9103796-105cn_techn descr sc 45

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  • Technical DescriptionALIMAK SC 45

    Construction Hoists

    YOUR HOIST HAS:

    Manufacturing No.: Year: Part No. 9103796 - 1 05 CN2009 - 11 - 12

    If the bottom right corner of this book is cut, the book is only valid for illustrative use!

    This manual is only applicable if the manufacturing number indicated below corresponds to the manufacturing number stamped on the identificationsign of the equipment. Where there is a conflict contact your ALIMAK representative.

    BACK

    XXX Translation

  • Photographs and drawings are illustrative only and do not necessarily show the design of the products on the market at any given point in time.The products must be used in conformity with applicable practice and safety regulations. Specifications of the products and equipment

    presented herein are subject to change without notice.

  • CONTENTS

    ABCCDDEEFFGHI

    Text and illustrations by Hkan LindstrmCopyright Alimak AB, 2004. All rights reserved.

    TECHNICAL DESCRIPTION

    TECHNICAL DATA & SPECIFICATIONS

    IMPORTANT SAFETY INSTRUCTIONS

    OPERATING INSTRUCTIONS

    SERVICE AND MAINTENANCE

    ELECTRIC TROUBLESHOOTING

    FOUNDATION

    HOIST MAST

    PREPARATIONS BEFORE INSTALLATION

    INSTALLATION

    DISMANTLING

    See Maintenance Manual for chapters C, D, E and F.See Installation Manual for chapter K and L.Spare Parts Manual

  • TECHNICAL DESCRIPTION

    General ............................................................Regulations......................................................Foundation ......................................................Base frame.......................................................Ground enclosure ...........................................Hoist mast........................................................Car ...................................................................Drive unit.........................................................Cable guiding device ......................................Control systems...............................................Landing equipment ........................................Safety equipment ............................................Optional equipment........................................The purchasers / users own protective measures ................................Load signs........................................................

    A 1A 1A 1A 2A 2A 4A 6A 8A 11A 12A 14A 16A 18

    A 24 A 25

    ALIMAK 34936 - 1/01

    A 0

  • 2.0 m car base structure

    2.6 m car base structure

  • Technical descriptionGeneralThe ALIMAK SC 45 hoists are construction hoists forpersonnel and materials transport. Two car base structurescan be combined with different gate units and extensions to anumber of different car lengths up to maximum 3.2 m.Car width 1.4 m is fixed. The hoists have a lifting capacity of maximum 2000 kg up toa lifting height of 150 m.Lifting speed is 30 m/min. or 38 m/min., alt. 42 or maximum54 m/min. with VFC-operation. The ALIMAK SC 45 construction hoist can be set up withsingle or dual cars.The hoist is easily transported by truck, to and from theerection site and handled with forklift trucks or jib cranes onthe site.The ALIMAK SC 45 construction hoist is a part of theALIMAK 45 access system and can be combined with otherproducts, i.e. platforms or materials hoists.

    RegulationsThe hoist and its mechanical and electrical components aredesigned and dimensioned to conform to operating condi-tions on contruction sites and fulfil demands according tolocal regulation. The hoists and its components have beenthoroughly tested and conform to one or several of thefollowing international/national standards.Necessary documents such as operators manual, wiringdiagrams, circuit diagrams and spare parts lists are deliveredwith the hoist.

    Foundation The foundation is a reinforced concrete slab and cast inplace in accordance with instructions given underPreparations before installation and Concrete slabdimensions in this manual. A transportable sheet steel foundation or a precast concreteslab can also be used.

    ALIMAK 34937 - 1/01 CN

    A 1

  • Base frameThe bottom mast section is bolted to the base frame, whichincorporates 2 buffer positions, channels for fork lifting and 4outriggers to support the enclosure. The hoist can be used freestanding, bolted to the transportablesheet steel foundation or the concrete slab. With an additional buffer support the base frame also incorpo-rates a dual car set up.

    A 3rd additional buffer spring is added for car load more than 1400 kg.

    A 2

    ALIMAK 34938 - 1/01 CN

  • Ground enclosureThe foundation is enclosed by 2000 mm high perforated steelsheet sections attached to the base frame. The enclosure is built in modules and can easily be adapted fordifferent lengths as well as twin car set ups. It can also bechanged so that another ALIMAK SC 45 modular systemhoist/ platform can operate on the other side of the mast.

