Mine shaft sinking winch performance: two-speed winch winch should operate smoothly Which is good, no periodic noise. Winch control system should be flexible, accurate and reliable. Rope maximum static tension should comply with two-speed winch, winch and measured power at rated load should not exceed the rated motor power of the motor. Shall comply with the provisions of the rope speed, tolerance is ± 20%. Mine shaft sinking winch brake performance: Work should be sensitive and reliable brakes, brake shoe contact area (zone) and 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. Two-speed dual-speed winch winch company _ _ XINGDA mine by Anyang County Xingda Mining Machinery Co., Ltd. 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!