Shell:shell is lightweight and strong, cooling rate,the sealed design suitable for use in the environment of poor operation conditions.
Reverse phase protection device:a special electrical device,the control circuit does not work when the power supply wiring error.
Limit switch:hanging heavy objects hanging under has a limit switch device, the motor automatically stops to prevent the chain beyond to ensure safety.
The 24v/36v/48v devices:when they are in operation in case of leakage swith to prevent accidents.
Braking device:this device can be achieved instantly when the power is cut off the brake.
Chain bag:lightweight, attractive and durable 
Chain:imported FEC80 super heat alloy steel chain