In 2012, Shaoguan Hydraulics undertook the design, manufacture of 480/400-8300 main hydraulic hoisting cylinder for CW -AH5000M fully hydraulic oil drilling machine for China Greatwall Drilling Company, which has 630-ton lifting force, and 5300-m drilling depth.  The main hydraulic cylinder developed by Shaoguan Hydraulics has strong lifting power and can dynamically control, promote the lifting speed of drilling tool, providing a guarantee for safe completion of the oil drilling machine. The clients were satisfied with the excellent product quality provided by Shaoguan Hydraulics.