round slings

Round Slings

Secure SolutionsNISKU 505-11 Ave., Nisku, AB T9E 7N5 Ph: (780) 955 7111 Fx: (780) 955 7199

ROUND SLINGSroundsling, crane hook or other attachments.Polyester Roundslings

A polyester roundsling, also referred to as a tubular sling, Polyester roundslings protective covers that are cut, is composed of a continuous load bearing core(s) made exposing the load bearing yarn, shall be removed from from synthetic polyester yarns, not woven, fully enclosed service.in a protective cover(s), with or without fitting(s) or Consideration shall be given to the fitting’s radius in coupling component(s) used for general lifting purposes. that it shall be compatible to that of the crane hook on

which it is to be used.Safety is the paramount consideration involved in the

Consideration shall be given to the distribution of load use of any polyester roundsling. The proper polyester weight on a multi-legged lift.roundsling must be chosen for the job. Riggers must

know the proper hitch to use, where and how to attach Environmental Considerationspolyester roundslings to the load. Therefore, riggers When not in use, polyester roundslings should be stored shall acquire the knowledge, not only of the different type in a cool, dry and dark place to prevent loss of strength hitches, but the way loads can be expected to react when from exposure to ultra-violet rays.the lift is made.Chemically active environments can affect the strength of polyester roundslings in varying degrees ranging from Polyester Roundsling Identificationlittle to total degradation. The polyester roundsling EACH POLYESTER ROUNDSLING SHALL BE manufacturer, or qualified person, should be consulted DURABLY MARKED OR LABELED SHOWING:before roundslings are used in a chemically active

A. Name or trademark or manufacturer environment.B. Manufacturer’s code or stock number

AcidC. Rated capacities for the three basic hitches (vertical,

1. Polyester is resistant to some acids, but is subject to choker, vertical basket).degradation, ranging from little to moderate in some acids.

D. Polyester core - if cover(s) is of a different fiber type, 2. Each application shall be evaluated, taking into both fiber types shall be identified.consideration the following:

E. Length (reach) - bearing point to bearing point a. type of acidF. Sling identification should be maintained by the user b. exposure conditionsso as to be legible during the life of the sling.

Alkalis

1. Polyester is subject to degradation in alkalis, ranging RECOMMENDED OPERATING PRACTICESfrom little to total degradation.

Mechanical Considerations 2. Each application shall be evaluated, taking into consideration the following:Polyester roundslings shall always be protected from

a. type of alkalibeing cut by corners, edges and protrusions.b. exposure conditions

Determine the weight of the load. Polyester roundslings Polyester roundslings shall not be used at temperatures in shall not be loaded in excess of their rated capacity.

Oexcess of 194 degrees F (90 C), or at temperatures below Consideration shall be given to the angle from the Ominus 40 degrees F (-40 C).horizontal (roundsling to load angle) which affected

rated capaities. Polyester roundslings incorporating aluminum fittings shall not be used where fumes, vapors, sprays, mists or Select a proper polyester roundsling having suitable liquids of alkalis and/or acids are present, unless the characteristics for the type of load, hitch and compatibility of these materials is verified by the environment.manufacturer or a qualified person.Polyester roundslings with fittings that are used in a

choker hitch shall be of sufficient length to assure that the choking action is on the polyesrer roundsling and POLYESTER ROUNDSLING HITCHESnever on the fitting.

Loads vary in physical dimension, shape and weight. Polyester roundslings used in a basket hitch shall have Where and how to attach the roundsling is important to a the load balanced to prevent slippage. rigger.Polyester roundslings shall not be twisted or tied into Hitch: Choker - A method of rigging in which the polyester knots, or joined by knotting. roundsling is passed around the load, then through itself,

then attached to the lifting device.Polyester roundslings should not be pulled from under loads when the load is resting on the sling.

Polyester roundslings shall be used with lifting devices that are compatible with roundslings.

Do not drop polyester roundslings equipped with metal fittings.

The opening in fittings shall be the proper shape and size to ensure that the fitting will seat properly on the poyester

Secure Solutions NISKU 505-11 Ave., Nisku, AB T9E 7N5 Ph: (780) 955 7111 Fx: (780) 955 7199

ROUND SLINGSHitch: Double Wrapped Choker - A method of rigging WARNING! Rated capacities for Multi-Leg Bridle in which the polyester roundsling is passed around the assemblies are based on an assumed set of ideal load twice, then through itself, then attached to the conditions as follows:lifting device. 1. The load is evenly distributed on all legs.

