RFQ Checklist
- Target thrust, stroke length, and speed profile
- Allowed outer diameter and mounting geometry
- Expected duty cycle, shock load, and life target
- Prototype quantity and forecasted annual volume
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Inverted Planetary Roller Screw Actuator
Compact high-load linear actuator architecture for humanoid leg and arm joints where axial space is limited.
Target Buyer:Humanoid hardware teams needing high-force linear drive in constrained envelopes.
Inquiry Email
Send target torque/speed, protocol, quantity, and delivery location.
Capability Highlights
- High axial load capability with compact packaging strategy
- Supports custom stroke, lead, and preload preferences
- Suitable for shock-prone dynamic motion scenarios
Typical Applications
- Humanoid knee and ankle linear actuation
- High-density robotic arm linear modules
- Industrial precision linear positioning stages
Engineering Focus
- Lead selection versus force-speed tradeoff and thermal behavior
- Nut geometry constraints and mounting stack-up limits
- Durability strategy under impact and repetitive load cycles
Key Evaluation Matrix
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Screw diameter range | Phi 9-24 mm (project dependent) | Defines axial load ceiling and packaging feasibility. |
| Lead range | 0.5-5 mm | Sets thrust-speed behavior and motor matching requirements. |
| Surface hardness target | HRC58-62 typical | Correlates with wear life and repeat-order reliability. |
Compliance and Trade Guidance
CE, RoHS, and REACH documentation support is available by project scope. HS classification should be treated as reference guidance only and must be confirmed by importer/broker based on destination rules and final product configuration.
- Confirm required compliance document list before sample planning.
- Include destination market and declaration scope in your RFQ message.
- Review detailed guidance in Resources / Compliance.
Download Package Path
| Package | When to Request | Purpose |
|---|---|---|
| Datasheet | Model shortlist stage | Verify electrical and performance envelope assumptions. |
| STEP / IGES | Mechanical integration review | Validate envelope, mounting, and cable-routing compatibility. |
| Communication manual | Controller and commissioning planning | Align protocol behavior, PDO mapping expectations, and diagnostics workflow. |
Inquiry Email
Send target torque/speed, protocol, quantity, and delivery location.
Risk Controls
- Stroke or thrust mismatch after drawing freeze: Lock application load profile and envelope before sample release.
- Lifecycle instability in impact duty: Define incoming/outgoing checks and accelerated life validation gates.
Product Gallery
Buyer FAQ
Can you support custom lead and stroke options?
Yes. Lead, stroke, and interface customizations are available after requirement review and sample validation planning.
Can we request STEP or IGES files for packaging study?
Yes. We can provide engineering model files after RFQ scope confirmation.
Related Resources
Inquiry Email
Send target torque/speed, protocol, quantity, and delivery location.