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QDD Motors logoQDD Motors
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QDD Motors logoQDD Motors

Industrial motion manufacturer supporting custom engineering, strict quality control, and global delivery.

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[email protected]

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Include target torque/speed, quantity, and delivery location.

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+86 188 5797 1991

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Products
  • Quasi-Direct Drive (QDD) Actuators
  • Robot Joint Motor Modules
  • Hollow Shaft Joint Motors
  • High Torque BLDC Motors
  • Low Ratio Geared Motors
  • Standard AC Motors
  • Stainless Steel Washdown Motors
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  • Exoskeleton Power Solutions
  • Quadruped & Humanoid Joints
  • Humanoid Robot Actuators
  • Quadruped Robot Actuators
  • Robotic Arm Joint Solutions
  • Mobile Robot Drive Systems
  • Medical Rehabilitation Motors
  • Harsh Environment
OEM Capabilities
  • Stator & Rotor Lamination
  • CNC Machining & Tooling
  • Assembly & Testing
  • Custom Engineering
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© 2026 QDD Motors. All Rights Reserved.|QDD Motors supports OEM robot joint motor programs with engineering review, manufacturing coordination, quality records, and export delivery planning.
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Assembly & EOL Testing

Controlled motor assembly, encoder zeroing, driver integration, serial traceability, and program-defined end-of-line testing for QDD actuators and precision robot motors.

Best Fit For:For quality assurance teams and supply chain directors who need proof that a validated sample can be repeated with measurable EOL records.

Inquiry Email

[email protected]

Email app

Include target torque/speed, quantity, and delivery location.

Instant Chat

+86 188 5797 1991

Request CAD Model via WhatsApp

Opens a direct WhatsApp thread with the RFQ message prefilled.

Robot Joint Assembly Line

Capability Highlights

  • EOL and FAT records scoped by buyer CTQ list
  • Automated winding, potting, balancing, and encoder calibration support
  • Digital serial traceability with inspection and export packaging records

Typical Engagement Scope

  • High-volume QDD production
  • Medical-grade motor assembly
  • Robot joint module validation
  • Pilot-to-mass-production quality control

Execution Focus

  • Torque-speed, no-load current, Hi-pot, insulation, and winding checks
  • Backlash, NVH, encoder zeroing, driver communication, and thermal-rise checks
  • Process capability, serial records, CTQ control, and lot traceability
  • Sample acceptance criteria, FAT plan, and outgoing inspection report format

Program Evaluation Matrix

Program MetricTypical RangeProcurement Value
Testing CoverageProgram-defined EOL and FAT planKeeps outgoing evidence tied to the buyer acceptance criteria for critical robotic systems and medical devices.
Electrical Test ScopeHi-pot, resistance, inductance, no-load current, Back-EMFElectrical tests catch winding, insulation, magnet, and assembly issues before shipment.
Mechanical Test ScopeBacklash, runout, NVH, torque-speed, thermal riseRobot joint buyers need evidence tied to real control and mechanical performance, not visual inspection alone.
TraceabilitySerial number, lot, operator, test record, packaging recordTraceability supports field issue analysis, repeat-order consistency, and buyer audit readiness.

RFQ Preparation Checklist

  1. Define FAT and EOL test items, pass/fail limits, and reporting format
  2. Request sample reports for torque-speed, thermal rise, backlash, NVH, and electrical tests
  3. Confirm encoder zeroing, communication interface, firmware, and driver test assumptions
  4. List CTQ dimensions, serial traceability, packaging, label, and export-document needs
  5. State pilot quantity, repeat batch forecast, and buyer audit requirements

Risk and Mitigation

  • Batch inconsistency: Serial or lot tracking with agreed outgoing records for each controlled shipment.
  • Sample passes but production test limits are unclear: Convert sample acceptance criteria into EOL limits and outgoing record templates before pilot release.
  • Encoder or driver issues found after integration: Include encoder zeroing, packet-loss, firmware, current-limit, and communication checks in the EOL plan.

Related Products

Integrated Module Testing
Integrated Module Testing
Force Sensor Calibration
Force Sensor Calibration

Buyer FAQ

Can I audit the testing facility?

Absolutely. We welcome OEM buyer audits at our Shenzhen/Dongguan facilities.

Can you share EOL reports with each shipment?

Yes. The report scope can include agreed electrical, mechanical, communication, serial, and packaging records for the buyer program.

Which tests should a robot actuator buyer request?

At minimum, request torque-speed, thermal rise, backlash, NVH, Hi-pot, no-load current, encoder zeroing, and communication checks tied to pass/fail limits.

Related Resources

  • Quality & Certifications
  • QDD Actuators
  • Robot Joint Modules
  • Contact Quality Team

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