When it comes to high-performance plastic components, POM (also known as Delrin® or acetal) is one of the most reliable materials in the game. It’s strong, dimensionally stable, and machines like a dream. But to get the most out of it, you need the right process—CNC precision turning and milling.
Here’s why that combo is the go-to for companies needing tight-tolerance plastic parts that just work.

What Is POM, Really?

POM (Polyoxymethylene) is an engineering thermoplastic known for:

• High stiffness and low friction
• Excellent wear resistance
• Dimensional stability even under stress
• Strong resistance to chemicals and moisture

Why CNC Machining Is Perfect for POM

CNC machining—especially turning and milling—lets you produce incredibly accurate parts from solid POM stock. That’s crucial when you’re working with components like:

• Bushings
• Gears
• Custom spacers
• Sliding mechanisms
• Valve bodies
• Sealing caps
• Mounting brackets

With CNC turning, you can achieve smooth, round features like threads, bores, and shafts. Milling allows you to add flats, pockets, slots, holes, and more—all in one go.

Tight Tolerances? No Problem

POM machines cleanly without melting or gumming up tools, which means:

• Sharper edges and better finishes
• No need for post-processing (in most cases)
• Consistent results, even in high-volume runs

If you need ±0.01 mm tolerances on a thousand parts? No sweat. The right CNC shop can hold those specs day in and day out.

Where POM CNC Parts Shine: Industry Use Cases

• Medical: Surgical handles, inhalers (biocompatible, sterilizable) .

• Electronics: Insulators, connectors (dielectric strength) .

• Automotive: Fuel system components, seatbelt mechanisms .

• Robotics: Gears, cams (wear-resistant, no lubrication needed)

FAQ

1. Are you a manufacturer or a trading company?