●SheII: light aluminum alloy shell shall be adopted which is light but hard and fit for the use in the terrible work environment with a high heat dissipation rate and all tightness design.
●lnverse 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: The limit switch device 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.
●24V136V device: It is used to prohibit the emergencies from occurring in case of the leakage in the switch.
●Side magnetic braking device: This device shall realize the instant brake in case of the power dump.
●Chain bag: It shall be light, handsome and durable.
●Option: Chinese G80 chain or Japanese FEC G80 chain.
HHBDO2,2.5,03,05,7.5,1O double lifting speed is available.