Light duty electric hoist double beam bridge Cranes

  Overview  
*According to JB/T 3695 designing and manufacturing;
*It is used with fixed hoists like CD1 or MD1 type;
*Widely used in machinery fabrication, metallurgical plant auxiliary workshop, storage, stock ground, and power station;
*It is also can be used as regular double-girder overhead crane in textile industry or food industry.But it is forbided to use in inflammable, explosive or erosion environment.

  In General  
*Compact instructure, low building clearance;
*Maximize lifting height to make full use of workshop.
*Light body, and small wheel loading;
*Variable frequency speed regulation, stable travelling.

 Mechanism Parts 
*Double main girder, welding box beam, camber accord with National Standard;
*It is made of carbon steel with high quality of Q235B or Q345B(as Fe37 or Fe52);
*The main girder is connected by strength bolt, it can be made as centre-rail or inclined to one side;
*Metal structure use steel pretreatment process;
*Weld joint between girder cover and web is tested by X ray or ultrasonic examination;
*Crane wheel, trolley wheel and brake wheel are treated by untermediate frequency, power frequency;
*Leeb hardness tester control heat treatment hardness.

 Trolley 
*Compact structure, small size and light;
*Rail is P type or square steel rail;
Consisted with motor, reducer, trolley shelf and hoist;
*Trolley travelling is trinity structure;
*Lifitng mechanism is similar with hoist's.

 Crane Travelling 
*Ground control use soft starting motor with small current, no axial channeling move ;
*Seldom fault, can frequency starting, save energy;
*Cabin control use ZDR series cone-shape rotor, three-phase motor or electromagnetic braking mortor;
*High mechanical strength, compact structure, braking torque can be adjusted;
*Starting stablely, safe braking;
*Convenient to control, use and maintance;
*Use QS trinity drive and doubel-girder hoist special wheel
*Simple device and compact structure.

 Electrical Part 
*Safe touch line conductive rate is high, small pressure, sliding fast;
*Electrical wiring box neat, orderly, easy to maintain and repair;
*Trolley running power is supplied by flat cable, smooth and aesthetic.

 Protection Device 
*Outdoor cranes are equipped with lifting mechanism; electrical control box and rainproof devices;
*Trolley matched with stop block and light&power switch
*current protection , anti-collision device, sound-light alarm.

 Operation 
*Both ground control and cabin control;
*Special cabin for double-girder with hoist or capsule
cabin;
*Open version, comfortable operating;
*cam controller, linkage controller;
*Cabin has open or close style; installed on left or right;
*Door direction has end open, side open and top open;
*User can choose according to your need.