Typical Buyer File Package
- Lot-level inspection summary and release records
- Revision baseline confirmation and effective scope
- Quality issue escalation and corrective-action loop
- Shipping and packaging execution details
Process control and validation evidence for global OEM procurement programs using frameless servo motors.
This page is designed for engineering, quality, and sourcing teams who need structured proof of consistency before pilot and mass-production release.
We coordinate production through a Shenzhen and Dongguan factory network. Public pages describe capability and process controls at the network level; specific partner factory names and exact addresses are kept off-site so supplier routing can remain flexible by project scope.
The site does not publish specific partner factory names or street addresses. Instead, it presents the process controls buyers need to evaluate: material traceability, winding consistency, resin/potting control, electrical verification, and outgoing inspection records. When a buyer starts an RFQ, project-specific photos, inspection snapshots, or document packages can be shared case by case.
| Capability | Typical Scope | Buyer Review Point |
|---|---|---|
| Electromagnetic build | Winding option selection, copper fill control, insulation class alignment, lead routing, and phase marking. | Confirm Kt/Ke target, resistance window, and controller matching before sample release. |
| Mechanical integration | OD/ID/stack validation, mounting datum review, aperture clearance, cable exit direction, and drawing revision lock. | Avoid late-stage interference between motor kit, housing, bearing, encoder, and cable routing. |
| Thermal path support | Potting/impregnation plan, housing contact assumption, ambient condition, and duty-cycle review. | Validate continuous torque against real heat rejection rather than peak torque marketing claims. |
| Export delivery control | Lot labeling, packing method, shipment documents, and buyer-side receiving checklist. | Reduce customs, receiving, and repeat-order traceability issues. |
| Stage | Control Item | Output Record | Buyer Value |
|---|---|---|---|
| Incoming | Magnet, lamination, copper wire, insulation, and critical material verification | Incoming inspection logs | Reduces quality drift from uncontrolled raw inputs. |
| In-Process | Winding, slot insulation, lead routing, potting, and assembly checkpoints with revision control | Process control records | Improves build consistency across repeat lots. |
| Final Test | Back-EMF, phase resistance, insulation, phase balance, torque-speed, and appearance verification before release | Final test report and traceability ID | Supports engineering sign-off and incoming acceptance. |
| Shipment | Export packaging and release checklist | Packing and delivery records | Protects logistics reliability and receiving efficiency. |
| Test Item | What It Checks | Why It Matters |
|---|---|---|
| Back-EMF waveform | No-load generated voltage profile, phase consistency, and waveform abnormality. | Helps identify winding asymmetry, magnetization issues, and risks that can show up as noise or control instability. |
| Phase difference | Electrical spacing and phase relationship across U/V/W. | Supports smoother commutation and lowers integration risk with servo drives. |
| THD and ripple review | Harmonic distortion trend and motion-smoothness risk under the selected motor architecture. | Important for medical, optical, robotics, and low-speed precision motion programs. |
| Resistance and insulation | Phase resistance window, insulation resistance, and hipot-related release checks when required. | Reduces risks from winding damage, poor insulation, or process drift across repeat batches. |
| Torque-speed validation | Continuous zone, peak duration, bus voltage, ambient condition, and thermal assumption. | Gives engineering teams a more realistic basis for sizing than isolated peak torque values. |
Use these templates to align lot traceability, sample acceptance, and shipment-document checks before pilot and MP release.
Email RFQ
Use email for formal RFQ details, drawings, and specification files.
+86 18857971991
Use WhatsApp for quick pre-RFQ clarification and response.