QDD Motors logoQDD Motors
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QDD Motors logoQDD Motors
WhatsApp
QDD Motors logoQDD Motors

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

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.

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
Solutions
  • 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
Resources
  • Blog
  • About
  • Quality & Certifications
  • Contact / RFQ
  • Privacy Policy
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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.
Capabilities

OEM Capabilities

Factory-side engineering and supply capability designed for global OEM projects, from prototype validation to repeat production.

This section is organized around the buyer journey: requirement closure, sample evidence, process quality, and global delivery execution. Each topic includes practical control points for RFQ and PO governance.

OEM Program Control Flow

  1. Freeze requirement and revision baseline.
  2. Execute sample plan with measurable acceptance criteria.
  3. Map CTQ to process checkpoints and outgoing records.
  4. Align forecast, packaging, and shipment execution model.
Frameless Motor Kit

Stator & Rotor Lamination

High-speed precision stamping, electrical steel qualification, and stator/rotor stack control for high torque-density QDD, BLDC, and robot joint motors.

For electromagnetic design engineers and volume buyers who need repeatable lamination quality, controlled core loss, and production-ready tooling discipline.

  • High-speed progressive die stamping and stack height control
  • Ultra-thin electrical steel sheet qualification by grade and coating
  • Core stacking, welding, bonding, insulation, and burr control
View details
Precision CNC Machined Parts

CNC Machining & Tooling

Precision CNC turning, milling, tooling, and inspection support for motor housings, hollow shafts, bearing seats, flanges, gear parts, and robot joint actuator hardware.

Ideal for sourcing and mechanical engineers who need controlled dimensions on motor interfaces that affect bearings, encoders, runout, sealing, and vibration.

  • 5-axis CNC machining for motor housings, flanges, and joint hardware
  • Bearing-seat, runout, concentricity, and surface-finish control
  • CMM, inline probing, fixture, and tooling documentation support
View details
Robot Joint Assembly Line

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.

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

  • 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
View details
Custom integrated motor engineering sample

Custom Motor Engineering

Collaborative DFM, electromagnetic design, actuator architecture review, and prototype governance for custom QDD, BLDC, hollow-shaft, and integrated robot motor programs.

Ideal for OEM R&D teams that have a target envelope or performance problem but need factory-side engineering to turn it into a manufacturable motor specification.

  • Electromagnetic, thermal, mechanical, and driver-interface review
  • Rapid samples with revision-controlled requirements and CTQ gates
  • Custom winding, shaft, flange, housing, encoder, brake, and tooling support
View details

Capability Comparison Snapshot

CapabilityPrimary Buyer FocusKey MetricWhy It Matters
Stator & Rotor LaminationFor electromagnetic design engineers and volume buyers who need repeatable lamination quality, controlled core loss, and production-ready tooling discipline.Stamping Tolerance: Tooling-dependent micron-level controlEnsures minimal air gap variation, maximizing motor efficiency.
CNC Machining & ToolingIdeal for sourcing and mechanical engineers who need controlled dimensions on motor interfaces that affect bearings, encoders, runout, sealing, and vibration.Machining Precision: +/-0.005 mm class for selected critical dimensionsCritical for bearing seat alignment and reducing vibration/noise in high-speed applications.
Assembly & EOL TestingFor quality assurance teams and supply chain directors who need proof that a validated sample can be repeated with measurable EOL records.Testing Coverage: Program-defined EOL and FAT planKeeps outgoing evidence tied to the buyer acceptance criteria for critical robotic systems and medical devices.
Custom Motor EngineeringIdeal for OEM R&D teams that have a target envelope or performance problem but need factory-side engineering to turn it into a manufacturable motor specification.DFM review depth: Mechanical, electromagnetic, thermal, and production reviewReduces redesign iterations and accelerates time-to-market.

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.