Overview
XCM CNC is a Shenzhen PTFE machining factory that organizes corrosion-resistant seals and large liner parts around material supply, equipment matching, and batch consistency. Virgin and filled grades are confirmed from the drawing.
PTFE resists most chemical media, provides low friction and self-lubrication, and supports service temperatures from -200 C to 260 C. Engineering review covers fill-grade changes, reinspection, and clean handling before samples transition into repeat orders.
Key Capabilities
- Materials: Virgin PTFE, glass-filled PTFE, carbon-filled PTFE, bronze-filled PTFE by drawing review
- Tolerance: ±0.05 mm standard CNC machining tolerance
- Surface Finish: Ra 3.2 μm standard, Ra 1.6 μm precision
- GD&T: Coaxiality 0.03 mm, runout 0.03 mm, cylindricity 0.03 mm
- Max Size: Milling 3000 x 1600 x 1400 mm, turning diameter 1250 x 2000 mm
- Surface Treatment: Deburring, surface smoothing, seal-face preparation, or clean handling by drawing review
- Thread: M3–M64, NPT/BSP/G/PT (1/8″–2″)
- Batch Range: 1 piece to repeat production, with a standard lead time of 10-15 days
PTFE Factory Capacity for Large and Complex Parts
XCM CNC schedules PTFE production against 3000 x 1600 x 1400 mm milling travel and diameter 1250 x 2000 mm turning capacity. Before order release, the process team checks M3–M64 threads, standard ±0.05 mm dimensions, complex operations, fixturing, and creep risk to determine whether the 10-15 day route requires split-batch planning.
PTFE Material-Lot Routing for Repeat Production
The 3-7 day sample stage is separated from repeat production to preserve material-lot traceability. critical-fit features and 0.03 mm hole-position requirements link first-article inspection, lot changeover, and CMM records. Fill-grade documentation is updated before each new production run.
PTFE Export Surface Protection and Verification
Export parts retain Ra 1.6 μm mating faces and 0.03 mm coaxiality after seal-face preparation or clean handling, subject to pre-shipment verification. Multi-face setups and fill-grade changes can require a 0.03 mm runout recheck, with edge protection confirmed before packing.
PTFE Repeat-Order Inspection Records
Repeat orders can maintain selected ±0.008 mm features and Ra 1.6 μm precision bores when inspection datums are defined. CMM, FAI, and material records are linked to the drawing revision and material lot for corrosion-resistant seals, large liners, and low-friction sliding parts.
Specifications
| Product Name | China PTFE 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 | PTFE |
| Material Grade | Virgin PTFE, glass-filled PTFE, carbon-filled PTFE, bronze-filled PTFE by drawing review |
| Tolerance | ±0.05 mm standard CNC machining tolerance |
| Precision Tolerance | ±0.008 mm for selected critical features by drawing review |
| Surface Roughness | Ra 3.2 μm standard, Ra 1.6 μm precision |
| Surface Treatment | Deburring, surface smoothing, seal-face preparation, or clean handling by drawing review |
| Max Part Size | Milling 3000 x 1600 x 1400 mm / Turning diameter 1250 x 2000 mm |
| Inspection | CMM, image measurement, height gauge, roundness tester, roughness tester, thread gauges |
| Application | Corrosion-resistant sealing sets, automation guide parts, large liner components |
| Typical Application | China supply projects for PTFE components |
| Key Features | Chemical resistance, material-lot routing, fill-grade review, repeat-order stability |
| Critical QC Requirements | Material traceability, creep-risk review, seal-face inspection, fill-grade confirmation, post-process reinspection |
| Batch Range | 1 piece to repeat production lots, standard lead time 10-15 days |
| MOQ | 1 Piece |
| Typical Lead Time | 10-15 business days after drawing review |
| Drawing Formats | STEP, IGS, DWG, PDF, X_T |
| Secondary Process | Deburring, seal-face preparation, clean handling, dimensional stabilization review, and reinspection |
| Material Certificate | Material certificate by order requirements |
| Material Feature | Chemical resistance, low-friction sealing polymer, creep-sensitive design review |
| Assembly Features | Seal grooves, guide rings, non-stick flow parts, low-friction interfaces by drawing review |
| Critical Tolerance Control | Flatness 0.03 mm, position tolerance 0.03 mm, hole position 0.03 mm by drawing review |
Applications
Chemical Valve Bodies and Corrosion-Resistant Fittings
Typical Parts: Corrosion-resistant fitting, valve body, piping part
PTFE chemical resistance, low friction, and sealing behavior suit chemical valve bodies and piping fittings. Repeat orders combine material-lot control, seal-face reinspection, and delivery checkpoints. Fill grade and material documents are confirmed against the service media before release.
