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Product Description
| thing | describe |
| Design/Size | According to customer's drawings or samples |
| Material |
Aluminum: 6061, 6063, 6082, 7075, 5052, A380, etc. Stainless steel: SS201, SS301, SS303, SS304, (SS304 food grade), SS316, SS316L, SUS430, SS416 Steel: low carbon steel, carbon steel, 4140, 4340, Q235, Q345B, 20#, 45#, etc. Alloy steel (15Cr, 20Cr, 42CrMo), etc. Brass: HPb63, HPb62, HPb61, HPb59, H59, H68, H80, H90, etc. Copper, bronze, copper, etc. Titanium: TC4 (TiAl6v4, Grade f5) Plastic: ABS, PC, PE, POM, Delrin, Nylon, Plastic, PP, PEI, Peek, etc. |
| process | CNC machining, turning, milling, stamping, turning, cutting, etc. |
| Delivery time | Samples usually take 3-7 working days, and mass production will be carried out according to the detailed quantity after sample approval. |
| Surface treatment | Transparent anodizing, color anodizing, chemical coating, brushing, passivation, polishing, chrome plating, sandblasting, laser engraving, zinc plating, black oxide, nickel plating, chrome plating, carburizing, heat treatment, painting |
| Test equipment | Coordinate measuring machine (CMM), 2D measuring instrument, projector, altimeter, micrometer, thread gauge, hardness tester, caliper, pin gauge, salt spray tester, concentricity measuring instrument, spectrometer. |
| Quality Management System |
ISO 9001:2015 ISO 13485:2016 |
| application | Auto parts, machinery parts, computer parts, medical parts, home appliance parts, electrical parts, electronic product parts, electronic parts, generator parts, alternator parts, generator parts, stationery, power switches, micro switches, construction, merchandise and A/V equipment. |
| File Format | Solidworks, Pro/Engineer, CAD, PDF, JPG, DXF, IGS |
| Package | Inner plastic bag, outer standard carton, or as per customer's requirements |
| Shipping | Sea freight, air freight, international express (DHL, FedEx, TNT, UPS). |
| Serve | The professional foreign trade team provides enthusiastic and fast response services. Dimensional inspection report/Raw material certificate/Surface treatment report/Engineering drawing RoHS report/Salt spray test report/Hardness test report |
POM‑H High‑Precision External Hinge | Custom CNC Machining
This component is a POM‑H (Polyoxymethylene Copolymer) high‑precision structural part manufactured by full‑process CNC precision machining. It is designed for applications requiring high wear resistance, low friction, and excellent dimensional stability, widely used in precision transmission, hinge connection, and electromechanical equipment.
Product Overview
- Material: POM‑H (High‑Stiffness Polyoxymethylene Copolymer)
- Process: Full CNC Precision Machining
- Appearance: Black, burr‑free, no sink marks, no weld marks, uniform color
- Features: High‑smooth surface, multi‑step holes, multiple radii, symmetrical structure
- Compliance: RoHS & REACH certified
POM‑H Material Advantages
| Property | Advantage |
|---|---|
| Mechanical Strength | High rigidity, impact resistance, low deformation |
| Friction Performance | Self‑lubricating, low friction, smooth movement |
| Fatigue Resistance | Stable under repeated motion, long service life |
| Machinability | Excellent for milling, drilling, boring, chamfering, mirror finishing |
| Environmental | Halogen‑free, compliant with global export standards |
CNC Machining Process
- Material Preparation: High‑purity POM‑H bar / sheet
- Programming & Fixturing: 3+2 / 5‑axis CNC, custom fixture
- Rough Machining: Remove excess material with heat control
- Semi‑Finishing: Uniform allowance for precision machining
- Finishing: Milling, boring, radii, chamfering, mirror surface
- Deburring & Cleaning: Ultrasonic / dry ice deburring
- Full Inspection: GO/NOGO gauge, profile meter, 2D measuring machine
- Packaging: Dust‑free & anti‑scratch packaging
Key Challenges & Solutions
| Processing Challenge | Solution |
|---|---|
| Heat deformation of POM‑H | Low‑speed cutting, air cooling, layered milling |
| High coaxiality & symmetry | Single clamping, high‑precision fixturing |
| Smooth surface without knife marks | Mirror cutter, climb milling, optimized tool path |
| Radii & chamfering without overcut | Tool compensation, simulation verification |
| Dense holes with vibration | Short‑edge cutters, high‑rigidity spindle |
| Burr‑free & melt‑free finish | Special deburring, optimized cutting parameters |
Our Quality & Delivery Commitment
- Authentic POM‑H material with material certification
- Stable precision for prototype & mass production
- High‑grade surface finish with zero visual defects
- One‑stop service: design → machining → inspection → delivery
- Full environmental compliance for global markets
Typical Applications
Precision electromechanical components, transmission hinges, positioning structures, wear‑resistant supports, automation equipment, high‑end motor components.
FAQ
1. Why use POM‑H instead of standard POM?
POM‑H is a high‑rigidity copolymer with better strength, dimensional stability, and fatigue resistance—ideal for long‑term, high‑load motion.
2. Does POM‑H easily warp during CNC machining?
We use low‑temperature cutting, layered roughing, air cooling, and single clamping to minimize heat and stress deformation.
3. Can you achieve a burr‑free, smooth surface?
Yes. We use mirror finishing tools + climb milling + optimized tool paths to achieve a defect‑free smooth surface.
4. Do you support small‑batch or prototype production?
Yes. We support 1‑piece prototype → small batch → mass production with consistent precision.
5. What is your typical lead time?
Samples: 3–5 days; small batches: 7–10 days; urgent orders available upon request.
6. Can you provide material and inspection reports?
Yes. We provide POM‑H material certification, RoHS/REACH reports, and dimensional inspection reports.
7. Can you customize according to our drawings?
Yes. We support custom design, structural optimization, and process improvement.
8. How do you prevent scratches during shipping?
We use anti‑static bag + foam + hard box packaging for safe transport.
9. Can you provide other colors or surface finishes?
Standard: black. Custom colors (white, gray) and finishes (matte, polished) are available.
10. Is this part suitable for high‑speed reciprocating motion?
Yes. POM‑H provides self‑lubrication, low friction, and excellent fatigue resistance for long‑term smooth motion.
TEL: +86 187 5714 8656
Email: zhouli@chinaliqin.com
WhatsApp：+86 187 5714 8656
Website:https://www.cncliq.com/
Email: zhouli@chinaliqin.com
WhatsApp：+86 187 5714 8656
Website:https://www.cncliq.com/
