CNC Machining Plastic Materials
Explore our commonly used CNC plastic machining materials, from cost-effective ABS to high-performance PEEK, PPSU, and PPS. Perfect for prototypes, production parts, and regulated industries.
Beska – Best Quality with Competitive Price.
With expertise in sheet metal fabrication and CNC machining, we’re here.
As a custom CNC machining manufacturer, we apply a variety of plastic materials to create components from low-volume prototyping to mass production. Here is a brief introduction to the properties and applications of the common plastic materials used in CNC machining for your reference: ABS, PC, PMMA, POM, Nylon, PEEK, and HDPE. If you need any guidance, the Beska team is glad to help you to select the best plastic for your machining project.
| Plastic Material | Key Properties | Typical Applications | Machinability | Lead Time (days) |
ABS (Acrylonitrile Butadiene Styrene)
| Lightweight, impact-resistant, good dimensional stability, easy to finish | Prototypes, enclosures, consumer products | 5 (Excellent) | 5–7 |
POM / Delrin (Acetal)
| High strength, low friction, excellent wear resistance | Precision gears, bushings, mechanical parts | 4 (Very Good) | 6–8 |
Nylon (PA6/PA66)
| High wear resistance, good toughness, can absorb moisture | Industrial components, bearings, wear pads | 3 (Moderate) | 6–8 |
Polycarbonate (PC)
| High impact strength, optical clarity, good temperature resistance | Transparent covers, machine guards, housings | 4 (Very Good) | 6–9 |
PEEK (Polyether Ether Ketone)
| High temperature, chemical and wear resistance, lightweight | Aerospace, medical implants, high-performance parts | 2 (Fair) | 8–12 |
PTFE (Teflon)
| Excellent chemical resistance, non-stick, low friction | Seals, gaskets, chemical handling components | 1–2 (Difficult) | 8–12 |
HDPE / UHMW-PE
| High impact, moisture-resistant, low cost | Food processing, liners, wear strips | 3 (Moderate) | 6–9 |
PVC
| Good chemical resistance, rigid, cost-effective | Pipes, fittings, fluid handling | 4 (Very Good) | 6–9 |
Acrylic (PMMA)
| High clarity, good weatherability, cost-effective | Display panels, signage, light covers | 4 (Very Good) | 6–9 |
Polypropylene (PP)
| Chemical-resistant, lightweight, low cost, good fatigue resistance | Laboratory equipment, chemical tanks, pump parts | 4 (Very Good) | 6–9 |
PET / PETG
| Excellent dimensional stability, good wear resistance, FDA compliant | Food processing parts, bearings, rollers, precision guides | 4 (Very Good) | 6–9 |
PPSU (Polyphenylsulfone)
| Exceptional hydrolysis resistance, high heat resistance, sterilizable | Medical devices, aerospace interior components | 3 (Moderate) | 8–12 |
PPS (Polyphenylene Sulfide)
| Excellent chemical resistance, high dimensional stability, flame-retardant | Automotive parts, electronic housings, pump components | 2–3 (Fair–Moderate) | 8–12 |
PEI (Ultem)
| High strength, flame-retardant, excellent chemical resistance, stable at high temperatures | Aerospace components, medical sterilization trays, electrical connectors | 2–3 (Fair–Moderate) | 8–12 |
FAQ
Yes. We offer deburring, polishing, threading, and integration of metal inserts to make your CNC plastic parts ready for assembly.
ABS, POM/Delrin, and Acrylic are rated 4–5 (Very Good–Excellent) in machinability. They produce smooth finishes and faster lead times.
ABS is low-cost and great for prototypes or housings. Delrin is stronger and more stable for functional, long-life parts.
Yes. PEEK, PTFE, UHMW-PE, and certain Nylon grades meet FDA or ISO standards for clean, safe applications.
Mostly limited by stock size and machine travel; plastics are lightweight and easy to fixture even at larger sizes.
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