Overview
XCM CNC provides custom PEEK turning and milling for drawing-based high-performance polymer projects. DFM review can confirm the grade, critical dimensions, and fixturing plan before machining.
For continuous service up to 260 C, high strength and stiffness, or chemical resistance, sample approval also reviews metal-replacement design and relevant biocompatibility requirements. Revisions can be evaluated after sampling before the project moves into low-volume production.
Key Capabilities
- Materials: Virgin PEEK, carbon-filled PEEK, glass-filled PEEK by drawing review
- Tolerance: ±0.03 mm standard CNC machining tolerance
- Surface Finish: Ra 3.2 μm milled, Ra 1.6 μm turned (virgin grade), Ra 2.5 μm (GF-filled grade)
- GD&T: Coaxiality 0.02 mm, runout 0.02 mm, cylindricity 0.02 mm
- Max Size: Milling 3000 x 1600 x 1400 mm, turning diameter 1250 x 2000 mm
- Surface Treatment: Deburring, edge polishing, marking, or clean handling by drawing review
- Thread: M3–M64, NPT/BSP/G/PT (1/8″–2″)
- Inspection: CMM report, FAI report, and material certificate by order requirement
PEEK OEM Drawing Review for Critical Fit Tolerance
PEEK OEM drawing review can reserve ±0.005 mm critical features and 0.02 mm position tolerance before sample approval. For thin-wall high-temperature polymer structures or 0.02 mm hole-position requirements, stock allowance, fixture datums, and inspection items are reviewed together. A switch among virgin, carbon-filled, and glass-filled PEEK also requires a review of thermal-distortion risk and fit-surface reinspection.
PEEK Sample Approval for Thin-Wall Functional Surfaces
PEEK sample approval can reserve Ra 1.6 μm turned surfaces on virgin-grade parts and Ra 2.5 μm on GF-filled grades on functional areas by drawing review. When walls approach 0.5 mm or critical-fit features are required, first-article confirmation checks heat buildup and elastic recovery. Multi-face parts also need a defined deburring range and datum-change sequence during sampling.
PEEK Revision Control for Coaxiality and Runout Features
PEEK revisions should trigger a recheck of 0.02 mm coaxiality and 0.02 mm runout on mating or flange interfaces. When a revision affects deep cavities, long slots, or mating faces, the toolpath should be reassessed around 0.02 mm flatness and ±0.005 mm precision features. Stock distribution and reinspection order are updated with the revision.
PEEK Post-Process Reinspection After Surface Protection
PEEK parts can keep Ra 3.2 μm standard milled faces while selected areas receive clean handling or an edge-polished finish review. Medical mating faces, high-temperature structures, and metal-replacement interfaces can be verified after processing with CMM and FAI reports and a material certificate by order. Hole position at 0.02 mm and coaxiality at 0.02 mm require post-process reinspection.
Specifications
| Product Name | OEM PEEK CNC Turned and Milled Parts Supplier |
|---|---|
| Manufacturer | XCM CNC |
| Factory Location | Shenzhen, Guangdong, China |
| Quality System | ISO 9001, ISO 13485, IATF 16949, GJB9001C |
| Machining Process | CNC turning, CNC milling |
| Material | PEEK |
| Material Grade | Virgin PEEK, carbon-filled PEEK, glass-filled PEEK 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 μm milled, Ra 1.6 μm turned (virgin grade), Ra 2.5 μm (GF-filled grade) |
| Surface Treatment | Deburring, edge polishing, marking, or clean handling 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 | Medical device components, aerospace lightweight structures, UAV high-temperature parts |
| Typical Application | Drawing-based PEEK assemblies and metal-replacement parts |
| Key Features | High-temperature polymer, chemical resistance, drawing-based DFM review, sample approval |
| Critical QC Requirements | Material traceability, thermal-distortion review, critical-dimension inspection, fill-grade confirmation, post-process reinspection |
| Batch Range | 1 piece to low-volume repeat production |
| 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 polishing, marking, clean handling, and post-machining reinspection |
| Material Certificate | Material certificate by order requirements |
| Material Feature | High-temperature polymer, chemical resistance, metal-replacement review |
| Assembly Features | Metal-replacement fits, insulating faces, bearing seats, high-temperature mounting features by drawing review |
| Critical Tolerance Control | Flatness 0.02 mm, position tolerance 0.02 mm, hole position 0.02 mm by drawing review |
Applications
Non-Implant Medical Guides and Lightweight Handles
Typical Parts: Endoscope housing, surgical instrument handle, diagnostic equipment bracket
PEEK combines biocompatibility, chemical resistance, and metal-replacement potential for non-implant guides, instrument handles, and lightweight brackets. Guide-hole position, handle surfaces, and support faces are reviewed for grade and sample reinspection during DFM. Additional inspection reports and material documents can be supplied by order after approval.
