In General
With its expertise on leading technologies, Dqcranes developed modular concepted NDH series Wire Rope Electric Hoist which has been certified with multiple patents. It adopts the trendy C-type design, rendering compact structure, smooth running, and precise positioning. Adopted various new technologies including inverter control braking energy recovery and safety monitory system. NDH Wire Rope Electric Hoist provides you with better logistics solution, assured reliability and safety for operation.
The lifting capacity of Dqcranes’ NDH series Wire Rope Electrical Hoist ranges from 1t to 20t. Depending on its structural layout, it can be grouped as fixed type, single girder suspension and double girder travelling types. By its applications, it can be categorized as general usage, dedicated clean room usage, explosion-proof, and the nuclear plant use. NDH Electric Hoists features compact and simple structures of module design with plenty of modular combinations. It deemed to be your ideal solutions for light, medium or heavy duty transportations and will surely satisfy your requirements under various working conditions.
Lifting motor
- Squirrel cage, double winding 4:1 variable pole two-speed motor
- Protection class IP55, insulation class F
- Continuity of power supply 60%ED
- Built-in thermistor overheat protection, optimized air-cooled
- Fully sealed drum
- The motor case is stamped from aluminum tube
Gearbox
- Fully sealed compact gearbox
- Gear material is chromium molybdenum nickel alloy, anti-wear bearings
- CNC Automatic gear machining center production, hardened surface (HRC60), after grinding treatment
- Semi-grease lubrication, maintenance-free
Brake
Electromagnetic disc self-adjusting brake, brake pads wear automatically compensation, when the brake pad thickness is not enough,it will have a alarm; normally use of brake pads life should not less than 100 million times, emergency braking is not less than 500 times.
Normally closed design, when it is power off ,the lifting mechanism is out of the braking state; to ensure safe dust, no asbestos friction plate friction contact area; brake torque adjustable, good heat dissipation.
Limit switch
Cam rotary limit switch 4 fully adjustable upper and lower limits; position accuracy, phase sequence control, first deceleration after the stop; deceleration operation to improve the brake life and safety.
Drum
Extra large reel diameter to extend the life of wire rope, heavy objects placed in a small wire rope with a fixture fixed, at least 2 turns of steel wire rope is fixed fixed bearings made of seamless steel pipe, and processing of high-strength galvanized rope rope rope.
Rope guide
High strength nylon rope guide, self-lubricating, small wear on the rope, long life, toughness and flexibility; high reliability and easy dis-assembly; even if the hook is reduced to the ground can also keep the rope tension.
Coupling
Gear coupling, material Fe52;
Hook
Hooks made of large diameter ductile iron pulley and hooks made of anti-wear roller bearings; hook can be rotated 360 degrees; equipped with spring compression of the safety buckle, can prevent slippage; hook forging steel for the modified steel 34CrMoV , T level, according to the standard DIN17200.
