1) Double limit switch device-

Avoid impacting the top limit ,carry out soft stop. Very convenient in adjusting location ,and the error is no more than 1.50CM with its compound driving structure

2) Chain-driving-

High gear train efficiency .With national patent on its anti-broken chain device organ ,secure but substantial. The organ inside will be locked within a second in case of sudden disconnection of electromotor driving chain occurs.

3) Brake device-

Adopt strengthened fibre .High frictionfactor ,low noise,low abrasion and stable braking performance under high speed running and heavy load.

4)Controlling part-

Adopt alternating current contactor. Good in energy saving ,no shake occurs at the contact terminal, without magnetic leakage, without temperature increment, noise-free and maintenance-free .Suitable for frequent start-up and control.

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