Robotic joint module categories for industrial OEM sourcing, from precision harmonic modules to compliant and integrated bus-connected actuator architectures.
Use this page as a pre-RFQ navigator: pick the product family, capture the correct engineering inputs, and move directly to sample validation criteria that buyers can approve.
Compact high-load linear actuator architecture for humanoid leg and arm joints where axial space is limited.
Humanoid hardware teams needing high-force linear drive in constrained envelopes.
Low-ratio backdrivable actuator architecture for impact-tolerant robotic joints and clean internal cable routing.
Robotics teams optimizing impact response and control transparency.
Frameless stator-rotor sets for compact direct-drive integration with low cogging and high motor constant targets.
Mechanical and motor engineers embedding drive units into custom joint structures.
Compliant actuation architecture for safer human-robot interaction with torque estimation and force-control readiness.
Teams requiring compliant behavior and controllable force interaction.
Sub-3 mm class micro linear transmission options for dexterous robotic fingers and miniature precision mechanisms.
Teams building compact, high-precision finger and miniature linear actuation systems.
All-in-one rotary joint architecture integrating drive, encoder, and transmission for rapid commissioning.
Control and integration teams requiring deterministic bus-level commissioning.
| Product Family | Primary Buyer Focus | Key Metric | Why It Matters |
|---|---|---|---|
| Inverted Planetary Roller Screw Actuator | Humanoid hardware teams needing high-force linear drive in constrained envelopes. | Screw diameter range: Phi 9-24 mm (project dependent) | Defines axial load ceiling and packaging feasibility. |
| Quasi-Direct Drive (QDD) Hollow-Shaft Actuator | Robotics teams optimizing impact response and control transparency. | Gear ratio: 6:1 to 10:1 typical | Controls reflected inertia and impact backdrive behavior. |
| Frameless Torque Motor (Outrunner / Inrunner) | Mechanical and motor engineers embedding drive units into custom joint structures. | Stator outer diameter: 50-115 mm classes | Primary sizing input for torque constant and packaging. |
| Series Elastic Actuator (SEA) Module | Teams requiring compliant behavior and controllable force interaction. | Stiffness option window: 100-500 Nm/rad (project dependent) | Defines system compliance and closed-loop force behavior. |
| Micro Ball Screw for Dexterous Hands | Teams building compact, high-precision finger and miniature linear actuation systems. | Diameter range: Phi 2.5-8 mm | Determines packaging feasibility in tight finger assemblies. |
| EtherCAT / CANopen Integrated Joint Module | Control and integration teams requiring deterministic bus-level commissioning. | Bus protocol options: EtherCAT / CANopen DS402 | Determines integration speed and software compatibility. |
A selection of representative robotic joint and actuator modules from our current portfolio.
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