Material
PEEK Machining & Custom Parts
Precision Machining India supplies OEMs and procurement teams worldwide with PEEK Machined Parts, made in our ISO 9001:2015 certified CNC machining plant in Pune, India.
ISO 9001:2015 Certified
Documented quality management system
Mitutoyo Quality Inspection
Calipers, micrometers, height gauge, DTIs
Export-Ready Packaging
VCI film, ISPM-15 wooden crates
RFQ Response in 24 Hours
Quote within one working day
NDA Available
Your drawings stay confidential
On this page15 sections
Direct answer
Which PEEK grades do you machine?
Yes. Precision Machining India machines PEEK parts to customer drawings at its ISO 9001:2015 certified plant in Pune, India, in Unfilled PEEK, 30% glass-filled, 30% carbon-filled, bearing grade. Work is turned on CNC turning centres and milled on a 3-axis VMC with a 800 × 500 × 400 mm bed, holding ±0.02 mm typical. Grades are stocked or sourced against your specification, and EN 10204 3.1 mill certificates are supplied on request. Quantities run from a single prototype to 10,000+ pieces with no fixed minimum, and RFQs are answered within 24 hours.
- Grades: Unfilled PEEK, 30% glass-filled, 30% carbon-filled, bearing grade
- Tolerance: ±0.02 mm typical
- Finishes: As-machined, polished
- Typical parts: semiconductor fixtures, insulators, pump wear rings and medical device parts
- Quantities: single prototype to 10,000+ pieces, no fixed minimum order
- Documents: dimensional inspection report with the shipment, EN 10204 3.1 mill certificate on request
At a glance
Materials & technical specifications
PEEK machining notes: Machined with carbide, light finishing passes and annealing where tight tolerance is required.
- Process
- PEEK Machining
- Materials
- PEEK
- Grades
- Unfilled PEEK, 30% glass-filled, 30% carbon-filled, bearing grade
- Key properties
- Continuous service to 250 °C, high strength and stiffness, chemical and hydrolysis resistant, low outgassing.
- Standard tolerance
- ±0.02 mm typical
- Surface finish
- As-machined, polished
- Max turning size
- Ø400 × 1200 mm (conventional), bar work on CNC lathes
- Max milling envelope
- 800 × 500 × 400 mm (VMC)
- Threading
- M3–M32 auto tapping; metric, BSP, NPT, UNC/UNF
- Batch size
- 1 prototype to 10,000+ pieces
PEEK Machined Parts: overview
High-temperature PEEK parts for demanding OEM applications. PEEK rod and plate are machined with carbide tooling, light finishing passes and controlled coolant to avoid heat build-up and internal stress.
Every order is programmed in VISI or Delcam CAM, machined on CNC turning centres and VMC, and inspected in our Mitutoyo quality lab before it is packed and shipped.
PEEK Machining capability
Our peek machining cell handles single prototypes through repeat batches of tens of thousands. Typical work includes bushings, valve components, insulators, custom fasteners and seals & rings.
Before quoting, our engineers review your STEP, IGES or PDF drawing for machinability and suggest changes that reduce cost without affecting function.
- CNC turning centres (LMW, Jyoti, Ace Micromatics): Shafts, bushings, fittings, turned plastic parts
- Vertical machining centre (VMC) (Ace Micromatics, FANUC control): 3-axis milling, bed 800 × 500 × 400 mm
- Auto tapping machines (M3 to M32 capacity): High-volume internal threading
- Conventional lathe (Uma Enterprises): Turning up to Ø400 × 1200 mm
- Band saw (Rajlaxmi): Bar stock cutting and blank preparation
Tolerances & surface finish
Standard capability for this work is ±0.02 mm typical. Bores can be held to H7 and bearing seats to h6/g6 fits. Where your drawing calls for tighter limits, we agree the critical characteristics up front and record them on the inspection report.
As-machined finishes of Ra 1.6–3.2 µm suit most functional surfaces. For seals, bearing journals and sliding fits we run a fine finishing pass to reach Ra 0.8 µm.
Plating, anodising, passivation and heat treatment are arranged through qualified partners and re-inspected in-house before packing.
Quality inspection process
Our ISO 9001:2015 system covers incoming material, first-article inspection, in-process checks and final inspection. Records are kept for every batch so any part can be traced back to its material heat.
