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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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Humanoid Robot Actuators

Joint motor and QDD actuator platforms for humanoid hips, knees, ankles, shoulders, elbows, and wrists.

Target Buyer:For humanoid robot CTOs, mechanical leads, and sourcing teams balancing performance, BOM cost, and supply continuity.

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.

Humanoid robot actuator motor for leg and arm joints

Solution Highlights

  • Joint-specific torque classes for full-body humanoids
  • Low reflected inertia for balance recovery
  • Shared platform strategy across hip, knee, ankle, and arm variants

Common Use Cases

  • Humanoid hip actuators
  • Humanoid knee and ankle joints
  • Shoulder, elbow, and wrist modules
  • Prototype-to-pilot humanoid robot builds

Implementation Focus

  • Joint family sizing by torque, speed, and duty cycle
  • Thermal management during standing and walking phases
  • Networked control architecture for high joint counts
  • Variant control across left/right and high/low torque joints

Application Evaluation Matrix

Evaluation MetricTypical RangeBuyer Relevance
Joint Torque Classes20 Nm - 300 Nm classHumanoid programs need different torque bands for ankle, knee, hip, shoulder, elbow, and wrist modules.
Thermal DutyStanding, walking, recovery, and lifting casesStatic holding and repeated gait cycles expose continuous torque limits that peak torque cannot represent.
Network InterfaceCAN FD, RS485, EtherCAT optionHigh joint counts require predictable bus architecture and firmware integration.

RFQ Preparation Checklist

  1. List joint positions and torque-speed requirements
  2. Share walking, squatting, lifting, and fall-recovery duty cases
  3. Confirm voltage bus, communication protocol, and controller stack
  4. Provide CAD envelopes and cable routing constraints
  5. State sample build quantity and ramp forecast by joint type

Risk and Mitigation

  • One actuator size used everywhere: Build a controlled joint family with torque classes instead of oversizing low-load joints.
  • Standing heat not evaluated: Separate walking peak events from continuous holding and thermal soak validation.
  • Variant confusion during pilot builds: Use part-number, firmware, and serial traceability for each joint position variant.

Recommended Products

Humanoid leg joint motor for knee and hip assemblies
Humanoid leg joint motor for knee and hip assemblies
Compact humanoid robot motor module
Compact humanoid robot motor module

Buyer FAQ

Can one supplier support multiple humanoid joint sizes?

Yes. We can plan a shared actuator platform across several joint classes while tuning winding, ratio, housing, and driver limits per position.

Do you support early prototype quantities?

Yes. Humanoid programs often begin with small sample lots before pilot builds and repeat production planning.

Related Resources

  • Integrated Robot Joint Modules
  • QDD Actuators
  • Assembly & Testing
  • Start RFQ

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