Yes, we machine plastics. POM, PEEK, ABS, PC, PMMA, PA, PP, HDPE and carbon fiber, cut on the same 127 CNC machines that run our metal work, with tolerances held to ±0.005 mm.
Most plastic machining problems are predictable. Here is what we see when parts arrive from other shops.
Too much spindle speed and no air blast. The cutter rubs instead of cutting, the chip welds back onto the wall, and the finish looks torn. On POM and HDPE this happens fast because the material does not pull heat away from the edge.
Plastic absorbs moisture and releases internal stress when you cut it. A flat plate machined dry in the morning can bow overnight. Bore diameters drift. If the shop ships on the day of cutting, the geometry at your incoming inspection is not the geometry that was measured.
Plastic is not stiff. A 1.5 mm wall on a PEEK housing will sing if the shop uses the same toolpath it uses for aluminum. Light radial passes, sharp tooling and a fixture that supports the wall matter more than spindle power.
A quote built from a generic plastic rate hides the real cost. PEEK and carbon fiber need slower feeds, dedicated tooling and more inspection time. The number looks low until the first article fails, and then the schedule and the price both change.
Same machines, different parameters, and a plan for heat and movement.
Plastic cuts with a sharp edge and a clear chip. We pick tool geometry, helix and coating by resin, then set spindle speed and feed to keep the chip thick enough to carry heat away. Compressed air replaces flood coolant on most jobs so the part does not sit in fluid and swell.
PEEK and carbon fiber run slower with more tool changes. ABS and PC cut closer to aluminum rates. Free-cutting POM sits in the middle and holds tight numbers well.
Plastic gives under clamping pressure, so we build soft jaws, vacuum plates and support rings that hold the part without crushing it. Thin-wall housings get a support collar for the finishing passes. For long parts, we machine in two or three setups and re-datum from a machined surface, not from the saw cut.
When a part is moisture-sensitive, we ask what the service environment looks like. A PA or POM component that runs in a dry enclosure after a wet shipping route will move. Knowing that up front decides the order of operations.
A starting point for common parts. Your service temperature and chemical exposure decide the final call.
| Resin | Good for | Watch out for |
|---|---|---|
| POM (Delrin) | Bushings, gears, wear strips | Poor bond for adhesives |
| PEEK | High temperature, chemical service | Slow to cut, higher cost |
| ABS | Enclosures, brackets, covers | Low stiffness, low heat limit |
| PC | Impact covers, guards, lenses | Stress cracks near sharp corners |
| PMMA (acrylic) | Windows, light guides | Brittle, chips easily |
| PA (nylon) | Wear parts, clips, rollers | Absorbs moisture, moves |
| PP / HDPE | Tanks, seals, chemical parts | Flexes under light cuts |
| Carbon fiber | Stiff lightweight panels | Abrasive, needs special tooling |
One shop for the plastic part, the metal bracket that holds it and the finish on both.
Plates, covers, manifolds and housings up to 4,000 mm. Good for flat parts with pockets and drilled holes.
Multi-face parts in one setup. Ports, angled faces and contoured housings that would need three fixtures on a 3-axis machine.
Bushings, rollers, spacers and threaded plastic parts. Mill-turn centers cover cross holes and slots without a second operation.
One-off plastic prototypes to check fit before tooling. Same inspection standard as production parts.
Bead blasting, tumbling, brushing and polishing. Laser marking with a minimum character height of 1.5 mm.
Raw material check, in-process monitoring and final inspection on 100% of parts. Reports on request.
What the machines and the quality system cover.
| Item | Range |
|---|---|
| Maximum part size | 4,000 mm |
| Tolerance | ±0.005 mm (±0.0002 in) |
| As-machined finish | Ra 1.6–3.2 μm |
| Fine finish | Ra 0.2–0.8 μm |
| Order quantity | One prototype to 10,000+ parts |
| Lead time | Quote in 12 hours, parts ship in 3–5 days |
| Certifications | ISO 9001, IATF 16949, ISO 13485, ISO 27001 |
Fifteen years cutting plastics and metals in Dongguan and Singapore.
16 simultaneous 5-axis centers, 12 four-axis mills, 27 three-axis machines and 16 mill-turn centers.
Held on plastic parts with the right tooling, fixtures and finishing sequence.
Production can begin within 24 hours of a released order.
Across parts we inspect before shipment.
Historical late-delivery probability on shipped orders.
Cleanable PEEK and PC housings with tight bore alignment.
POM and PA jigs, insulators and test fixtures for line use.
Thin-wall PP and PC parts that must stay flat after machining.
Carbon fiber and PEEK components for abrasive or hot service.
We machine ABS, PC, PMMA, POM, PA, PEEK, PP, HDPE and carbon fiber composites, plus other resins on request.
The material list on your drawing is the starting point. If a resin is not in our standard list, we will say so before quoting rather than after the first article.
Yes, on the right part. Tolerance depends on wall thickness, resin and how much material you remove.
Thin unsupported walls and moisture-sensitive nylon are harder to hold. A PEEK or POM part with a solid cross section reaches ±0.005 mm without special measures. Send the drawing and we will tell you which dimensions are realistic.
Compressed air and vacuum clear the chip and keep the part cool. Flood coolant is avoided on most jobs because plastic absorbs fluid.
We set spindle speed and feed so the chip is thick enough to carry heat away. Rubbing is what melts the edge, not cutting speed by itself.
It can, if the shop finishes in one pass and ships the same day. We rough, let the part rest, then take the finishing cuts.
For moisture-sensitive resins we ask about the service environment. That decides the order of operations and how much stock to leave.
Carbon fiber machines well but it is abrasive. It needs dedicated tooling and a fresh setup per new part to set feeds and speeds.
Edge quality and delamination are the two things to watch. We run test cuts on a new geometry before committing to the full run.
None. We run from one prototype to 10,000+ part runs.
For batch production we supply a sample for your check before the mass run. Single samples are charged.
Quotation and free DFM analysis come back within 12 hours. Production can start within 24 hours of a released order, and parts ship in 3–5 days.
Uploads are secure and confidential. An NDA is available on request.
Yes. Bead blasting, tumbling, brushing and polishing are done in house. Laser marking has a minimum character height of 1.5 mm.
Anodizing and plating are metal processes and do not apply to plastic parts.
Upload the drawing and we will return a quote and a free DFM analysis within 12 hours.
12-hour quoteNo minimum order quantity100% inspection
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Upload your 3D model or 2D drawing and get a quotation with a free DFM analysis. Maximum processing size 4,000 mm.
CNC Metals 13 grades
CNC Plastics 10 grades
Machines & processes 12 options
Surface & post-processing 10 options
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