The installation of these hoists is up to the application and the manufacturing facility where they will be used. They could be installed on electric single girder crane and double girder cranes, or it can be installed on a fixed overhead track.
Roller
The roller is made of high-quality seamless pipes and transmits power through spline. Its case is made of welded steel plate. This is the core part of the hoist.
Hook
The hook is forged and connected to the pulley assembly through a thrust ball bearing, so the hook can rotate freely.
Hooks no more than 5ton lifting capacity are of single-pulley style and above 10ton is double-pulley style.
Wire rope
Adopts high strength wire rope with a tensile strength of 1770 mpa, good safety performance, and long service life.
Rope guide
The standard rope guide is made of Q235b steel.
Hoisting motor
The hoisting motor with large tractive force is employed to comply with the frequent direct traveling during course of working discontinuously.
CD1 model wire rope electric hoist is equipped with ZD style single speed motor, while MD1 is equipped with ZDS style double speed motor.
The difference between the usual speed and the low speed is 10:1.
Reducer
The gear and axes are made of alloy steel or qualified carbon steel. All reducers adopt 3-level bevel gear. Proper heat treatment is conducted to ensure their reliability and service life. Finally, the box body and box cover are made of cast iron. Both are well shake-reducing and sealed tightly.
Electrical equipment
The electrical mechanism consists of the electric control box, limiter, button switch, connecting wire, etc.
According to the marked direction on the button switch, press the button correctly and control the hoist through the on-and-off of the relay in the control box. The operating voltage is usually 36V.
Safety protection
*The accurate gear drive limiter is used as an upper and lower limit, which can reliably cut off the power circuit if the hook moves to the upper or lower limit so as to stop the motor.
*Overload protector: the electric wire rope hoist is using an electronic overload protector so that the total lifting weight will not exceed the rated lifting weight; if the pulling force of steel rope is more than 105% of the rated capacity, the overload protector device would automatically cut off lifting loop.
*Emergency stop protection
* Over-heat protection of hoisting motor
* Over-current protection
*Phase protection
*Voltage lower protection
Control way:
Pendent line control
36V control voltage safety for human beings.
Easy to control, no additional driver necessary, operate following the traveling of hoist
Double step button with emergency to achieve safety stop
Connected with the electric trolley suspended under the trolley
Protection class IP54 IP55
Operation life not less than 500,000 times
Remote control
Taiwan Yuding or world-famous brand,
24V control voltage safety for human beings.
Remote distance: not less than 100 meters,
Easy to control, no additional driver necessary, to operate more freely on the ground
Tens of thousands of connection frequency points, non-interference with each other
Two steps push button or joystick station with emergency stop.
Protection class IP54 IP55
Operation life: not less than 500,000 times
Design standards
GB3811 GB6067 JB/T9008.1~9008.2
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