The motor power during the operation of an electric hoist is mainly related to the following factors:

Load weight and lifting speed

The motor power needs to match the load weight and lifting speed. For example, the motor power of a 25 ton electric hoist is 30 kilowatts, while the power of a 2-ton electric hoist is only 3 kilowatts. If the load is too heavy or the lifting speed is too fast, the motor needs to output more power to meet the demand; On the contrary, the power demand decreases under light load or low speed.

Motor quality and performance

The material and manufacturing process of the internal components of the motor (such as coils and bearings) directly affect the power output. High quality motors can provide stable rated power, while aging or inferior motors may run slowly or malfunction due to insufficient power. For example, coil burnout or bearing wear can significantly reduce motor efficiency.

Efficiency of transmission mechanism

Friction losses of transmission components such as gearboxes, gears, and chains can consume some of the motor power. The higher the transmission efficiency, the greater the proportion of motor power converted into effective lifting force. For example, tight gear meshing or damaged bearings can increase resistance, forcing the motor to output higher power to maintain operation.

Power supply stability

Voltage fluctuations or power outages can directly affect the actual power of the motor. When the voltage is insufficient, the motor speed decreases and the power output decreases, manifested as "lack of power" or abnormal speed; If the voltage is too high, it may cause the motor to overheat or be damaged.

environmental factors

High temperature, high humidity, or dusty environments can accelerate the aging of motors and transmission components, increasing power loss. For example, dust entering the interior of the motor may cause poor heat dissipation, thereby reducing power output; High temperature environments may increase the resistance of motor windings and decrease efficiency.

Design parameters and job levels

The design benchmark working level of electric hoists (such as M4, M5) determines the load duration and equivalent starting times per hour of the motor, which in turn affects the power configuration. For example, the higher the job level, the motor needs to have a higher power reserve to cope with frequent start stop and heavy load conditions.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment