Profile: Schoolhill Hydraulic Engineering Co., Ltd. is a manufacturer of hydraulic equipment. We are an ISO 9001 certified company. We provide hydraulic cylinders, pipe handling systems, stainless steel valves, and cleaning & flushing. Heavy duty tiebolt cylinders are developed specifically for sub-sea wellheads and running tools. These have some unique design features. Powered rollers are used to drive pipes along, in their axial direction, while kick off arms, stop and single release units. We provide idler roller jacks, powered drive roller jacks, kick off arms, stop & single release units, hydraulic chocks, lathe steadies, powered turntables, and dipping tables.