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China-based robotic joint module factory supporting OEM customization, quality control, and global delivery.

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[email protected]

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Send target torque/speed, protocol, quantity, and delivery location.

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+86 18857971991

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Products
  • Inverted Planetary Roller Screw
  • QDD Hollow-Shaft Actuator
  • Frameless Torque Motor
  • Series Elastic Actuator (SEA)
  • Micro Ball Screw
  • EtherCAT/CANopen Joint Module
Solutions
  • Humanoid Joint Architecture
  • Collaborative Robot Actuation
  • Medical & Rehab Actuation
OEM Capabilities
  • Joint Module OEM Customization
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  • Engineering Blog
  • Resources / Compliance
  • About Factory
  • Contact / RFQ
  • Technical Program Articles
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© 2026 Robotic Joint Module. All Rights Reserved.|Backed by Linkup Ai Co., Ltd. Manufacturing delivered by the Advanced Manufacturing Division of Linkup Precision.
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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.
Inverted planetary roller screw actuator for compact linear force modules

Inquiry Email

[email protected]

Open email app

Send target torque/speed, protocol, quantity, and delivery location.

Instant Chat

+86 18857971991

Start WhatsApp

Direct response from our engineering team.

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

MetricTypical RangeWhy It Matters
Screw diameter rangePhi 9-24 mm (project dependent)Defines axial load ceiling and packaging feasibility.
Lead range0.5-5 mmSets thrust-speed behavior and motor matching requirements.
Surface hardness targetHRC58-62 typicalCorrelates 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

PackageWhen to RequestPurpose
DatasheetModel shortlist stageVerify electrical and performance envelope assumptions.
STEP / IGESMechanical integration reviewValidate envelope, mounting, and cable-routing compatibility.
Communication manualController and commissioning planningAlign protocol behavior, PDO mapping expectations, and diagnostics workflow.

Inquiry Email

[email protected]

Open email app

Send target torque/speed, protocol, quantity, and delivery location.

Instant Chat

+86 18857971991

Start WhatsApp

Direct response from our engineering team.

RFQ Checklist

  1. Target thrust, stroke length, and speed profile
  2. Allowed outer diameter and mounting geometry
  3. Expected duty cycle, shock load, and life target
  4. Prototype quantity and forecasted annual volume

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

Inverted planetary roller screw transmission detail
Inverted planetary roller screw transmission detail
High-load inverted planetary roller screw assembly
High-load inverted planetary roller screw assembly

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

  • Resources / Compliance
  • OEM Capabilities
  • Contact / RFQ

Inquiry Email

[email protected]

Open email app

Send target torque/speed, protocol, quantity, and delivery location.

Instant Chat

+86 18857971991

Start WhatsApp

Direct response from our engineering team.