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Humanoid Joint logoNEMA Stepper Motors

China-based NEMA stepper motor factory supporting OEM customization, quality control, and global delivery.

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[email protected]

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Send target torque/speed, quantity, and destination for faster RFQ response.

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+86 18857971991

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Direct technical discussion with our engineering team.

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Series Elastic Leg Actuator

Leg-joint actuator architecture oriented to impact absorption, compliance control, and dynamic gait stability.

Target Buyer:Teams prioritizing dynamic stability and hardware survivability in real-world locomotion.
Humanoid Robot Leg Linear Series Elastic Actuator Joint

Engineering Resources

Download exact 3D STEP models, 2D installation tolerances, and electrical wiring PDFs. Verified for standard OEM integration.

Request 3D STEPDatasheet & 2D PDF

Capability Highlights

  • Compliance-oriented architecture for safer dynamic interaction
  • Suitable for high-load cyclical locomotion
  • Supports force-control oriented control strategy

Typical Applications

  • Humanoid knee and ankle dynamic locomotion axes
  • Impact-sensitive legged robot platforms
  • Programs requiring compliant motion behavior

Engineering Focus

  • Map compliance target against gait and contact scenarios
  • Validate peak load and repeated impact events
  • Align control bandwidth with hardware dynamics
  • Confirm maintenance and serviceability expectations

Architecture & Performance Analysis

Exploded view and deterministic T-N operational envelope.

SYSTEM_ARCHITECTURE_v2.1
19-bit EncoderFrameless Torque MotorFriction BrakeStrain Wave GearTorque SensorOutput FlangeEtherCAT/CAN FD Bus
* Schematic representation. Proportions not to scale.
Feedback
Power
Transmission
PERFORMANCE_MAP_T-N
Speed (RPM)Torque (N·m)Tc: 6.5Tp: 15.2Nmax: 7216Knee Point
* Graph represents nominal 48V DC bus operation.
S1 (Continuous Duty)
S3 (Intermittent Duty)

Key Evaluation Matrix

MetricTypical RangeWhy It Matters
Impact absorption behaviorScenario-specific compliant responseImpact response defines hardware survivability and motion safety under dynamic contact.
Force-control responsivenessTuned by mechanical + control co-designAffects gait smoothness and disturbance recovery performance.
Cycle durabilityDefined by duty and maintenance profileDurability affects long-term uptime and total cost of operation.

Standard Technical Specifications

Reference parameters for the base configuration.

SpecificationTypical Range / ValueUnit
Peak Torque (Tmax)255.3N·m
Continuous Torque (Tc)76.8N·m
Nominal Voltage24V DC-
Max Output Speed103RPM
System Weight4.14kg
Ingress ProtectionIP54-
Communication InterfaceEtherCAT / CANopen-
* Note: These parameters represent the standard hardware configuration. Custom windings and ratios are available for OEM programs.

RFQ Checklist

  1. Leg joint role and gait profile
  2. Peak and continuous load assumptions
  3. Compliance target and control strategy
  4. Integration envelope and mounting interface
  5. Pilot test plan and acceptance threshold

Risk Controls

  • Compliance setting not matched to gait target: Define motion objectives and failure modes before architecture freeze.
  • Pilot success but MP instability: Carry forward validated parameters and CTQ checkpoints into production plan.
  • Insufficient impact margin for edge cases: Use worst-case load assumptions and include verification margin in sample plan.

Product Gallery

Humanoid Robot Leg Linear Series Elastic Actuator Joint
Humanoid Robot Leg Linear Series Elastic Actuator Joint
Humanoid Robot Leg Linear Series Elastic Actuator Joint
Humanoid Robot Leg Linear Series Elastic Actuator Joint

Buyer FAQ

Is this architecture suitable for aggressive gait programs?

It is commonly selected for dynamic locomotion scenarios where impact handling and compliance are required.

Can we align on safety and fallback behavior early?

Yes. We recommend defining fault and fallback conditions at RFQ stage to avoid late-stage redesign.

How do we control pilot-to-MP consistency?

Use a revision-controlled transfer package covering CTQ, process checks, and outgoing records.

Related Resources

  • Bipedal Locomotion Application
  • DDP Delivery & Compliance Execution
  • Contact & RFQ

Engineering Download Starter Pack

Public download links for procurement and engineering teams. No account or login required.

  • RFQ template (.csv)
  • Specification template (.csv)
  • Test report template (.csv)
  • Full resource index

Inquiry Email

[email protected]

Open email app

Send target torque/speed, quantity, and destination for faster RFQ response.

WhatsApp

+86 18857971991

Open WhatsApp

Direct technical discussion with our engineering team.