Every shipment includes a dimensional inspection report, with material test certificates (EN 10204 3.1) on request.
- Mitutoyo digital vernier calipers
- Mitutoyo height gauge
- Granite surface plate
- Mitutoyo outside micrometers
- Inside calipers and bore gauges
- Dial test indicators
PEEK grades we machine
The grade decides cost, cycle time and how the part performs. Use these notes to confirm the designation before you release the drawing.
Unfilled PEEK
Natural or black
- Condition
- Extruded rod and plate
- Key property
- Tough, dimensionally stable at temperature, and a good electrical insulator
- Typical use
- Insulators, semiconductor fixtures, non-implant medical device parts
30% glass-filled PEEK
Glass fibre reinforced
- Condition
- Extruded rod and plate
- Key property
- Much stiffer and more creep resistant with lower thermal expansion; harder on tools and on a soft counterface
- Typical use
- Loaded brackets, pump and valve parts working hot
30% carbon-filled PEEK
Carbon fibre reinforced
- Condition
- Extruded rod and plate
- Key property
- The stiffest and most stable PEEK; conducts heat better and is electrically conductive
- Typical use
- Wear rings, bushings and structural parts under load
Bearing-grade PEEK
Carbon, PTFE and graphite filled
- Condition
- Extruded rod and plate
- Key property
- The lowest friction and wear rate of the PEEK grades, suited to dry running
- Typical use
- Unlubricated bearings, wear rings, slide pads
Choosing between Delrin and PEEK
Buyers usually weigh PEEK against Delrin. Here is how the two compare on the points that decide the order.
| Criterion | Delrin (Acetal / POM) Stiff, stable and the best value for precision plastic parts | PEEK The metal-replacement polymer for heat and load |
|---|---|---|
| Machinability and cycle time | The best-behaved machinable plastic: clean chips, crisp edges and tight tolerances with standard tooling, provided cutting heat is kept off the surface. | Predictable with carbide tooling and light finishing passes. Filled grades are abrasive to tools, and stock is stress-relieved between passes where the tolerance is tight. |
| Tolerance we hold | ±0.02 mm typical | ±0.02 mm typical |
| Service temperature | Continuous service to about 100 °C. POM-C copes with hot water and alkaline conditions better than the homopolymer. | About 250 °C continuous service, with a glass transition near 143 °C — the highest of the plastics we machine. |
| Corrosion and chemical resistance | Sound with fuels, oils, solvents and neutral chemicals. Strong acids and oxidising agents attack it, and prolonged chlorinated water is best avoided. | Resistant to most chemicals and to hydrolysis in hot water and steam. Concentrated sulphuric acid attacks it. |
| Relative cost | Moderate material cost and fast cycle times, which is why it is usually the cheapest route to a close-tolerance plastic part. | The highest material cost of the machinable plastics, several times acetal, so section size and stock allowance matter to the price. |
Values are indicative figures from published grade data, given to guide specification rather than to qualify a design; confirm them against the mill or polymer data sheet for your service conditions. Material selection remains your design responsibility. Grades are stocked or sourced per order, with EN 10204 3.1 certificates on request.
Industries we serve
This work is used across medical devices, automotive, hydraulics and pumps & valves. Medical Devices customers, for example, need clean, burr-free parts in biocompatible materials with lot traceability.
Our core customers are corporate OEMs in automotive, hydraulics, pumps & valves and general engineering, plus multinational companies that need PTFE, Nylon, Delrin and PEEK parts machined to drawing.
Export packaging & logistics
We export to 45+ countries from Nhava Sheva (JNPT), with sea transit of about 4–7 days to the Gulf, 18–28 days to Europe and the UK, and 25–35 days to North America. Air freight is available for urgent orders.
All parts are protected with VCI film and packed in ISPM-15 crates. We quote EXW, FOB or CIF to suit your logistics.
Why choose an Indian machining partner
India has become a leading China+1 destination for precision machined components. For international buyers, we combine competitive piece prices with an ISO 9001:2015 quality system, English-speaking engineers and drawings worked to ISO, DIN and ASME standards.
We reply to RFQs within 24 hours, sign NDAs before receiving drawings, and give you one point of contact from quote to delivery.