2. All legs are the same length.

3. All legs are used at the same horizontal angle.

If the conditions of the lift vary from those above, the rated capacity must be recalculated.

BASIC RULES OF HITCHING

Hitch: Basket - A method of rigging in which the polyester roundsling is passed around the load and both Rated Capacity: Be sure the polyester roundsling you ends are attached to the lifting device. intend to use is strong enough for the job (refer to

identification tag on the polyester roundsling).

WARNING! Rated capacities are affected by the WARNING! Rated capacities are affected by the Angle Angle of Lift (roundsling to load angle) when of Lift (roundsling to load angle) when used in multi-polyester roundslings are used in multi-legged or legged polyester roundslings or basket hitches. To basket hitches. To determine the actual polyester determine the actual polyester roundsling capacity at roundsling capacity at a given angle of lift, multiply a given Angle of Lift, multiply the original polyester the original polyester roundsling rating by the roundsling rating by the appropriate loss factor.appropriate loss factor.

Control and Balance: Use a hitch that will keep the load Hitch: Vertical - A method of rigging in which the load is under control at all times and be sure the lifting device is attached to one end of the polyester roundsling and the directly over the center of gravity (CG).other end of the polyester roundsling is attached to the lifting device.

Prevent Damage: ROUNDSLINGS SHALL ALWAYS BE PROTECTED FROM BEING CUT OR DAMAGED BY CORNERS, EDGES OR PROTRUSIONS.

Multi-Leg Polyester Roundsling Bridle - A method of Lifting Load: Lift load carefully, accelerating smoothly. rigging in which the load is attached to two or more legs of Avoid shock loading.a bridle assembly. The assembly can consist of 2, 3, 4 or Conditions of Polyester Roundslings: Inspect more legs. roundslings and their parts carefully before each lift and at

regular intervals.

Regulations: Polyester roundslings shall be used in accordance with the federal, state, provincial, local and industry regulations applicable to the lift.

Use of Lifting Lugs / Eye Bolts: Lifting lugs/ete bolts shall be used in accordance with the lug/eye bolt manufacturer’s recommendations. Many loads are

equipped with lifting lugs for each attachment of the Basket Hitches - Basket hitches, whether single or polyester roundsling. Make sure pull is transmitted to double, may be used successfully in a variety of them straight along the axis of the shank unless applications. However, they have inherent limitations.prescribed otherwise by the manufacturer. However, if “hoist rings” are utilized, the pull does not have to be along the axis.

PROPER HITCHING METHODS

Single Leg Hitches - Single leg hitches such as the single leg vertical and the single choker hitch may not provide optimum control over the load. In these hitches only one polyester roundsling supports the load.

In a single choker hitch, there is always a part of the polyester roundsling at the choke point not in contact with the bundle being lifted.

WARNING! Angles of less than 60 degrees can cause polyester roundslings to slip under the load, creating an imbalance condition.

Turning Hitch - When turning a load, use a choker hitch. If the turning hitch is made up wrong, the turning action of the load will loosen the hitch, causing it to slip.Double Wrap Choker Hitch - The double wrap hitch or

the double wrap choker hitch provides full contact with the load.

WARNING! No single polyester roundsling hitch shall ever be used to lift and transport a lift load that is not balanced.

WARNING! A polyester roundsling shall not be used in basket hitch for turning a load.


ROUND SLINGS

RIGHT WAYFigure 10

WRONG WAYFigure 11

RIGHT WAYFigure 12

WRONG WAYFigure 13

Polyester Round Slings

ConstructionRound Slings are constructed form a multiple of high tenacity polyester yarns in an endless or continuous loop. These load-bearing yarns are protected by two woven polyester jackets. The polyester jackets act as a buffer between the load and the polyester yarn. Each sling has a tag permanently attached. This tag contains load capacities and basic safeguard principles for safer lifting. Sleeves are to be used when lifting sharp edged loads for even better resistance to cutting. The sleeve is sewn around the cover of the round sling so that it can be positioned to the area where it is required.

Features- The most flexible sling available. This sling conforms to the

load extremely well and provides the choker hold.- Hook and load contact points can be continually rotated to

extend the service life of the sling.- Longer sling life means cost reduction in sling purchases.- The load bearing fiber never comes into contact with the load.

