This series of machine tools can be used for shaft and other similar correction processes, as well as for press-fitting of sleeves and simple template stretching, forming and blanking processes. This series of machine tools adopts pedal linkage control and is easy to operate. The hydraulic series adopts electro-hydraulic reversing valves or cartridge valves, which are compact in structure, safe and reliable, and sensitive in action. It has fast speed, low energy consumption and low noise.