Mine shaft sinking winch brake performance: brake job should be sensitive and reliable two-speed sinking winch sales, the contact area between the brake shoe (with) the brake rim should not be less than 70%. Safety brake air travel time: compressed air driven brake shoe should not exceed 0.5s; accumulator hydraulic drive shoe brakes should not exceed 0.6s. Mine shaft sinking winch reducer cleanliness determination: empty load test after two-speed winch winch sinking Which is good, the implementation of the required JB / T7929; the weighing method using two-speed filtering and drying plant sinking winch, the balance error should be less than 5mg. Measured from the edge of the roll: roll edge distance of rope diameter multiples of inspection, measurement winch drum height above the edge of the outermost layer of rope, wire rope diameter and divided by the mean value. Two-speed dual-speed shaft sinking winch company _ _ XINGDA mine shaft sinking winch provided by Anyang County Xingda Mining Machinery Limited. Anyang County Xingda Mining Machinery Co., Ltd. (www.ayxxdkj.com) strong, credible, Anyang in other industries has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead XINGDA mine and you hand into the brilliant, for a better future!