    The enclosure is provided with one or two double-swingmechanically locked and electrically monitored door(s).Two entrance doors allow entrance to the car from 2 differentdirections.

    ALIMAK 34939 - 1/01 CN

    A 3

  • Hoist mastThe square mast c/c 450 x 450 mm is the mainstay of theALIMAK 45 access system. The mast is constructed of tubesand frames of high tensile steel and fabricated in lenghts of1508 mm. Each section is provided with one or two boltedrack(s) module 5 and the sections are bolted together with boltsand nuts.The four guiding tubes and possibilities with two racks givedual car set up advantages. The ties are attached to the frames of the mast sections or alt. tothe rear mast tubes. The other end to special brackets attachedto the wall. The tie length is telescopic adjustable withindifferent intervals. The ties can also be inclined from thehorizontal. Specifications for each particular mast tie can befound in chapter H.Mast sections and mast ties are hot dipped galvanized with theexception of the mast section rack.

    ALIMAK 34940 - 1/04

    Corresponding wallbracket can be installedeither on vault/slab ...

    a 138

    ... or againstfacade.

    a 139a 67

    a 64

    A 4

  • The hoist stops automatically at the top and bottom by means ofcams attached to the hoist mast. The cams activate the normallimit switches located on the hoist car. Additionally there is afinal limit switch activated by separate cams at the top andbottom of the hoistway. The final limit switch controls a main contactor, which switchesoff all three phases of the main power supply to the drivemotor(s).

    ALIMAK 34941 - 1/01

    A 5

    Normal upper &lower limit switch

    Final limitswitch up & down

    a 65

  • Car The car is sized to be suitable for ease of transport and isconstructed of high quality steel for strength and weightreduction. The car walls are constructed of perforated steelsheeting allowing light to enter and also give the operator aclear view of the hoistway. Individually adjustable ball bearing mounted guide rollerassemblies guide the car on the mast.Car consists of multi layer built-up car floor with fire resistantplastic material on galvanized steel sheet and aluminiumchecker plate on top. The car roof is constructed of aluminiumchecker plate.The car has mechanically locked and electrically monitoredvertical guided entrance and exit doors. The doors are modular for flexibility and in the ALIMAK 45 access program, 3 different car doors are available. Thelightweight moving door blades consist of aluminium profilesfor ease of operation.Normally the exit door is manufactured in two parts whereas theentrance door is in one part. (The entrance door is the onefacing the door of the ground enclosure).The exit door can also be combined with a folding load ramp.

    ALIMAK 34942 - 1/01 CN

    A 6

    Car exit door in two parts

    Car length extensions

    Closed solid wall

    Manual folding load ramp

    Full height entrance door

  • As the car roof serves as working platform during erection, it isprovided with safety railing. There is also a trapdoor in the roofand a ladder in the car to gain entry to the roof for erectionpurposes.

    Erection crane, optional equipmentNew type erection crane with manual adjustable jib equippedwith electric winch can be furnished.Payload capacity 250 kg = jib radius 570 1060 mm.Payload capacity 170 kg = jib radius 350 1700 mm.Weight approx. 40 kg, exclusive of electric winch.Electric winch, 3 phase 380 420V / 440 480V, weight 13 kg.

    Asymmetrical car configurationThe car length on each side of the mast shall be equal ifpossible. The difference may only be one extension section of0.1 m.Although the hoist is asymmetrical it should be consideredsymmetrical and the longer end dictating the maximumallowable load.

    A 7

    ALIMAK 34943 - 1/01 CN

    a 137

  • A 8

  • Drive unitA compact unit with one or two pinions engages the rack of themast. Each pinion is fitted to a high efficiency helical gear boxdriven by a flexible coupling, by a direct start or frequencycontrolled, squirrel cage induction motor with built-in electro-magnetic disc brake. The drive unit is connected to the car by pull rods.The connection between car and drive unit means that the hoistis prepared for an overload sensing system (OSS).

    The safety device is completely independent from the drive unit and installed inside the car with one pinion engaging therack. The device is actuated by a centrifugal weight and stopsthe hoist when the normal rated speed is exceeded.

    FC vs DOL Frequency controlled electric motors give: better (softer) riding comfort when starting and stopping. better stopping accuracy. less brake