pom cnc machining

CNC Machining in POM Material

At Jiangzhi, we specialize in POM CNC machining (also known as Delrin CNC machining) to deliver strong, wear-resistant parts with exceptional dimensional stability. Our CNC POM parts combine low friction, excellent toughness, and tight tolerances, helping you accelerate time-to-market and reduce manufacturing risk. We bring your custom Delrin part designs to life with precision and care.

Thanks to our deep experience in machining acetal plastic, we can efficiently process complex geometries, thin walls, and intricate cuts. From material selection to post-machining finishing, we offer complete, customized CNC machining services that support your goals in industries such as: Automotive (bushings, gears, housings), Electronics (insulating components, structural parts), Industrial equipment (rollers, spacers, bearings), Medical (instrument handles, diagnostic brackets).

POM CNC Machining Capabilities & Options

The following CNC  POM machining capabilities options are provided as a general reference and can be customized according to part requirements.

Parameter Recommended Range
Max Part Size 1000×600×300 mm
Color Options Natural white / Black / Limited custom
Surface Finishes As-machined / Matte machined / Light polished
Tolerances ±0.02–0.05 mm
Cost ⭐⭐⭐☆☆

Acetal Machining Material Properties Machining

CNC machining Delrin (POM) is widely favored in engineering for its low friction, high stiffness, and excellent precision. Known for outstanding wear resistance, dimensional stability, and smooth finishes straight from the mill, acetal plastic performs reliably in both dry and lubricated environments, making it ideal for gears and custom mechanical parts.
Tensile Strength, Yield (MPa) Elongation at Break Hardness Impact Strength Heat Deflection Heat Deflection Temperature Melting Point
60–70MPa 20–60% R120 90–130J/m 110°C 100–120°C 165–175°C

Advantages & Disadvantages of CNC Machining Delrin

Selecting CNC POM plastic machining is a smart choice for precision parts—but knowing the pros and cons of custom CNC machined POM components is key to maximizing performance and efficiency.

Advantages

Disadvantages

POM CNC Parts Surface Treatment

POM (Polyoxymethylene, also known as Acetal) is commonly used for CNC parts such as gears, bushings, sliders, bearings, and mechanical structural components. It has excellent wear resistance, low friction, high dimensional stability, and is ideal for functional parts rather than decorative applications.
Mechanical polishing or tumbling can remove machining marks and smooth the surface, reducing friction for moving parts like gears, sliders, or bearings. This also improves assembly fit and reduces wear.
For high-wear applications, POM parts can be coated with PTFE, dry-film lubricants, or other low-friction coatings to extend service life and improve sliding performance.
Laser marking or engraving is suitable for part identification, logos, or assembly marks. POM responds well to laser marking without affecting structural integrity.

Yes! POM or Delrin is one of the easiest engineering plastics to machine. It delivers strong, precise parts with excellent surface finishes.

Delrin is a brand name for acetal homopolymer. POM also includes copolymers. Both are used in CNC POM machining and offer excellent mechanical properties.

Yes, but we recommend optimized designs. Our team will work with you to ensure dimensional stability and performance in thin-wall applications.

For low volumes, prototypes, or parts needing high accuracy, CNC machining Delrin is faster, cheaper, and more flexible than injection molding.

Yes! While engraving is more common in CNC acrylic, we also offer custom marking on POM parts via laser etching or mechanical engraving.

You can request a rough estimate without a CAD file, but for accurate pricing, please upload your drawing or 3D model.

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