The SIEMAG Hydraulic Braking System of Mine Hoist

The structure, functions, work principle and main characteristics of the SIEMAG hydraulic braking system of shaft hoist are introduced in this paper. A performances comparasion with the hydraulic braking system of JK hoist in the adjustable pressure brake unit, the safe brake, the brake examination of butterfly spring and the wear examination of brake shoe is made. Practice has certified that the system has steady performance, high reliability and less maintaining work.