There is no wear to the inner fibers; the protective cover remains intact.

- Protection to the load from sling damage.- Seamless covers no edges to wear out.- Wide variety of sling lengths and load capacities.- Adapts to all types, sizes and load configurations.- Lightweight, easy to rig, store and clean.- Excellent resistance to ultra-violet light, rot and mildew.- No loss of strength in water.

O- Only 3% elongation. Maximum temperature exposure 180 F- Reduces the need for wear pads.- No metal parts to rust.

Operating Practices for Synthetic Slings- Inspect slings for damage and defects prior to each use.- Determine that the weight of the load is within the rated capacity of the sling.- Slings shall not be shortened or lengthened by knotting or other unapproved methods.- Damaged slings shall not be used.- Slings shall be hitched in manner providing control of the load. - Sharp edges in contact with slings should be padded.- Keep all portions of the human body from between the sling and the load, and from between the sling and lifting hook.- Personnel should stand clear of the suspended load.- Personnel should not ride the sling or load.- Shock loading should be avoided.- Slings should not be pulled from under a load when the load is resting on the slings.- Slings should be stored in an area where they will not be subjected to mechanical damage, moisture, extreme heat or

ultraviolet light.- Twisting of slings shall be avoided.- Loads applied to the hook should be entered in the base of the hook to prevent loading on the hook.- Before lifting, make certain the sling, attachments or load shall not snag. Personnel shall be continuously alert to

avoid snagging or bumping.- In a basket hitch, the lifting hook should be above the center of gravity and the load balance to prevent slippage out

of the sling.- When making a multiple leg lift, the capacity rating of each sling must be downgraded in accordance with the Effect

Angle Chart.- Slings should not be dragged on the floor or over an abrasive surface.

O- Nylon or polyester slings shall not be used at temperatures in excess of 180 F.- Remove round slings from service when inner load bearing fibers are exposed.- Use color-coded round slings to reduce the chances of overloading.

Secure Solutions NISKU 505-11 Ave., Nisku, AB T9E 7N5 Ph: (780) 955 7111 Fx: (780) 955 7199

ROUND SLINGS

ROUND SLINGS

Polyester Round SlingsRated Capacity Chart

WARNING:MAXIMUM RATED CAPACITIES FOR NEW SLINGS. DO NOT EXCEED.

5,2006,90010,30015,50020,60024,10029,30039,50044,70055,00068,80092,900117,000155,000

4,2005,6008,40012,60016,80019,60023,80032,20036,40044,80056,00075,60095,200126,000

0.750.800.901.001.251.301.601.651.752.152.453.003.253.75

0.250.350.400.500.750.850.951.251.451.752.252.753.604.10

CodeNumber Color Vertical Choker

O90 Basket

O60 Basket

O45 Basket

Approx.DiameterInches

Approx.Weight/Ft.in Pounds

SL-30SL-40SL-60SL-90SL-120SL-140SL-170SL-230SL-260SL-320SL-400SL-540SL-680SL-900

PURPLEBLACK

BLACK

GREENYELLOWTANREDORANGE

ORANGE

ORANGE

BLUE

GREY

BROWN OLIVE

3,0004,0006,0009,00012,00014,00017,00023,00026,00032,00040,00054,00068,00090,000

2,4003,2004,8007,2009,60011,20013,60018,40020,80025,60032,00043,20054,40072,000

6,0008,00012,00018,00024,00028,00034,00046,00052,00064,00080,000108,000136,000180,000


EASY-SpectEASY-Spect

NOW... YOU SEE IT!NOW... YOU SEE IT!

INSPECTABLE

ROUND SLINGS

SAFE TO USE

TAKE OUT OF SERVICE

üFully transparent Polyester cover to inspect load bearing yarns

üPTFE (Polytetrafluouroethylene) finish on cover promotes removal of dirt, grease and grime

üBreathable cover with hole opening of 0.004 sq. Inch. improve resistance to mildew & rot

üSnag resistant weave with coefficient of friction better than Polyester and Nylon tubes

üWeight of Easy-Spect cover is less than opaque multi filament covers making for a lighter sling

üElongation 3%A round sling with a transparent jacket that enables easy inspection for safe use of the sling.

