RFQ Checklist
- Target bore diameter and wiring/air routing description
- Required repeatability, indexing angle, and cycle time
- Load and moment envelope with payload inertia
- Motor brand/model and interface drawing revision
← Back to Products
Hollow Rotary Actuators
High-rigidity hollow rotary actuators for cable-through routing, precision indexing, and compact automation stations.
Target Buyer:Best for OEM teams that must combine precision rotary positioning with mandatory through-hole routing.
Capability Highlights
- Large center bore options for cable, air tube, and optical routing
- Cross-roller bearing structure for high stiffness and repeatability
- Servo-ready flange interfaces for mainstream motor ecosystems
Typical Applications
- 3C assembly indexing stations
- Semiconductor and vision handling modules
- Laser process turntable units
Engineering Focus
- Map bore size to real cable bundle diameter and bend radius
- Validate axial/radial load plus tilting moment under peak duty
- Confirm motor flange, coupling, and control loop matching
Key Evaluation Matrix
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Through-Hole Diameter | 20-100mm class, customizable | Defines whether cable routing can be solved without external drag-chain compromises. |
| Repeatability | Arc-second class, model-dependent | Directly affects placement yield and process consistency. |
| Axial/Radial Capacity | Application-specific sizing matrix | Prevents bearing life loss caused by under-spec platform selection. |
Risk Controls
- Through-hole mismatch after cable selection: Freeze cable bundle OD and bend radius before final model lock.
- Thermal drift in high-cycle operation: Run cycle-time and temperature verification during sample validation.
Decision Workflow From First RFQ to Release
Treat this page as a working template for engineering and procurement alignment, not a brochure. The goal is to convert Hollow Rotary Actuators requirements into measurable acceptance rules before model selection and sourcing release.
- Baseline lock: confirm Target bore diameter and wiring/air routing description and Required repeatability, indexing angle, and cycle time.
- Fit validation: verify Through-Hole Diameter and Repeatability under real payload and cycle conditions.
- Risk clearance: close controls for Through-hole mismatch after cable selection and Thermal drift in high-cycle operation.
- Release package: attach the evidence table below to your internal review so quote comparison is based on the same criteria.
Minimum Evidence Pack for Buyer Review
Use this pack to compare suppliers on equivalent inputs. It prevents quote loops caused by hidden assumption differences.
| Artifact | Minimum Content | Acceptance Signal |
|---|---|---|
| Product RFQ sheet | Target bore diameter and wiring/air routing description | No unresolved assumptions in supplier clarification round. |
| Validation matrix | Metric targets for Through-Hole Diameter and Repeatability. | Pass/fail thresholds are numeric and test-method linked. |
| Risk closure log | Preventive actions for Through-hole mismatch after cable selection. | Owner, due date, and verification evidence are assigned. |
Non-Fit Triggers Before PO
- Stop release if requirement ownership is unclear across supplier, controls engineer, and procurement approver.
- Delay commitment if Through-Hole Diameter is quoted without a reproducible validation method.
- Hold PO when critical risks (for example, Through-hole mismatch after cable selection) are still tracked as open items.
Product Gallery
Buyer FAQ
Can you support custom bore and mounting interfaces?
Yes. Bore diameter, flange pattern, and cable routing geometry can be customized for OEM integration.
Do you support major servo motor brands?
Yes. We align the interface to common servo ecosystems such as Siemens, Yaskawa, Panasonic, and Delta.