Mine hydraulic lift column is applied coal mine equipment manufacturing hydraulic lift cylinder technology tools for HZWA type used in a slight increase in coal mining face resistance metal prop set stays tight purposes. Compared with the mechanical lift column is not only compact, convenient and effortless operation, supporting high-speed fast, the most prominent advantage is initial support force. For mine roof fall accident reduction, to ensure safe production effect is very obvious, won miners welcome. Octagon Mining Machinery Co., Ltd. mainly produces hydraulic prop, U-shaped Karan, card view, π-beams, metal roof beams, hinged roof beams., Hydraulic prop, a liter column device.