Precision PEEK CNC Machining Services
PRECI5 provides high-precision CNC machining for PEEK (Polyetheretherketone) components. Powered by 8 Mazak C600 5-axis centers and sub-micron ZEISS metrology, we deliver tight-tolerance, thermally stable parts for semiconductor, medical device, aerospace, and high-temperature dielectric applications.
PEEK Material Properties & Selection Benchmark
Selecting the appropriate PEEK formulation is critical for dimensional stability, mechanical loading, and chemical resistance. Benchmark data below represents standard verified industry thresholds (ASTM / Victrex benchmarks). Properties vary according to base resin and reinforcement structure.
| Technical Property | Unfilled PEEK | 30% Glass Filled PEEK (GF30) | 30% Carbon Filled PEEK (CF30) |
|---|---|---|---|
| Density (g/cm³) | 1.32 | 1.51 | 1.44 |
| Tensile Strength (MPa) | 100 | 165 | 230 |
| Glass Transition Temp (°C) | 143 | 143 | 143 |
| Melting Temperature (°C) | 343 | 343 | 343 |
| Continuous Use Temp (°C) | 250 | 250 | 250 |
| Water Absorption (%) | 0.4 | 0.3 | 0.2 |
| CTE (µm/m·K) | 45 - 50 | 20 - 25 | 15 - 20 |
Reference standard values from ASTM/Victrex datasheets. Actual physical parameters depend on resin batch, orientation of fill fibers, and thermal processing history.
Overcoming PEEK Machining Constraints
High-performance semicrystalline thermoplastics require specialized tooling geometries, disciplined heat evacuation, and stress-neutral fixturing to eliminate deformation, cracking, and post-machining drift.
Thermal Management & Surface Integrity
While PEEK exhibits high continuous use temperatures (250°C), local machining friction can cause softening and micro-cracks. We employ high-speed spindles up to 24,000 RPM, balanced feed rates, and optimized coolant delivery to eliminate thermal buildup, maintain tool sharpness, and safeguard surface integrity.
Controlled Stress-Relief Annealing
Internal residual stress from raw stock extrusion and aggressive material removal can induce warping. For tight geometric tolerances, we execute intermediate and final stress-relief annealing cycles, guaranteeing dimensional stability during service in fluctuating environments.
Uniform Clamping & Custom Fixturing
Standard metallic vise setups easily deform or mark high-value PEEK blocks. We engineer custom soft jaws, vacuum chucks, and conformal nest fixtures to distribute clamping forces evenly, preventing mechanical bowing and structural deflection during heavy roughing and finishing.
Thin-Wall Machining & Vibration Damping
Our 5-axis Mazak C600 infrastructure allows complex geometric access in single setups, reducing secondary re-clamping error. Utilizing high-rake, polished diamond or carbide cutting tools minimizes cutting pressure, delivering thin-wall features without chattering or dimensional taper.
High-Rigidity Mazak Machining Infrastructure
PRECI5 operates 114 production units in Shenzhen, offering scalable capacity from engineering prototypes to continuous volume runs of precision PEEK machined parts.
8× Mazak C600 5-Axis Machining Centers
Configured for complex multi-sided geometries, manifolds, and angled ports requiring single-setup concentricity.
39× Mazak VCN-430AL 4-Axis Centers
Dedicated to volume manufacturing of structural PEEK housings, brackets, connectors, and mounting plates.
Mazak HCN5000 Horizontal Machining Centers
Dual-pallet systems offering multi-face access and continuous production cycles for high-efficiency batches.
Inspection Protocols & ZEISS Metrology
Precision PEEK parts are verified through rigorous metrology protocols to ensure absolute compliance with aerospace, semiconductor, and medical specifications.
- • ZEISS CMM (700×700×600 mm): Full GD&T scanning, profile evaluation, and True Position validation.
- • Optical & Surface Verification: 2.5D vision measuring systems and stylus surface roughness testers.
- • Traceable Control: Full First Article Inspection (FAI), raw resin material certs, and dimensional reports per batch.
Serving Critical Technology Sectors
Engineered for environments where metals corrode, outgas, or conduct electricity, and standard polymers degrade under mechanical and thermal strain.
Semiconductor
Wafer handling chucks, vacuum chamber insulators, chemical-resistant fluid manifolds, and cleanroom wear rings with low ionic contamination.
Medical Equipment
Autoclavable surgical targeting blocks, endoscopic housings, diagnostic instruments, and lightweight components resisting repeated sterilization cycles.
Aerospace & Defense
Lightweight structural brackets, high-altitude cable conduit connectors, avionics thermal insulators, and low-outgassing radar components.
Industrial Automation
High-load wear pads, non-lubricated high-speed bushings, precision pump gears, and valve seats operating in chemically aggressive media.
Design for Manufacturability (DFM) Feedback
Our manufacturing engineers review your CAD models before production to minimize cycle time, avoid warping, and optimize unit costs.
Send Your PEEK Grade + Drawing for Quote
Submit your CAD files (STEP, IGES, DXF, or PDF drawings) along with material grade and quantity. Our technical sales team delivers a comprehensive DFM review and quotation within 24 hours.