In brief: Servo electric cylinder accuracy should be defined as a measurable requirement. Separate commanded resolution, positioning error and repeatability before choosing a corrective action.
servo electric cylinder accuracy: engineering checklist
Begin with the application requirements and record the baseline before changing settings. The appropriate configuration depends on the actual actuator, drive, external guidance and machine cycle. Use the selected components’ manuals for limits.
Define the measurement
Specify whether the application needs bidirectional positioning accuracy, one-direction repeatability or path tracking. State load, speed, temperature and measurement method. A controller display is not an independent position measurement.
Inspect mechanical error
Backlash, coupling play, guide friction and screw wear can produce position error. Measure at several stroke locations and approach from both directions. Check alignment and side load before changing drive gain.
Check feedback and calibration
Confirm encoder scaling, screw lead, homing offset and external sensor calibration against the drive configuration. A high-resolution encoder cannot remove thermal growth or structural deflection. Record before-and-after measurements with a traceable gauge.
Validate under production load
Test the real payload, duty and ambient conditions. Monitor motor current and following error over repeated cycles. If error grows with temperature, review warm-up, lubrication and thermal design. Compare results to the selected model datasheet, not a generic marketing claim.
Practical verification steps
- Record model, load, stroke, speed, duty, orientation and relevant alarms.
- Compare the actual measurements with the actuator and drive documentation.
- Inspect the mechanical load path and safety controls before adjusting the motion profile.
- Change one condition at a time and retest the complete operating cycle.
Frequently asked question
How should I confirm the selection? Share the load case, motion profile and drawings with engineering. A model-specific calculation is more useful than a general force, speed or accuracy promise.
Read the NEFEIT resource center, failure diagnosis guide and product range, or contact NEFEIT engineering. The THK technical resources offer further linear-guidance background; follow the actual component manuals for requirements.