Engineering & Test Lab
We validate servo prototypes against real load, thermal, backlash, and communication constraints. The lab workflow defines project-specific CTQ (Critical-to-Quality) thresholds before pilot production instead of relying on catalog specs alone.
Dynamometer & Load Testing
Load-test planning for high-torque, low-speed robotic actuators, with torque, current, and speed evidence defined by each project.
- Continuous and peak torque mapping
- Cogging and detent torque measurement
- Back-EMF and KV constant verification
- Efficiency mapping across all speed ranges
Thermal & Environmental Test Planning
Plan thermal and environmental checks around enclosed robot joints, field conditions, and sustained duty cycles.
- Project-specific thermal cycle profiles
- Humidity and condensation checks when required
- Winding heat-rise monitoring under defined loads
- Potting compound thermal review
Backlash & Precision Metrology
Reduce backlash uncertainty with defined measurement methods for integrated harmonic, cycloidal, and custom gear paths.
- Hysteresis and lost motion curves
- Encoder zero-point calibration
- Transmission error profiling
- CMM inspection of critical bearing seats
Electrical & EMI Compliance
Pre-compliance planning for custom low-voltage servo drives to reduce EMI, insulation, and multi-axis communication risk.
- Surge and regenerative voltage spike testing
- EMI emission and immunity pre-checks
- Insulation resistance and Hi-Pot testing
- Communication latency and jitter analysis
Validation Plan Matrix
| Test | Required Input | Output | Next Page |
|---|---|---|---|
| Torque-speed-current map | Motor data, drive current limit, bus voltage, reducer ratio, load profile, and expected continuous operating point | Measured torque, speed, current, efficiency, saturation trend, and sizing margin for the robot axis. | Motor selection |
| Thermal derating run | Duty cycle, ambient target, housing contact area, cooling assumption, winding limit, and electronics temperature limit | Temperature-rise curve, safe continuous torque, derating factor, soak behavior, and heat-path risk notes. | Thermal guide |
| Backlash and lost-motion check | Reducer type, output bearing support, preload plan, encoder location, reverse-load case, and inspection method | Initial backlash, repeatability, stiffness indication, post-burn-in drift, and acceptance limit recommendation. | Reducer guide |
| Drive communication and EMI check | Protocol, node count, cable length, shielding, grounding, controller cycle target, and firmware diagnostics plan | Bus stability evidence, fault behavior, timing margin, current-loop notes, and wiring risk list. | Drive selection |
Production QC Evidence Flow
| Stage | Check | Record |
|---|---|---|
| Incoming components | Motor winding resistance, encoder inspection, PCB visual check, reducer receipt condition, bearing and harness verification | Incoming inspection sheet with lot, revision, measurement, photo, and acceptance status. |
| Assembly and calibration | Fastener torque, bearing seating, encoder zero, current offset, travel limit, firmware version, and serial number assignment | Assembly traveler, calibration data, firmware checksum, operator, fixture ID, and timestamp. |
| End-of-line test | No-load run, load point, communication, current draw, noise, backlash, temperature rise, and safety limit behavior | Serialized end-of-line report tied to the actuator, drive, or servo module. |
| Burn-in and outgoing QA | Thermal soak, repeated motion cycle, connector retention, label check, packaging, and shipment protection | Burn-in log, final inspection status, packing record, and shipment-ready evidence pack. |
Failure Signals to Investigate
| Symptom | Likely Cause | Next Page |
|---|---|---|
| Torque margin disappears after warm-up | Thermal path, winding limit, drive current limit, or duty cycle assumption is optimistic. | Motor-drive matching |
| Current spikes or noise appears near low speed | Motor inductance, encoder resolution, current-loop tuning, or mechanical resonance needs review. | Servo drive review |
| Backlash changes after load cycling | Reducer preload, bearing support, fastener retention, lubrication, or shock case is not controlled. | Backlash guide |
| Pilot units pass function but fail consistency | Calibration, fixture control, firmware versioning, incoming lot variation, or outgoing test limits are too loose. | Assembly test |
Validate Your Next Project With Us
Replace datasheet-only assumptions with a project-specific validation plan. Share your duty cycle, torque targets, and thermal constraints so the review can focus on your robotic axis.
Inquiry Email
Include drawings, torque/speed, protocol, and prototype quantity.