± 1 ± 1.5 ± 2.5 ± 4 ± 6 ± 8
Maximum deviations for chamfered edges (radius of curvature and height of chamfer) Values in mm
Tolerance class Maximum deviations for reference size ranges
Code Designation 0.5 < 3 > 3 < 6 > 6
f fine
± 0.2 ± 0.5 ± 1
m medium
c coarse
± 0.4 ± 1 ± 2
v very coarse
Maximum deviations for angles
Tolerance class Maximum deviations for length ranges (in mm)
for the shorter leg of the angle concerned
Code Designation < 10 > 10 > 50 > 120 > 400
< 50 < 120 < 400
f fine
± 1° ± 0° 30’ ± 0° 20’ ± 0° 10’ ± 0° 5’
m medium
c coarse ± 1° 30’ ± 1° ± 0° 30’ ± 0° 15’ ± 0° 10’
v very coarse ± 3° ± 2° ± 1° ± 0° 30’ ± 0° 20’
2030°
75
42
0
40
R 765R 800
Front edge of step
Division 16Division 15Division 14
34
0.4
31
8.1
29
8.5
22
.5°
24°
25
.7°
11050
i 127x5
R 900R 865
Front edge of step
Division 16Division 15
44
2.5
40
35
9.7
33
7.5
22
.5°
24°
11050
i 127
S
37
6.5
33
5.1
R 1000R 965
Front edge of step
Division 16Division 18
46
0
40
22
.5°
13360
i 152.4x5
20°
Front edge of step
Division 14Division 15
40
24°
13360
i 152.4x5
25
.7°
R 1000R 965
42
9.4
40
1.3 5
12
40
4.6
36
4.5
Front edge of step
Division 20Division 18
18°
13360
i 152.4
20°
R 1165R 1200
40
48
8
28
D Z
R
S
R
75
Graepel-Stabil
DD11 (StW 22)
With step cylinder
Material Stairway Cylinder ø Outer Ø of Steps/radius D in mm centering winding
pillarR in mm Outer Inner Z in mm N o. n
StW 22 800 127.0 117.0 114.3 14.15.16hot-dip gal- 900 127.0 117.0 114.3 15.16 vanised to 1.000 152.4 142.4 139.7 14.15.16 DIN 50976 182.5 mmthick 1.200 152.4 142.4 139.7 18.20.22
End cylinder with cover and bolt as well as landings available on request
Sp i ra l s ta i rcases
All standard steps in stock are designed for 5 kN/m2 evenly distributed weight
and 1.5 kN over 200 x 200 mm single load.
The steps shown are for left-hand staircases (right-hand = mirror image).
With step cylinder
These steps are fitted with a welded cylinder for pushing onto a centre pillar.
The step pin and bolt are also supplied. When ordering, always state the
dimension ”S” (rise dimension). The perforation or stamping is always
parallel to the step edge.
For welding
These steps can be welded to a centering pillar or step pillar. The material is
steel and is supplied in the raw state. The perforation or stamping is always
parallel to the step edge. The corners are not welded.
Graepel-Round S
DD11 (StW 22)
Graepel-Round N
DD11 (StW 22)
Graepel
Rubber-Stud
DD11 (StW 22)
Please refer to the Spiral Staircases brochure for details of the complete range of steps for spiral staircases.
Safety rungs for ladders
29
LO/6 (30 mm tread depth to DIN)Perforation Ø 6 mm, pitch 21 mm, standard stagger;fixed size 310 mm, with clearance between ladderbars 300 mm; fixed size 2,000 mm not including clearance
L
L
55
30 L
L
35
30
LO/RSPerforation as for Graepel-Round S; the front side is bevelled inwards by 12 mm; fixed size 495 mm, withclearance between ladder bars (1.5" tubing) 452 mm;for 500 mm bar central clearance to DIN 24 532;stock length 1,980 mm not including clearance
L
L
30
60
LO/GSPerforation as for Graepel-Stabil; the front side is bevelled inwards by 7 mm; fixed size 500 mm, withclearance between ladder bars (1.5" tubing) 452 mm;for 500 mm bar central clearance to DIN 24 532
LO/K (closed surface)Perforation as for Graepel-Cone; the front side is bevelled inwards by 12 mm; fixed size 471 mm, with clearance between ladder bars 480 mm
L
22,5
L30
LO/6K (30 mm tread depth to DIN)Perforation Ø 6 mm, pitch 21 mm, standard stagger; both sides are bevelled inwards by 8 mm;fixed size 318 mm, with clearance between ladderbars 300 mm; fixed size 2,000 mm not including clearance
LO/30 (30 mm tread depth to DIN)Perforation as for Graepel-Round S; the front side is bevelled inwards by 10 mm; fixed size 325 mm, with clearance between ladder bars 300 mm
L
L
30
30
LO/6 U (30 mm edge depth to DIN) With unperforated front edge. Holes Ø 6 mm, spacing 21 mm, normal offset; fixed size 310 mm with notch for 300 mm beam clearance; bar Ø 27 mm;fixed size 2,000 mm without notch
L
L
30
30L
L
30
26
LO/8Perforation Ø 8 mm, pitch 15 mm, standard stagger;fixed size 306 mm, with clearance between ladderbars 300 mm; stock length 1,950 mm not including clearance
L
L
30
64
26
30
S ta i rway s tep
All steps have a minimum load-bearing capacity of 1.5 kN single load at the centre of the front edge.
