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Skip to content Custom PEEK components for industrial equipment, instrumentation, automation, and laboratory devices. TENGHUI provides in-house CNC milling and turning for prototypes, low-volume orders, and repeat production.
We review material availability, part geometry, critical dimensions, and inspection requirements to plan a suitable manufacturing process.
PEEK—polyetheretherketone—is a high-performance thermoplastic considered for demanding mechanical, thermal, and chemical environments. The appropriate grade depends on loading, temperature, exposure conditions, and component design. Material specifications and supply condition are confirmed during quotation.
| Material Characteristic | General Guidance | What to Specify |
|---|---|---|
| Material Grade | This service focuses on unfilled PEEK. Specific brands or modified grades require separate review. | Brand, grade, material standard, and substitution restrictions |
| Mechanical Performance | Offers a useful combination of stiffness, strength, and toughness for engineering components | Loads, support points, allowable deflection, and service life |
| Temperature Performance | Suitable for consideration in elevated-temperature applications; allowable conditions depend on grade, load, and exposure time | Continuous and peak temperatures, duration, and mechanical loading |
| Chemical Compatibility | Resistant to many substances, but suitability must be checked against the actual environment | Chemicals, concentrations, temperatures, and exposure duration |
| Moisture Absorption | Relatively low, although moisture and environmental conditions should still be considered for precision parts | Humidity, immersion conditions, and dimensional requirements |
| Electrical Properties | Unfilled PEEK may be considered for insulating components | Required electrical properties and applicable test conditions |
| Friction & Wear | Performance depends on grade, mating surfaces, speed, load, and lubrication | Contact materials, motion, wear limits, and lubrication |
| Dimensional Stability | Stock condition, machining heat, residual stress, and service temperature affect dimensions | Critical fits, flatness, inspection temperature, and finished-part requirements |
*Use the selected grade’s data sheet for engineering assessment. Melting point, heat deflection temperature, and continuous-use temperature are different measures and should not be used interchangeably.
Application suitability is reviewed against the drawing and operating requirements. Material selection alone does not establish finished-part performance.
Low-wear sliding bushings, thrust washers, guides, and precision alignment spacers operating in dry or lubricated conditions.
High-voltage electrical insulators, thermal barrier standoffs, and rigid structural supports for electrical test fixtures.
Precision analytic instrument housings, sensor brackets, and lightweight structural components requiring chemical resistance.
Selected valve seats, sealing support rings, back-up rings, and manifold components exposed to aggressive chemicals or steam.
Chromatography components, diagnostic device fixtures, and laboratory fluidic modules subject to repeated autoclave cycles.
PEEK components are commonly used with an as-machined finish. Secondary operations should follow functional and dimensional requirements rather than appearance alone.
Parts retain visible tool marks without an additional decorative treatment. This is a practical option for many functional components.
Accessible edges are deburred according to the drawing and agreed requirements to ensure consistent fit and burr-free fluid or sealing interfaces.
Additional finishing can be reviewed for accessible surfaces requiring specified roughness or contact characteristics.
Cleaning methods are selected for material compatibility and expected residues. Parts are packaged to reduce contamination, rubbing, and handling damage.
PEEK can be useful where conventional engineering plastics do not meet the required combination of temperature, mechanical, and chemical performance.
PEEK may be considered when temperature, chemical exposure, or mechanical requirements exceed the capabilities of a suitable POM or nylon grade.
It is not automatically the best option for every component. Material cost, machining, wear, stiffness, and service conditions should be assessed together.
Share the application requirements so manufacturing options can be reviewed.
Our PEEK machining service focuses on unfilled material, subject to stock availability and drawing review.
If your project specifies a brand, grade, reinforcement, or material standard, include it with the inquiry. Availability and machining suitability must be confirmed before quotation.
No material substitution is made without agreement.
There is no single temperature limit suitable for every PEEK component.
Allowable operating conditions depend on the grade, loading, exposure time, geometry, environment, and acceptable deformation. A temperature quoted on a material data sheet should not automatically be treated as a finished-part guarantee.
Provide continuous and peak temperatures together with the relevant mechanical and chemical conditions.
Tolerances are confirmed after reviewing part size, geometry, material condition, and inspection requirements.
Thin walls, deep pockets, thermal expansion, and residual stress can affect final dimensions. Mark critical fits, flatness, threads, and roughness requirements on your drawing.
Inspection conditions should be agreed for precision components, particularly where operating temperature differs from measurement temperature.
We review stock selection, workholding, material removal, and machining sequence before production.
Staged roughing and finishing may be used for sensitive components. Additional stress-relief treatment can be evaluated where appropriate, following guidance for the selected stock material.
These measures help manage movement but do not eliminate dimensional changes caused by service temperature or loading.
In some applications, PEEK can reduce component weight or provide useful insulation and chemical-resistance characteristics.
Replacement requires review of stiffness, creep, thermal expansion, wear, fastening, and operating loads. A metal design may require modification before it can function reliably in plastic.
PEEK components can be reviewed for laboratory fixtures, insulators, housings, and selected fluid-handling applications.
Please provide the operating environment, chemicals, cleaning methods, and performance requirements. Specialized cleanliness, testing, and documentation must be confirmed during quotation.
No implantable or patient-contact suitability is implied.
Lead time is confirmed after reviewing material availability, geometry, quantity, and inspection requirements.
PEEK stock sourcing, staged machining, and specialized requirements may extend the schedule. Include your target delivery date so we can assess a practical production plan.
Please provide:
Upload your 2D drawings (PDF/DWG/DXF) and 3D CAD files (STEP/IGES). We evaluate part geometry, materials, and tolerances within 24 hours.
Once we receive your design files, our senior manufacturing engineers will manually perform a comprehensive DFM review and deliver an accurate, optimized quote within 24 hours.
