Capacity: from 300 Kg to 25000 Kg;
Shell: light aluminum alloy shell shall be adopted which is light but hard and fit for use in the terrible work environment with a high heat dissipation rate and all tightness design.
Inverse phase sequence protecting device: It is the special electrical installation which control the circuit not to work in case of wiring error in the power supply.
Limit switch: It is installed where the weight is lifted on and off to make the motor to stop automatically so as to prohibit the chains from exceeding for safety.
24V/36V device:It is used to prohibit the emergencies from occurring in case of leakage in the switch.
Side magnetic braking device: This device shall realize the instant brake in case of power dump.
Chain: It shall adopt the imported FEC80 ultra heat-treatable aluminum alloy chain.

TECHNICAL PARAMETER:
Hoisting capacity: 7.5T
Lifting height:3/9m
Lifting speed:1.9m/min
Operating speed:18.7m/min
LIFTING MOTOR:
Power: 3.0Kw
Rotate speed: 1440 r/min
Phases: 3
Voltage: 380/220 V
Frequency: 50/60 Hz/s
OPERATNG MOTOR:
Power: 0.75Kw
Rotate speed: 1440 r/min
Phases: 3
Voltage: 380/220V
Frequency: 50/60Hz/s
Girder orbit: 150-300 mm