- ISO 9001:2015 certified
- Mitutoyo quality inspection
- Export-ready packaging
- RFQ response in 24 hours
- NDA available
Specifying PEEK on your drawing
Most re-quotes on PEEK parts come from a missing grade, condition or datum rather than from the geometry.
Put this on the drawing
- Name the polymer and the filler — Unfilled PEEK, for example — because filled and unfilled grades cut and move differently.
- Give the service temperature, the chemicals in contact and the mating material, so the grade can be confirmed against the maker's data sheet.
- Ask for the tolerance you actually need: ±0.02 mm typical is standard, and tighter limits mean extra passes and stress relieving.
- State whether dimensions apply as machined or after conditioning at a stated temperature and humidity.
- Keep wall thicknesses sensible and corners radiused so parts do not deflect under clamping.
- Ask for individual bagging; machined plastics scratch and pick up contamination in bulk packing.
What causes scrap, delay or extra cost
- Metal tolerances on a polymer: a few degrees of temperature change moves a 100 mm plastic part more than ±0.01 mm.
- Thin unsupported walls and deep narrow slots, which deflect away from the tool and spring back after the cut.
- Press fits into metal with no allowance for the difference in thermal expansion across the working temperature range.
- Acceptance measured straight off the machine; parts must stabilise at a known temperature first.
- Biocompatibility or implant approval. The certification held is ISO 9001:2015, not ISO 13485; what is supplied is the material maker's data sheet and batch documentation.
- Reports from a CMM or in-house material testing — neither exists here; dimensional checks are made with Mitutoyo hand instruments on a granite surface plate.
How to order
Getting a quote for PEEK Machined Parts is simple:
- Send your drawing (PDF) and 3D model (STEP or IGES) with material, quantity and destination.
- Our engineers review it and send a quote with lead time within 24 hours.
- Approve samples or a first-article report for new parts.
- We machine, inspect, pack and ship with full export documents.
PEEK parts: what decides cost and performance
Properties quoted here are those of the material as supplied. Pressure ratings and application approval stay with your own design and qualification process.
Service temperature
About 250 °C continuous service, with a glass transition near 143 °C — the highest of the plastics we machine.
Dimensional stability
Predictable with carbide tooling and light finishing passes. Filled grades are abrasive to tools, and stock is stress-relieved between passes where the tolerance is tight. Parts are measured after they have stabilised in temperature, not straight off the machine.
Chemical compatibility
Resistant to most chemicals and to hydrolysis in hot water and steam. Concentrated sulphuric acid attacks it.
Tolerance and fit
Standard capability on PEEK is ±0.02 mm typical. Closer limits are possible on selected diameters when the stock is stress-relieved and the finishing pass is light.
Electrical properties
Unfilled and glass-filled grades are insulators; carbon- and metal-filled grades conduct, so state on the drawing if the part has to isolate.
Handling and packing
As-machined, polished. Parts are bagged to keep sealing and sliding faces free of scratches and metallic contamination, then crated in ISPM-15 heat-treated timber.
Frequently asked questions
Get a quote in 24hWhat tolerances can you hold for PEEK Machined Parts?
Standard capability is ±0.02 mm typical. Bores to H7 and shaft fits to h6/g6 are routine; tighter limits are agreed per drawing.
Are you ISO certified?
Yes. We are ISO 9001:2015 certified. We do not hold AS9100 or ISO 13485, but we work under customer quality plans and supply full inspection reports and material certificates.
What files do you need for a quote?
A PDF drawing with tolerances plus a STEP or IGES model is ideal. Include material, quantity, finish and destination. We reply within 24 hours.
What is your minimum order quantity?
There is no fixed MOQ. We machine single prototypes, low-volume batches and high-volume production runs.
Do you export?
Yes. We export to 45+ countries across North America, Europe, the Middle East, Africa, Asia-Pacific and Latin America.
Which PEEK grades do you machine?
Unfilled PEEK, 30% glass-filled, 30% carbon-filled, bearing grade. Other grades on request.
Keep exploring
Related capabilities, materials and markets
Everything below is machined in the same Pune plant to the same ISO 9001:2015 system. Follow whichever is closest to the part you are sourcing.
Request for quotation
Send your drawing. Get a quote in 24 hours.
Upload STEP, IGES or PDF files. NDA available on request. Quoting: PEEK Machined Parts.