Main features: 1.   Third-class dead axel helical gear transmission structure is adopted 2.   Gear and gear axel are made of heat treated alloy steel 3.   Case and case cover with precise assembly and good seal are made of quality cast iron 4.   The reducer is independent, soits easy to load and unload 5.   It has deice with up and down stroke protection of break off limiter and can cut off main circult in an emergency 6.   Electric elements are of long service life and operational safety 7.   It uses GB1102-74 hoist steel wire rope which is durable in use 8.   The hoist motor uses conical rotors of relatively stronger starting torque to brake asynchronous motor and does not need extra arrester 9.   The motor’s load duration factor is 25%and motor uses B grade and F grade insulation and its grade of protection is IP44/IP54