Servo Electric Cylinder

Best Fit

• Factory automation axes that need programmable force, position, and velocity without hydraulic fluid systems.
• Servo presses, joining stations, welding guns, clamping, dispensing, and lift axes with data capture requirements.
• Buyers who want the mechanical cylinder, motor adapter, brake, sensor, and actuator body reviewed together.

Review Before Sizing

• Force-displacement curve, hold time, cycle rate, dwell heat, and required process data outputs.
• Servo motor brand, flange, coupling, gearbox, encoder, brake, voltage, and control interface.
• Mounting style, rod end, anti-rotation guide, cable routing, IP rating, and maintenance access.

RFQ Checklist

1. Preferred motor brand and communication protocol
2. Mounting style (clevis, trunnion, flange)
3. Requirement for holding brakes or absolute encoders
4. Force-displacement profile, hold time, cycle rate, and data logging need
5. IP rating, lubrication interval, cable routing, and service access

Risk Controls

• Drive incompatibility: Motor adapters and flange details are reviewed against the buyer-selected servo package.
• Frame compliance masks actuator repeatability: Review machine stiffness, tooling alignment, and load-cell location before assigning all variation to the cylinder.
• Holding force overheats the motor: Use brake holding, mechanical load paths, or duty-cycle changes when long dwell at high force is required.

Factory Validation Evidence

• Motor mounting concentricity, bearing fit, thrust tube alignment, and anti-rotation smoothness checks.
• Repeatability, backlash, brake holding, sensor switching, and running torque verification.
• Project-specific load-cell and cycle testing when the actuator is used for press or joining work.

Buying Notes

• State whether the factory should supply the motor and drive or only the cylinder with an adapter kit.
• Provide PLC, fieldbus, safety, and data logging requirements early to avoid late integration changes.
• For hydraulic replacement, send the old cylinder envelope and the actual force/speed cycle, not only bore and pressure.