Servo Hydraulic Cylinder

A: Servo hydraulic cylinders are engineered specifically for closed-loop feedback systems. They incorporate low-friction sealing systems to minimize stick-slip, integrated linear position sensors for real-time piston tracking, and precision-machined flow paths designed to minimize pressure drops and phase lag during rapid directional changes.

A: We primarily utilize magnetostrictive linear absolute encoders housed inside a drilled piston rod. This layout protects the sensing element from hydraulic fluid pressure and physical damage while providing high-resolution digital or analog feedback signals (such as SSI, CANopen, or 4 to 20mA).

A: To eliminate stick-slip, we employ low-friction, multi-component PTFE-composite seal combinations and maintain precise geometric tolerances between the piston rod, gland, and cylinder bore. This ensures smooth, uniform motion even at speeds as low as 0.1 millimeters per second.

A: Because servo control relies on precise pressure and fluid containment, our cylinders are manufactured with tight manufacturing clearances and high-grade step seals, restricting internal piston bypass to less than 5 milliliters per hour under rated static pressure.

A: Yes. We manufacture replacement servo actuators configured to match existing pin-to-pin dimensions, mounting footprints, and hydraulic port layouts of major test equipment and machinery brands. Engineering drawings are submitted for customer sign-off prior to production.

A: Each shipment includes a comprehensive factory test report covering dimensional verification, sensor calibration curves, proof pressure test results, material test certificates (MTRs) for pressure boundaries, and recommended maintenance schedules.