Overview
XCM CNC organizes Acetal and POM machining supply around material sourcing, machine matching, and batch consistency for precision transmission, valve, and locator-structure projects. The drawing review confirms the common POM project direction before production starts.
For dimensional stability, low-friction self-lubrication, and high-stiffness requirements, the engineering team reviews burr control, reinspection, fit-surface protection, material lots, and the rhythm of critical-dimension verification before switching from samples to repeat orders.
Key Capabilities
- Materials: Delrin, Celcon, POM-H, POM-C by drawing review
- Tolerance: +/-0.03 mm standard, +/-0.005 mm selected critical features by drawing review
- Surface Finish: Ra 3.2 um milled, Ra 1.6 um precision, Ra 1.6 um turned or bored
- GD&T: Coaxiality 0.012 mm, runout 0.01 mm, cylindricity 0.011 mm
- Max Size: Milling 3000 x 1600 x 1400 mm, turning diameter 1250 x 2000 mm
- Surface Treatment: Deburring, edge smoothing, anti-burr review, or marking by drawing review
- Thread: M2-M220, NPT, BSP, G, PT
- Batch Range: 1 piece to repeat production, with a standard lead time of 10-15 days
Acetal Equipment Matching for China Supply
Acetal China-factory scheduling can match 3000 x 1600 x 1400 mm milling travel and diameter 1250 x 2000 mm turning capacity to the drawing before order release. M2-M220 threads, standard +/-0.03 mm dimensions, and the 10-15 day delivery route can cover most POM structural and precision-fit parts, while more complex structures still need process review for staged production or dedicated fixturing.
POM Batch Routing for Material Lots
Acetal batch routing can separate the 3-7 day sample stage from repeat production while maintaining material-lot traceability. Parts that need H7 holes, h6 shaft positions, or 0.015 mm position tolerance can keep first-article reinspection, batch changes, and CMM records inside the same delivery route. Material lot numbers, machining dates, and inspection records can be linked to specific parts by order.
POM Surface Protection for Export Orders
Acetal export parts can maintain Ra 1.6 um mating faces and 0.012 mm coaxiality before edge-smoothed or anti-burr finish review. If the project changes between Delrin, Celcon, or other POM grades, batch shipment still rechecks 0.01 mm runout and the selected edge-protection method. Multi-face fixturing projects also need fit-face isolation confirmed before packing.
POM Repeat Production Inspection
Acetal repeat orders can hold selected +/-0.005 mm critical features and Ra 1.6 um turned bores when the drawing defines the inspection datum. Gear, valve-core, locator-pin, and connector-clip interfaces can organize reinspection through CMM, FAI, and material records instead of appearance checks alone. Sampling rate and critical-dimension review frequency should be confirmed during the first order.
Specifications
| Product Name | China POM CNC Machined Parts Factory |
|---|---|
| Manufacturer | XCM CNC |
| Factory Location | Shenzhen, Guangdong, China |
| Quality System | ISO 9001, ISO 13485, IATF 16949, GJB9001C |
| Machining Process | CNC machining |
| Material | POM |
| Material Grade | Delrin, Celcon, POM-H, POM-C by drawing review |
| Tolerance | +/-0.03 mm standard CNC machining tolerance |
| Precision Tolerance | +/-0.005 mm for selected critical features by drawing review |
| Surface Roughness | Ra 3.2 um milled, Ra 1.6 um precision, Ra 1.6 um turned or bored |
| Surface Treatment | Deburring, edge smoothing, anti-burr review, or marking by drawing review |
| Max Part Size | Milling 3000 x 1600 x 1400 mm / Turning diameter 1250 x 2000 mm |
| Inspection | CMM, roundness tester, height gauge, roughness tester, thread gauges |
| Application | Fuel-system valve details, automation locators, low-friction sliding parts |
| Typical Application | China supply projects for acetal precision parts |
| Key Features | Dimensional-stable POM machining, material-lot routing, burr-control review, repeat-order stability |
| Critical QC Requirements | Material traceability, burr-control review, fit-surface inspection, tooth-profile or datum check, post-process reinspection |
| Batch Range | 1 piece to repeat production lots |
| MOQ | 1 Piece |
| Typical Lead Time | 10-15 business days after drawing review |
| Drawing Formats | STEP, IGS, DWG, PDF, X_T |
| Secondary Process | Deburring, edge smoothing, anti-burr review, marking, and post-machining reinspection |
| Material Certificate | Material certificate by order requirements |
| Material Feature | Dimensional-stable engineering plastic, low-friction precision motion review, burr-control focus |
| Assembly Features | Precision gears, valve seats, locator pins, clips, and low-friction sliding interfaces by drawing review |
Applications
POM Gears and Cams for Repeat Supply
Typical Parts: Precision gear, cam, worm wheel
Acetal dimensional stability, low friction, and elastic recovery suit low-noise drive parts such as gears, cams, and worm wheels. In repeat orders, tooth geometry, shaft bores, and meshing datums keep material-lot traceability, fit reinspection, and delivery checkpoints inside the same supply plan.
