Four-column hydraulic press is a kind of hydraulic oil with special hydraulic oil as working medium and hydraulic pump as power source.
It enters the cylinder/piston through the hydraulic pipeline, and then there are several sets of seals in the cylinder/piston. The seals in different positions are different, but they all play a sealing role, so that the hydraulic oil will not leak.
Hydraulic transmission is a transmission mode that converts hydraulic energy into mechanical energy and uses hydraulic pressure to transmit power and control. The hydraulic device consists of hydraulic pump, hydraulic cylinder, hydraulic control valve and hydraulic auxiliary components.