Large PTFE Liner Plates and Tank Components
Typical Parts: Liner plate, tank liner, sealing liner ring
Large corrosion-resistant liners and sealing rings require coordinated material lots, sealing-face checks, and delivery planning. Creep evaluation and split-fixture strategy are confirmed before scheduling to reduce dimensional variation between batches.
Pharmaceutical Gaskets and Valve-Seat Assemblies
Typical Parts: Seal part, gasket, valve seat part
PTFE seals, gaskets, and valve-seat parts support pharmaceutical equipment that requires chemical resistance and controlled sealing surfaces. Material certificates, batch records, and inspection reports can be linked and supplied by order.
Analytical Guide Rings and Acid-Resistant Valve Cores
Typical Parts: Valve core, guide ring, acid-resistant container part
Low-friction valve cores and guide rings require repeat-order control of material lots, functional surfaces, and hole locations. Ra 1.6 μm guide surfaces and critical holes can receive focused checks before batch shipment.
Why Choose Us
Certified Quality System and PTFE Machining Coverage
XCM CNC organizes PTFE turning, milling, and corrosion-resistant sealing projects under ISO 9001, ISO 13485, IATF 16949, and GJB9001C aligned quality processes. Equipment from brands such as DMG, Mazak, Matsuura, and Brother supports virgin and filled PTFE parts, with creep risk, fixturing, and chemical-media requirements reviewed from the drawing.
Size Range from Small Seals to Large Liners
Milling travel reaches 3000 x 1600 x 1400 mm and turning capacity reaches diameter 1250 x 2000 mm. The range covers PTFE seals, gaskets, low-friction sliding parts, large liners, and corrosion-resistant vessel components, subject to fixturing, creep behavior, and service-media review.
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 PTFE operations can run on domestic or Taiwan equipment, while precision sealing faces and high-coaxiality features use imported machines such as DMG and Mazak. Equipment is matched to actual tolerance needs to control cost without weakening drawing requirements.
PTFE Grade and Lot Traceability
Material grade, fill type, service-media requirements, CMM reports, and material documents can be linked to specific parts and batches. Substitution limits and inspection sampling are defined before order release for chemical, pharmaceutical, and laboratory projects.
Repeat Scheduling with Protection and Export Packing
PTFE orders can be scheduled through rough machining, stabilization, finish machining, and reinspection. Repeat orders retain equipment matching and critical checks, while high-value surfaces receive isolated packing and export protection to reduce pressure marks and contamination.
FAQ
How do you match equipment to different PTFE grades and part requirements?
Equipment is selected by tolerance and geometry. Standard-tolerance or large liner operations can run on domestic or Taiwan machines, while precision sealing faces and coaxial fits use imported equipment such as DMG and Mazak, subject to drawing review.
How are PTFE samples and repeat batches scheduled?
The 3-7 day sample stage is scheduled separately and its inspection record is approved before repeat production. Standard batch lead time is 10-15 days. A grade or drawing revision requires renewed first-article review before the next batch.
Do PTFE parts change dimensions after machining?
Stress release and environmental changes can shift critical PTFE dimensions. Seals and precision fits can include stabilization and reinspection steps, with timing selected from geometry, wall thickness, and grade.
What inspection records can accompany a PTFE batch?
Standard dimensional reports are available, while CMM reports, FAI records, and material certificates can be supplied by order. Records are linked to the relevant drawing revision and batch number.
Can you manage PTFE grade traceability by order?
PTFE grade, fill type, incoming lot, material documents, parts, and inspection records can be linked by order. Customer standards and substitution restrictions should be defined before production.
How do you organize protection and export packing for PTFE parts?
Surface protection, reinspection, isolated packing, and export protection can be planned as one delivery sequence. The exact level depends on surface condition, transport method, geometry, and customer requirements.
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.
Email: [email protected] | WhatsApp: +8618638951317
