Precision CNC
Machining Plastics

From highly machinable Delrin and optical-grade Acrylic, to extreme-temperature super-polymers like PEEK and Ultem. We strictly manage thermal expansion, internal stress, and coolant compatibility, leveraging advanced 5-axis technology to achieve flawless surface finishes and precise tolerances down to ±0.05mm.

POM (Acetal / Delrin®) CNC Machining

POM (Acetal / Delrin®)

Common Grades

POM-H (Delrin) / POM-C (Copolymer)

The machinist's dream plastic. Offers high stiffness, low friction, and exceptional dimensional stability. The benchmark material for precision gears and manifolds.

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PEEK CNC Machining

PEEK

Common Grades

Unfilled / GF30 / CF30 / Bearing Grade

The pinnacle of high-performance polymers. Withstands 250°C (482°F) continuous use. Extensively machined for aerospace structural components and medical implants.

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ABS CNC Machining

ABS

Common Grades

General Purpose / Flame Retardant / High-Heat

Highly machinable and impact-resistant. The most cost-effective thermoplastic for functional prototyping, electronic enclosures, and snap-fit assemblies.

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Acrylic (PMMA) CNC Machining

Acrylic (PMMA)

Common Grades

Extruded / Cast PMMA

Delivers an astonishing 92% light transmission. Expertly CNC milled and vapor-polished for microfluidic medical manifolds, light guides, and optical lenses.

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Polycarbonate (PC) CNC Machining

Polycarbonate (PC)

Common Grades

Lexan® / Makrolon® / PC-GF30

Features impact resistance 250 times greater than glass. The ultimate transparent choice for bullet-resistant sight glasses, machine guards, and high-pressure fluid manifolds.

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PEI (Ultem) CNC Machining

PEI (Ultem)

Common Grades

Ultem 1000 / Ultem 2100 / Ultem 2300

An advanced amorphous thermoplastic with a 170°C rating. Inherently flame retardant (UL94 V-0). The uncompromising standard for aerospace interiors and medical instruments.

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Nylon (PA) CNC Machining

Nylon (PA)

Common Grades

PA6 / PA66 / PA66-GF30

Renowned for its toughness and self-lubricating properties. Widely used to replace metal in heavy-duty power transmission gears, pulleys, and sliding wear pads.

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PTFE (Teflon™) CNC Machining

PTFE (Teflon™)

Common Grades

Virgin PTFE / Glass-Filled / Carbon-Filled

Provides the lowest coefficient of friction of any solid material. Absolutely chemically inert. Precision turned for high-performance seals, O-rings, and dry-running bearings.

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Polyethylene (PE) CNC Machining

Polyethylene (PE)

Common Grades

HDPE / UHMW-PE

Features extreme wear resistance and virtually zero moisture absorption. The undisputed choice for packaging conveyor star wheels, food processing guides, and marine wear strips.

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PET (Ertalyte®) CNC Machining

PET (Ertalyte®)

Common Grades

Unfilled PET / PET-TX (Lubricated)

Offers superior dimensional stability compared to Nylon due to its extremely low moisture absorption. FDA compliant for food and beverage processing machinery.

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Polypropylene (PP) CNC Machining

Polypropylene (PP)

Common Grades

Homopolymer / Copolymer

Highly versatile and lightweight (density < 1.0). Delivers extraordinary resistance to corrosive acids, making it essential for semiconductor wet benches and chemical valves.

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FR4 CNC Machining

FR4

Common Grades

FR4 (UL94 V-0)

A woven fiberglass and epoxy resin composite. Offers immense structural rigidity and ultimate dielectric strength. Expertly milled with PCD tooling for PCB test fixtures.

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G-10 CNC Machining

G-10

Common Grades

Garolite G-10 (Halogen-Free)

Structurally identical to FR4 but without the flame-retardant bromine additives. Maintains immense strength in deep-freeze cryogenic and extreme marine environments.

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PPSU CNC Machining

PPSU

Common Grades

Radel®

An elite medical-grade plastic. Boasts virtually unbreakable impact strength and can withstand 1,000+ steam autoclave cycles without degrading. Ideal for surgical tools.

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PVC CNC Machining

PVC

Common Grades

Rigid PVC (Type 1) / CPVC

Highly cost-effective, rigid, and inherently flame retardant. CNC machined into complex fluid routing manifolds, electrical connector housings, and water treatment parts.

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End-to-End Solutions

Our Polymer Machining Capabilities

5-Axis CNC Milling

Process complex geometries in a single setup. Ideal for intricate PEEK aerospace brackets, medical enclosures, and multi-sided fluid routing manifolds.

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Precision CNC Turning

Utilizing high-speed lathes with razor-sharp positive-rake tooling to turn highly concentric Teflon seals, Nylon gears, and Delrin bearings without melting the material.

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Vapor Polishing & Annealing

Beyond strict thermal annealing to relieve internal stress, we offer advanced chemical vapor polishing to restore 100% optical clarity to machined Acrylic (PMMA) and Polycarbonate components.

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Get Your Answers

Plastic Machining FAQs

Do you perform thermal annealing on plastic parts?

Yes. Extruded plastic billets, especially high-performance polymers like PEEK, Ultem, and Polycarbonate, contain high internal stress. We perform strict oven annealing cycles before and during machining to relieve this stress, preventing the parts from warping or cracking (crazing) after delivery.

What are your standard tolerances for plastics?

Plastics have a much higher coefficient of thermal expansion than metals. For rigid plastics like Delrin and PEEK, we can typically hold ±0.05mm. However, for softer plastics like UHMW, PTFE, and Nylon (which absorbs moisture), we recommend designing with a standard tolerance of ±0.1mm to ±0.15mm.

Can you restore optical clarity to clear plastics?

Absolutely. CNC machining leaves a frosted surface on clear materials. We utilize chemical vapor polishing to instantly melt the microscopic tooling marks on Acrylic (PMMA) and Polycarbonate (PC), restoring internal fluid channels and complex external geometries to pristine, glass-like clarity.

How do I choose the right plastic for my project?

It depends on your operating environment. For low friction, choose Delrin or PTFE. For extreme heat and strength, select PEEK or Ultem. For unbreakable transparency, opt for Polycarbonate. Our engineering team provides free DFM (Design for Manufacturability) consulting to help you select the optimal polymer grade.

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