Abrasion - Surface resistance comparable To Polyester and nylon tubulars

After runnin 2500 cycles on the Hex Bar Abra-sion Test per Federal Std-191 Method 5309

Transparent Mono Filament Tubular

Pigment Dyed Grey - Polyester

Pigment Dyed Grey - Nylon

Round SlingsRound Slings

INSPECTABLE ROUND SLINGS


WARNING MAXIMUM RATED CAPACITIES FOR NEW SLINGS. DO NOT EXCEED

Easy-Spect slings meet specifications of theWSTDA(Web Sling & Tie Down Association), ASME (American Society of Mechanical Engineers ) andthe Cordage Institute standard for round slings

ES 260

ES 320

ES 400

ES 540

ES 680

ES 900

Clear

Clear

Clear

Clear

Clear

Clear

26,000

32,000

40,000

54,000

68,000

90,000

20,800

25,600

32,000

43,200

54,400

72,000

52,000

64,000

80,000

108,000

136,000

180,000

44,700

55,000

68,800

92,900

117,000

155,000

36,400

44,800

56,000

75,600

95,200

126,000

1.75

2.15

2.45

3.00

3.25

3.75

CODENUMBER

COLOUR VERTICAL CHOKER 90°BASKET

60°BASKET

45°BASKET

APPROX.DIA.

INCHES

APPROX.WEIGHT/FT.IN POUNDS

ES 30

ES 40

ES 60

ES 90

ES 120

ES 140

ES 170

ES 230

Clear

Clear

Clear

Clear

Clear

Clear

Clear

Clear

3,000

4,000

6,000

9,000

12,000

14,000

17,000

23,000

2,400

3,200

4,800

7,200

9,600

11,200

13,600

18,400

6,000

8,000

12,000

18,000

24,000

28,000

34,000

46,000

5,200

6,900

10,300

15,500

20,600

24,100

29,300

39,500

4,200

5,600

8,400

12,600

16,800

19,600

23,800

32,200

.75

.80

.90

1.00

1.25

1.30

1.60

1.65

.25

.35

.40

.50

.75

.85

.95

1.25

1.45

1.75

2.25

2.75

3.60

4.10

1.38

1.50

1.62

1.88

2.12

2.50

.50

.50

.62

.75

.88

1.00

1.12

1.25

.62

.62

.88

1.00

1.25

1.38

1.62

1.75

1.88

2.00

2.38

2.75

3.00

3.50

MIN. Connection Hardware ThicknessVertical or Choker(Inches)

MIN. Connection Hardware Thickness

Basket(Inches)

RATED CAPACITY IN POUNDS

FULLY INSPECTABLE ROUND SLINGS


INSPECTION CRITERIA!INSPECTION CRITERIA!

SAFE TO USE

4 If the sling identification tag is missing or illegible

4 Both outer covers are ripped, and the yarns are exposed

4 The loadbearing yarns are cut or bunched

4 Melting, charring, or weld spatter on any part of the sling

4 Acid or alkali burns of the sling

4 Holes, tears, cuts, embedded particles, or excessive abrasive wear

4 Slings that are knotted

4 Any conditions that may cause doubt, as to the strength of the sling

EASY-SpectEASY-SpectRound SlingsRound Slings

An Easy-Spect Sling shall be removed if any of the following is visible

Yarns are bunched Yarns are exposed

TYPE OF INSPECTIONa. Initial Inspection - Before any EASY-SPECT SUPER SLINGER is placed into service it shall be inspected, by a designated person, to ensure that the correct sling is being used. It should be determined that the sling meets the requirements of the specification.

b. Frequent Inspection - This inspection shall be made by the user or other designated personnel each time the EASY -SPECT SUPER SLINGER is used (records not required). The user is visually looking for any of the signs listed above.

c. Periodic Inspection - This inspection shall be conducted by Sling Tech Inc. The EASY-SPECT SUPER SLINGER shall be returned to Sling Tech for Visual inspection, and Proof Testing to twice the Working Load. Periodic inspections should be conducted at least once annually.

Repairs to the protective covers, of EASY-SPECT SUPER SLINGERS, shall be done only by the original manufacturer or their appointed agent. All repaired EASY-SPECT SUPER SLINGERS shall be proof tested to a minimum of two (2) times the rated capacity before being put back into service. Certification of proof test will be provided. All EASY-SPECT SUPER SLINGERS to go back into service will be tagged with Certified date.

Yarns & Cover in Good ConditionIllegible Tag

Repairs

INSPECTABLE ROUND SLINGS


round slings

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