Hydraulic slip developed and produced by our company is a hydraulic  operation tool for clamping casing during the drilling operation of petroleum and natural gas. Apply to the use of the 375 turntable, this hydraulic slip structure is compact, safe and reliable, which solves the back sprains and fatigue that many be occurred when workers use the manual slip, reduces labor intensity of workers and improves the work efficiency. If this equipment is installed on a turntable, it should keep horizontal to turntable and is convenient for the works of casing tong. It does not need to build another working platform to achieve a clean and safe working environment. The slip can clamp the casing tightly so as not to re-use manual slip and back-up tong.