Product Description Specifications 20 ton Overhead Crane

1.Carbon steel of Fe37 or Fe52

2.ISO9001quality certificate

3.Low building clearance

4.Light weight

20 ton overhead crane with Electric Hoist 20 ton overhead crane In General 1.Compact structure, low building clearance  2.Maximize lifting height to make full use of workshop. 3.Light weight, and small wheel loading. 20 ton overhead crane Mechanism Parts 1.Double main girder, welding box beam, camber accord with National Standard. 2.carbon steel with high quality of Q235B or Q345B(as Fe37 or Fe52) 3.The main girder is connected by strength bolt 4.Metal structure use steel pretreatment process 5.Weld joint is tested by X ray or ultrasonic examination 20 ton overhead crane Trolley 1.Rail is P type or square steel rail;  2.Consisted with motor, reducer, trolley shelf and hoist. 3.Trolley traveling is trinity structure;  4.Lifting mechanism is similar with hoist's 20 ton overhead crane Crane Traveling 1.Ground control use soft starting motor with small current, no axial channeling move 2.Seldom fault, can frequently starting, save energy; 3.Cabin control use ZDR series cone-shape rotor, three-phase motor or electromagnetic braking motor; 4.High mechanical strength, compact structure, braking torque can be adjusted 20 ton overhead crane Electrical Part 1.Safe touch line conductive rate is high, small pressure, sliding fast. 2.Electrical box wired in good order, easy to maintain and repair. 3.Trolley running power is supplied by flat cable, smooth and aesthetic  20 ton overhead crane Protection Device 1.Outdoor cranes are equipped with lifting mechanism, electrical control box and rainproof devices; 2.Trolley matched with stop block and light&power switch 3.current protection , anti-collision device, sound-light alarm. 20 ton overhead crane Operation 1.Both ground control and cabin control 2.Special cabin for double-girder with hoist or capsule cabin 3.cam controller, Linkage controller  

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