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Humanoid Robot Actuators

Catalog-style humanoid robot actuator sourcing for prototypes, pilot builds, and OEM programs.

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Subject: Product Selection Inquiry - Humanoid Robot Actuators

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This inquiry starts from the catalog. Use the RFQ center to turn a broad shortlist into a candidate RFQ class, document request, and sample validation gate.

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Supplier finder and evidence-based comparison

Humanoid Robot Actuator Manufacturers

Filter actuator manufacturers for humanoid robots by documented product architecture. Compare supplier scope and integration work, then qualify a model against your joint requirements.

Filter the supplier shortlist
Filter actuator suppliers
Match the shortlist to a publicly documented product family.
Product architecture

This local filter checks product categories, not engineering fit. It has no live pricing, inventory, or supplier response data.

Supplier shortlist

6 of 6 suppliers match. The list is not ranked.

CubeMars
Catalog actuator modules
Its robotics catalog describes humanoid joint actuators and separates integrated modules from QDD products.
Integrated rotary modulesQuasi-direct drive (QDD)

Integration scope: Compare the exact AK or AKE model. Integration scope differs between product families.

Verify before selection: Continuous and peak torque conditions, speed under load, thermal limits, control interface, and service terms.

Robotics actuator range(opens in a new tab)
Harmonic Drive
Precision motion components and actuators
The public catalog lists rotary and integrated actuators, strain-wave gear units, component sets, and linear actuators.
Integrated rotary modulesStrain-wave gearingLinear actuation

Integration scope: Choose between a complete actuator and a gearbox or component set that needs a customer-designed assembly.

Verify before selection: Rated life at the real duty cycle, shock-load limits, lubrication, motor/drive compatibility, and quoted lead time.

Products and actuator families(opens in a new tab)
Leaderdrive
Precision robotic components
Its product portfolio includes strain-wave gears, rotary actuators, and frameless direct-drive torque motors.
Integrated rotary modulesStrain-wave gearingFrameless motors

Integration scope: The listed product families span component-level and actuator-level options; confirm what is included in the selected model.

Verify before selection: Model-specific torque and speed curves, backlash definition, thermal conditions, interfaces, and sample qualification data.

Official product families(opens in a new tab)
Kollmorgen
Frameless motor supplier
Its frameless motor range is presented for robotic and collaborative robot joints.
Frameless motors

Integration scope: A frameless motor is a stator/rotor kit. The robot team designs the housing, bearings, feedback, and the rest of the joint.

Verify before selection: Motor curves at the intended voltage, thermal path, encoder and drive pairing, fit tolerances, and assembly validation.

Frameless motors for robotics(opens in a new tab)
maxon
Integrated robotic drive supplier
Its robotics and mobility pages describe configurable integrated robot-joint systems; configuration is project-specific.
Integrated rotary modules

Integration scope: Options range from components to configurable joint systems. Request a configuration matched to the robot and interface requirements.

Verify before selection: Joint-level continuous output, encoder and torque-sensor options, controller/network compatibility, and customization terms.

Integrated robot joints(opens in a new tab)
Schaeffler
Humanoid motion technology supplier
Its humanoid robotics page identifies a system/component supplier role and lists actuators, transmissions, sensors, and control electronics.
Integrated rotary modulesLinear actuation

Integration scope: The portfolio spans multiple motion components and system roles; confirm whether the offer is a component, actuator, or integrated solution.

Verify before selection: Product maturity and availability, joint-level performance data, mechanical/electrical interfaces, and production validation evidence.

Humanoid robotics portfolio(opens in a new tab)

What this comparison can tell you

The useful first distinction is what the supplier sells: a complete joint module, a motor or reducer component, or a configurable drive system. A product-family match is a starting point, not proof that a unit meets a robot design.

Supplier scope varies

CubeMars lists integrated and QDD actuator families. Harmonic Drive and Leaderdrive also list reducer and component options. Compare like-for-like integration scope before comparing offers.

Catalog fit is not qualification

Public pages establish product families and stated use cases. They do not establish performance under your duty cycle, life target, thermal path, or robot-level interface.

There is no fair public price rank

The listed sources do not provide a shared price and lead-time basis across equivalent configurations. Request dated quotes against the same specification and quantity.

Humanoid actuator supplier comparison

This is a shortlist of suppliers with relevant public product information, not a market census or ranking. “Integration context” describes the work implied by the documented product scope; confirm exact deliverables with the supplier. Inclusion requires an official product source for an actuator, joint, motor, or reducer family relevant to robot joints; architecture labels reflect those published families, not tested fit.

