Picking an industrial servo manufacturer based on the lowest MOQ is how you end up with 500 units that fail six months in. The datasheet was fine. The sample tested fine. The problem wasn’t the spec — it was everything the spec didn’t cover.
Can They Customize Firmware
Most factories buy locked controller ICs. They can change the case color. They can’t change deadband, fail-safe behavior, or angle limits. A real industrial servo manufacturer either writes their own firmware or has enough leverage with the IC vendor to request custom builds. Ask if they can tighten deadband from 2 microseconds to 0.5 in firmware. If they don’t understand the question, you’re talking to a reseller.
Do They Test at Operating Temperature
The datasheet shows stall torque at 25°C. Your actuator runs at 45°C in a sealed enclosure. Cheap ferrite magnets lose 15-20% torque at that temperature. Ask for the torque curve at 45°C and 60°C. If they can’t produce it, they’ve never run the test.
Can They Give You a Failure Analysis
When three units out of 200 fail in the field, a commodity supplier sends replacements and hopes you go away. An industrial servo manufacturer sends a report: photos of the disassembled unit, the failed component, root cause, corrective action for the next run. No process for this means they’re not built for production volumes.
XQ-Power handles gear cutting, PCB assembly, and firmware in-house. Custom parameters, conformal coating, and connector changes are standard — not special requests.
Related: 24V Industrial Servo: Skip the Step-Down Converter