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QDD Motors logoQDD Motors

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

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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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Integrated Robot Joint Motor Modules

Motor, reducer, encoder, brake option, and driver integration for humanoid, quadruped, and collaborative robot joints.

Target Buyer:Best for OEM robotics teams that need a validated joint module instead of sourcing motor, reducer, encoder, and driver separately.

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.

Integrated robot joint motor module with compact housing

Capability Highlights

  • Motor, gearbox, encoder, and driver integration
  • CAN FD, RS485, and EtherCAT interface options
  • Hip, knee, ankle, shoulder, and elbow joint packages

Typical Applications

  • Humanoid hip and knee joints
  • Quadruped leg joints
  • Collaborative robot elbows
  • Research robot actuator stacks

Engineering Focus

  • Peak and continuous torque sizing by joint location
  • Driver protection under regenerative braking
  • Encoder zeroing, cable routing, and mounting envelope control
  • Sample acceptance criteria for backlash, NVH, and thermal rise

Key Evaluation Matrix

MetricTypical RangeWhy It Matters
Peak Torque20 Nm - 300 Nm classMatches the actuator to hip, knee, ankle, shoulder, or elbow load cases without oversizing the full robot.
CommunicationCAN 2.0, CAN FD, RS485, EtherCAT optionDetermines firmware integration effort and network scalability for high-joint-count robots.
Module IntegrationMotor, reducer, encoder, driver, brake optionReduces supplier coordination and sample iteration risk for early-stage robot programs.
BacklashLow backlash planetary or harmonic optionControls position dead zone and force-control repeatability in locomotion and manipulation.

RFQ Checklist

  1. Share joint location and motion profile
  2. Define peak torque, continuous torque, speed, and duty cycle
  3. Confirm voltage, communication protocol, and controller architecture
  4. Provide mechanical envelope, flange pattern, and cable exit constraints
  5. State prototype quantity, annual forecast, and validation timeline

Risk Controls

  • Separate component mismatch: Co-validate motor winding, reducer ratio, encoder resolution, and driver current limit as one module.
  • Regenerative overvoltage: Define bus voltage, braking profile, and protection circuit assumptions before sample shipment.
  • Late mechanical changes: Lock the CAD envelope, bolt circle, output interface, and connector orientation with revision control.

Product Gallery

Robot joint actuator for humanoid and quadruped assemblies
Robot joint actuator for humanoid and quadruped assemblies
Integrated robot motor with encoder and driver package
Integrated robot motor with encoder and driver package

Buyer FAQ

Can you build a full robot joint module around our envelope?

Yes. We can adapt winding, ratio, encoder, driver board, housing, shaft, flange, and cable direction to match a buyer-supplied joint envelope.

Do you support both prototype and mass-production volumes?

Yes. Typical programs start with engineering samples, then move through pilot validation, tooling lock, and repeat production with serial traceability.

Can the same platform support different robot joints?

Often yes. We can tune winding, ratio, current limit, and housing details so related hip, knee, ankle, or arm variants share a controlled platform.

Related Resources

  • QDD Actuators
  • Quadruped & Humanoid Joints
  • Assembly & Testing
  • Start RFQ

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