Specialized in manufacturing kinds of Hydraulic cylinders, engineering cylinders, servo cylinders which are used for the proportional control of electricity and liquid and servo cylinders which can instead of the imported REXROTH, ATOS cylinders.

Electric-hydraulic proportional control is to adjust the hydraulic parameters ( such as displacement, pressure, discharge and so on) according to the electronic input signal.This is the perfect combination of hydraulic and electricity ,which is used for open loop and close loop control system, so it can control the movement quickly,steadily and exactly.

The core of electric-hydraulic proportional servo control is proportional servo valve,. The electronic amplifier adjusts the electric current which are supplied to electric magnet according to input signal (usually it is positive and negative 10VDC voltages or 0- -20mA currents) . The electric currents are changed into the force which work on the valve core,so it can conquer the spring force. The electic current is corresponding to the force, when we compress the spring ,a corresponding displacement happen,so it will change the opening of the valve,as this way, it can control the discharge,pressure.