... controlling, load, displacement, extension 3 channel close loop servo control. • Tension, Compression and Bending test accessories as standard ... parts. • Select high quality hydraulic servo valve, control signals photoelectric isolation, 24V DC safe and reliable. • ... mmMaximum piston stroke (mm)250Working environmentRoom temperature 10°C~40°C, relative humidity≤90%Power Supply380/220v±10%, ...