Publicly documented humanoid robot actuator supplier product scope and integration context
Supplier and roleDocumented product familiesIntegration contextPrimary source
CubeMarsCatalog actuator modulesIntegrated rotary modules, QDD actuators. Its robotics catalog describes humanoid joint actuators and separates integrated modules from QDD products.Compare the exact AK or AKE model. Integration scope differs between product families.Robotics actuator range
Harmonic DrivePrecision motion components and actuatorsIntegrated rotary modules, Strain-wave gears, Linear actuators. The public catalog lists rotary and integrated actuators, strain-wave gear units, component sets, and linear actuators.Choose between a complete actuator and a gearbox or component set that needs a customer-designed assembly.Products and actuator families
LeaderdrivePrecision robotic componentsIntegrated rotary modules, Strain-wave gears, Frameless motors. Its product portfolio includes strain-wave gears, rotary actuators, and frameless direct-drive torque motors.The listed product families span component-level and actuator-level options; confirm what is included in the selected model.Official product families
KollmorgenFrameless motor supplierFrameless motors. Its frameless motor range is presented for robotic and collaborative robot joints.A frameless motor is a stator/rotor kit. The robot team designs the housing, bearings, feedback, and the rest of the joint.Frameless motors for robotics
maxonIntegrated robotic drive supplierIntegrated rotary modules. Its robotics and mobility pages describe configurable integrated robot-joint systems; configuration is project-specific.Options range from components to configurable joint systems. Request a configuration matched to the robot and interface requirements.Integrated robot joints
SchaefflerHumanoid motion technology supplierIntegrated rotary modules, Linear actuators. Its humanoid robotics page identifies a system/component supplier role and lists actuators, transmissions, sensors, and control electronics.The portfolio spans multiple motion components and system roles; confirm whether the offer is a component, actuator, or integrated solution.Humanoid robotics portfolio

Official supplier product pages reviewed October 11, 2026. Supplier descriptions are self-published; verify current specifications, availability, and commercial terms directly.

Continue to the supplier qualification checklist

How to qualify a supplier for a robot joint

Move from a product-family match to a tested joint-level fit. Keep peak and continuous operating conditions separate in the request.

Supplier qualification flowDefine the joint envelope, choose a product architecture, compare supplier data, and validate a sample under representative loads.1234Define joint needsChoose architectureCompare supplier dataValidate a sample
  1. 1. Define joint needs

    Loads, speed, duty cycle, mass, and envelope.

  2. 2. Choose architecture

    Module, reducer, motor kit, or linear actuator.

  3. 3. Compare supplier data

    Use matching test conditions and interfaces.

  4. 4. Validate a sample

    Test under a representative motion profile.

Include in the RFQ

  • Joint map, motion range, output type, and installation envelope.
  • Continuous and peak torque or force, speed, and duty cycle.
  • Supply voltage, controller, encoder, network, and safety interfaces.
  • Mass target, thermal environment, shock loads, and service life.
  • Prototype quantity, production forecast, region, and target dates.

Ask for evidence and boundaries

  • Torque-speed curves and test conditions at the target voltage.
  • Continuous output and thermal limits for the intended mounting.
  • Backlash, stiffness, life, and shock limits for the selected reducer.
  • Included components, firmware/API support, and integration work.
  • Sample test plan, warranty, supply capacity, and quote validity.

For a broader architecture and requirements walkthrough, see the humanoid robot actuator guide.

Frequently asked questions

Who are the top actuator manufacturers for humanoid robots?

There is no source-backed universal ranking in this comparison. It groups suppliers by publicly documented products and integration scope. Shortlist against the joint specification, then compare validated offers.

Does a listed manufacturer sell a complete actuator?

Some list integrated joint or actuator products; others also sell motors, reducers, or component sets. Check the selected model’s bill of supply so the motor, gearing, sensors, drive, and output support are clear.

Can this tool choose the right actuator for a leg or arm?

No. It filters suppliers by product family. Joint fit depends on the required torque-speed envelope, duty cycle, thermal path, mass, interfaces, and validation data.

Can I compare supplier prices from this page?

Not reliably. Ask each supplier to quote the same configuration, quantity, delivery region, support scope, and quote date. This page does not estimate prices or lead times.

Related sourcing resources

Read the humanoid robot actuator guideBrowse actuator product familiesReview OEM actuator capabilities

Ready to scope an actuator program?

Bring a joint map, load profile, target interfaces, and volume forecast so the next discussion can focus on an engineering fit.

Discuss requirements