Aerospace Lightweight Insulating Supports and Test Bases
Typical Parts: Lightweight bracket, insulating seat, test fixture base
High-temperature resistance and high strength and stiffness make PEEK suitable for lightweight insulating brackets and heated test bases that replace selected metal parts. Hole locations, insulating contact faces, weight-reduction ribs, tolerance allocation, and fixture datums are defined during drawing review, followed by geometry and fit checks after sample approval.
Heat-Resistant UAV Motor Mounts and Transmission Parts
Typical Parts: Motor mount, transmission part, heat-resistant bracket
PEEK retains stiffness in continuous high-temperature service, making it suitable for UAV motor mounts, transmission parts, and heat-resistant structures. Shaft bores, mounting faces, heat-resistant ribs, grade, and post-processing requirements are tied to the drawing revision, while first articles can be checked for thermal distortion and fit-surface condition.
Corrosion-Resistant Flow Blocks and Valve Seats
Typical Parts: Flow-path part, valve body, corrosion-resistant seal seat
Chemical resistance and metal-replacement capability support analytical-instrument flow parts, valve bodies, and high-temperature seal seats. Flow paths, sealing faces, and mounting holes need defined roughness and geometric tolerances during DFM, and samples can verify sealing contact and flow-resistance performance.
Why Choose Us
Quality Systems and Equipment Coverage
XCM CNC organizes PEEK projects under ISO 9001, ISO 13485, IATF 16949, and GJB9001C aligned quality processes, with equipment from brands such as DMG, Mazak, Matsuura, and Brother for turning, milling, and high-temperature precision polymer parts. For virgin, carbon-filled, or glass-filled PEEK, the drawing review can address material grade, overheating risk, and medical or chemical-resistance requirements.
Size Range from Connectors to Structural Parts
Machining coverage extends from small connectors to larger structural parts, including PEEK insulators, bearing seats, high-temperature precision parts, plates, housings, and metal-replacement structures. Three-axis travel reaches 3000 x 1600 x 1400 mm and turning capacity reaches diameter 1250 x 2000 mm, subject to fixturing, grade, and thermal-distortion review.
Tiered Equipment Strategy for Cost and Quality
XCM CNC uses a tiered equipment mix from mainland China, Taiwan, Japan, Europe, and the US. Standard-tolerance operations can run on domestic or Taiwan equipment, while high-precision features are assigned to imported machines such as DMG and Mazak. Equipment is matched to the actual tolerance requirement so simple operations do not consume high-hour precision capacity.
Grade Changes Confirmed Before Sample Approval
The stiffness, wear behavior, and post-processing needs of virgin, carbon-filled, and glass-filled PEEK can be compared before sample approval so material changes do not disrupt quotation and process planning. If the grade changes after sampling, overheating risk, fixturing, and critical-face reinspection are reviewed again.
Overheating Risk Reviewed Up Front
PEEK samples require early review of high-speed, low-feed machining, thermal distortion, and metal-replacement conditions instead of applying the rhythm used for ordinary plastics. This approach is intended for high-temperature, high-strength, and chemically resistant parts that need a dedicated process plan.
FAQ
How do you choose PEEK instead of POM or nylon for CNC parts?
PEEK is usually worth evaluating when continuous high temperature, chemical resistance, or metal-replacement performance matters more than the lower cost of common engineering plastics. The final choice still depends on the drawing, service temperature, stiffness, and budget.
Why is PEEK machining more expensive than common engineering plastics?
PEEK machining cost is driven by raw-material price, grade differences, thermal-distortion control, and the required inspection scope. Filled or medical grades and tighter dimensional control can add cost depending on geometry and application requirements.
What should be watched when machining carbon-filled PEEK parts?
Carbon-filled PEEK requires closer attention to tool wear, fiber-direction effects, and the finished surface. Toolpaths, stock allowance, and reinspection methods depend on the grade, geometry, and critical-face requirements.
What documents are usually needed for medical-grade PEEK parts?
Medical-grade PEEK projects normally begin with the required material documents, traceability level, and inspection records. The exact certificates and document formats must follow the customer standard and order requirements.
What drawing files and material details do you need for custom PEEK parts?
Quotation and DFM review normally require 2D and 3D drawings, material grade, tolerances, quantity, and service-environment details. High-temperature, metal-replacement, or medical-grade requirements should also identify the priorities for sample approval.
How do you handle PEEK grade changes after sample approval?
If a project changes among virgin, carbon-filled, and glass-filled PEEK after sample approval, thermal distortion, fixturing, critical faces, and inspection items are reviewed again. The revision determines whether a new first article or updated inspection plan is required.
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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