QMS Scope Review
Production is managed against controlled process checkpoints. For formal supplier approval, confirm certificate scope, factory name, audit files, and required third-party documents during RFQ.
Aerospace-grade traceability and stringent metrology for precision actuator components.
We understand that small deviations in lead accuracy, preload, material, or assembly torque can create serious actuator problems. Our quality workflow is organized around defect prevention, material traceability, measurable CTQ controls, and outgoing records matched to the buyer's RFQ scope.
Production is managed against controlled process checkpoints. For formal supplier approval, confirm certificate scope, factory name, audit files, and required third-party documents during RFQ.
Every production lot is documented with material heat numbers, Certificate of Conformance (CoC), and heat treatment profiles.
Critical to Quality (CTQ) dimensions, backlash or preload, torque, and visual checks are documented according to drawing and purchase order requirements.
A useful quality page should answer what is checked, when it is checked, and what record the buyer receives. This flow is the default structure for custom inverted roller screw programs.
| Gate | Control Items | Buyer Record | Decision It Supports |
|---|---|---|---|
| RFQ review | Drawing revision, CTQ list, acceptance criteria, document scope, and open technical assumptions. | DFM questions and inspection plan notes. | Confirms whether the quotation is based on measurable requirements. |
| Incoming control | Material grade, heat number, CoC, purchase order match, and drawing baseline. | MTR or material certificate and lot traceability record. | Reduces material drift before machining starts. |
| In-process control | Heat treatment, hardness, grinding allowance, lead/profile, runout, roughness, and first-article dimensions. | FAI data, hardness record, roughness record, and process inspection notes where scoped. | Catches distortion or profile risk before assembly. |
| Final release | Backlash/preload, running torque, axial play, visual finish, packaging, PO, and shipment match. | Inspection report, CoC, packing record, and traceability package. | Gives buyer teams a release file for incoming approval. |
| Evidence | Applies To | Decision Value |
|---|---|---|
| Material certificate and heat number | Shafts, nuts, rollers, timing rings, and matched sets. | Confirms alloy baseline and lot traceability before heat treatment. |
| Hardness and heat-treatment record | Ground load-bearing parts and corrosion-resistant variants. | Prevents sample-to-batch drift in surface hardness and core toughness. |
| Lead accuracy and pitch deviation report | Inverted long nuts, screw shafts, and precision assemblies. | Shows whether the actuator can meet positioning and load sharing requirements. |
| Backlash/preload and torque record | Matched screw, nut, roller, and actuator screw sets. | Gives controls teams a measurable baseline for sample acceptance. |
| Certificate of Conformance | Prototype, EVT/DVT/PVT, small-batch, and production lots. | Links delivered parts to drawing revision, PO, inspection scope, and shipment. |
| Equipment Type | Inspection Purpose | Buyer Value |
|---|---|---|
| Coordinate Measuring Machine (CMM) | Verifies 3D geometric dimensioning and tolerancing (GD&T) on housings and complex flanges. | Reduces alignment risk by checking datums and critical features before final assembly. |
| Laser Interferometer | Measures pitch deviation and lead accuracy over the entire stroke length. | Supports lead-error verification when the drawing requires stroke-based positioning evidence. |
| Dynamic Load & Life Test Rig | Simulates continuous high-force cycles to validate L10 fatigue life and thermal limits. | Provides empirical data for mission-critical actuator designs. |
| Profilometer (Surface Roughness) | Checks Ra/Rz values on ground internal threads and bearing journals. | Maximizes grease retention and reduces premature wear. |
| Product Scope | Typical CTQ Checks | Optional Buyer Requests | Related Page |
|---|---|---|---|
| Inverted roller screw set | Lead accuracy, long-nut profile, runout, backlash/preload, torque, hardness, and roughness. | Matched-set serial record, sample release report, and actuator-fit notes. | Product details |
| Micro screw or robotic finger screw | OD, stroke, backlash, starting torque, running torque, visual finish, cleanliness, and packaging condition. | Low-noise fixture check, lubricant restriction, and corrosion or clean assembly notes. | Micro screws |
| Custom component package | Interface dimensions, shaft ends, bearing seats, thread geometry, timing rings, material, and CoC. | Matched assembly check, buyer drawing overlay, or first-article package. | Components |
Inquiry Email
Include target OD, lead, stroke, load, quantity, and delivery country.
WhatsApp Engineering
+8618857971991
Best for quick RFQ clarification and drawing-review coordination.