Valve Cores, Valve Seats, and Pump Supply Parts
Typical Parts: Valve core, valve seat, pump component
Low friction, self-lubrication, and dimensional stability make POM suitable for precision sliding and sealing fits in valve cores, valve seats, and pump components. Sealing faces, flow holes, and assembly datums in repeat orders keep material-lot traceability, fit reinspection, and delivery checkpoints inside the same supply plan.
Locator Pins, Guides, and Fixture Supply Parts
Typical Parts: Locating pin, guide part, fixture bushing
High stiffness, fatigue resistance, and dimensional stability suit locating pins, guide parts, and fixture bushings that cycle repeatedly in clamping use. Positioning holes, guide faces, and fixture datums in repeat orders keep material-lot traceability, fit reinspection, and delivery checkpoints aligned in one supply plan.
Connector Insulators and Clip Supply Parts
Typical Parts: 5G base-station filter tuning cover, optical-transceiver heat spreader bracket (non-load-bearing), test-fixture locating pin
Acetal spring behavior and low friction suit connector insulators, clips, and elastic latch structures. Slots, latch positions, and locating holes in repeat orders keep material-lot traceability, fit reinspection, and delivery checkpoints aligned in one supply plan.
Why Choose Us
Certified Quality System and Precision POM Coverage
XCM CNC organizes Acetal and POM projects under ISO 9001, ISO 13485, IATF 16949, and GJB9001C aligned quality processes, with DMG, Mazak, Matsuura, and Brother equipment covering high-precision turning and milling. Gear, valve-core, locator, and motion-component programs can confirm grade selection, crystallization control, burr management, and mating-surface requirements during drawing review.
Size Range from Small Connectors to Large Precision Structures
The machining range covers small connector-scale parts, gears, valve cores, locator pins, connector precision parts, larger guide plates, low-friction sliders, and weight-reduction structures used as metal alternatives. Milling travel reaches 3000 x 1600 x 1400 mm and turning capacity reaches diameter 1250 x 2000 mm, subject to fixturing, material grade, crystallization behavior, and fit requirements.
Tiered Equipment Strategy for Low-Cost CNC Machining, Quality-Assured Production
XCM CNC uses four equipment tiers from mainland China, Taiwan, Japan, Europe, and the US. Standard-tolerance operations can run on domestic or Taiwan equipment, while higher-precision features move to imported machines such as DMG and Mazak. Equipment is matched to actual tolerance needs so cost stays aligned with the drawing.
Stable Batch Traceability for POM Orders
POM grade, batch, and homopolymer or copolymer requirements can be linked by order to specific parts and inspection records, which supports stable repeat supply of high-precision parts. Gear, valve-core, and connector-insulator projects can define material documents, surface condition, and sampling scope directly in the delivery plan.
Controlled Scheduling for Precision POM Production
High-precision POM parts can be scheduled through rough machining, stabilization, finish machining, and reinspection to reduce waiting and rework. Repeat orders keep grade changes, equipment matching, and critical-dimension verification inside the same delivery rhythm.
FAQ
What is your factory MOQ and lead time for POM parts?
MOQ starts at 1 piece, sample lead time is usually 3-7 days, and standard production lead time is 10-15 days. The actual schedule still depends on geometry, quantity, and precision requirements.
How do you organize material-lot traceability for repeat POM orders?
Batch POM orders can link material lot numbers, machining dates, and inspection records to specific parts. The first order normally confirms the sampling rate and critical-dimension review frequency for later repeat production.
What export packing standard does your China factory use for precision POM parts?
Precision POM parts can combine reinspection, isolated packing, and export protection in one delivery route. The exact method still depends on fit faces, transport method, and the customer acceptance standard. Foam, carton, or wood-crate packing can be selected as needed.
What tolerance can precision Acetal parts usually reach?
Reference capability includes 0.02 mm flatness, 0.015 mm position tolerance, and 0.01 mm hole position on suitable features. Whether those values apply to a specific part still depends on the material grade, structure, and inspection method.
What POM parts does your factory usually machine for supply?
Common POM supply projects include gears, valve cores, valve seats, locator pins, guide components, and precision connector parts. Batch release still needs confirmation of the grade, batch, critical fit faces, and packing-protection requirement.
How do you handle inspection for high-volume POM orders?
High-volume POM orders can combine full first-article inspection, in-process sampling, and critical-dimension tracking. Sampling rate, CMM-report frequency, and material-certificate requirements still need to be confirmed by order.
Request a CNC Machining Quote from XCM CNC
Send us your drawings. Our team will review the file and reply with a machining quote. MOQ: 1 piece, with competitive low-cost pricing.
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