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Here is a detailed guide on how to properly test a linear actuator sample before integrating it into your project. First always start with thorough visual inspection. Check build quality for scratches, poor welds or bad finish. Then measure retracted hole-to-hole distance exactly. It must match your setup. Stroke length should also give needed travel. After physical checks do bench tests: time full extend/retract to calculate speed in inches per second and compare to datasheet. Use multimeter to check no-load current draw for correct power supply sizing. If noise matters measure dB level in quiet room. Then move to loaded tests: repeat speed and current under realistic weight. Check if speed drop and current rise are acceptable. Also verify IP rating suits environment, duty cycle prevents overheating and feedback type works with your system if needed. Finally do field test in real application for some time. For complete step-by-step process with photos, checklist and graphs check this excellent resource: linear actuator testing . Highly recommended reading before final decision.