For balanced assembly of the steps cut to size from piece material, please see ”Fastening technology”.
B =
240/270/300
H =
62 55
17
D
N =
120/150/18035
4014 ø LL 14 x 34
B
H
55
17
D
N35
4014 ø LL 14 x 34
Graepel-Cone
DD11 (StW 22)
Stainless steel
with perforated
step edge
Graepel-Cone
DD11 (StW 22)
Hot-dip galvanised
Graepel-
Rubber Stud
DD11 (StW 22)
Hot-dip galvanised
Rubber studs supplied
loose (rod or black)
Graepel-Stabil
DD11 (StW 22)
Hot-dip galvanised
Graepel-Round K
DD11 (StW 22)
Hot-dip galvanised
Graepel-Round S
DD11 (StW 22)
Hot-dip galvanised
with perforated
step edge
Graepel-Round N
DD11 (StW 22)
Hot-dip galvanised
All standard steps in stock are designed for 5 kN/m2 evenly distributed weight and 1.5 kN over 200 x 200 mm single load.
31
Name Material
Cast steel S
galvanised with
countersunk hole
Cast steel R
galvanised with
round hole
Plastic
with countersunk hole
Olive for Graepel-Stabil S Cast steel S
galvanised with
countersunk hole
Metal disk Cast steel
for Graepel-Round S galvanised with
countersunk hole
Star Plastic
for Graepel-Round S with countersunk hole
Spacer Steel, coil galvanised
x = for grating height 40 mm
x = for grating height 50 mm
x = for grating height 75 mm
x = for grating height 100 mm
Connector plate Steel, coil galvanised
H = 40 mm
H = 50 mm
H = 75 mm
Lengthwise connector Steel, hot-dip galvanised
H = 33 mm
H = 43 mm
H = 68 mm
H = 93 mm
Dimensions
Stabil H = 40 mm
Olive H = 50 mm
H = 75 mm
Round/ H = 40 mm
Round S H = 50 mm
Disk H = 75 mm
Steel,
galvanised.
Select olive or
disk and bolt
Steel,
galvanised
H 90 – 120
H 121 – 130
H 131 – 140
H 141 – 160
Steel,
galvanised
H 121 – 130
H 131 – 140
For grating
A N width height
115 060 120 40
145 090 150 40
175 090 180 40
195 110 200 40
235 120 240 40
235 120 240 75
245 130 250 40
245 130 250 75
295 180 300 40
295 180 300 75
355 240 360 40
415 300 420 40
475 360 480 40
Stai
nle
ss s
teel
Name
C-clip-steel, galvanised-stainless steel1 set: clip withhousing, olive(or disk andbolt)
Claw
Base unit
Countersunk bolts
DIN 965
M8 x 40
M8 x 50
M8 x 60
M8 x 80
Countersunk bolts
DIN 933
M8 x 50
M8 x 60
Compensating angle
Compensates dimensional fluctuations
in grating length up to 30 mm.
1 set: 1 angle with 4 screws
(dimensions in mm).
For grating height 40 mm:
flat steel 35 x 3 mm.
For grating height 75 mm:
flat steel 60 x 5 mm.
Olive
for
Gra
epel
-St
abil
47
9 21
8
21
6
47
9
47
9 21
8
6108
108
725
25
8
x
130
30
H
300
H
20
H
90H
32A
N"
"
30
1030
Fas tening technology
Walk safe, s tand safe
The entire know-how
for safety underfoot.
Innovative and effective. A programme
full of ideas for safety underfoot
Uncompromising and competent wherever the
danger of slipping or skidding has to be reduced,
we are your contact partner. As specialists with a
worldwide reputation in ”underfoot safety” we
make products which contribute to safety at work
and accident prevention in day-to-day industrial
practice. Uncompromising and competent wher-
ever anti-skid surfaces are required.
More safety–fewer accidents
The idea behind our wide range of sheet-metal
gratings can be summed up in a few simple
words: ”more safety–fewer accidents”. Their
classification extends from ”extreme anti-skid”
to ”lounge quality”. Regardless of which of our
products you choose, you are guaranteed the
highest standard of quality and an unequalled
degree of safety.
Economical and individual
A high standard of underfoot safety does not have
to be expensive. We produce profiled sheet-metal
gratings by the metre, for example, scaffolding
planks, steps and flooring. Or pre-assembled parts
such as stepboards and access ladders for trucks
and machinery, to mention just two other appli-
cations. Regardless of the problem you have to
solve, our practical and original range of products
ensures that you can stand and walk in perfect
safety while working for the success of your com-
pany.
Graepel-STUV GmbHWaldemar-Estel-Strasse 7D-39615 Seehausen/AltmarkFon +49 (0) 39 38 6 / 27-0Fax +49 (0) 39 38 6 / 27-1 80www.graepel-stuv.de, [email protected]
Edition 01/2003Subject to change without notice B
/010
2/L3
358
2/..
07/
GB