POM Sheet (Polyoxymethylene / Acetal) is a precision engineering plastic sheet offering high mechanical strength, excellent dimensional stability, low friction, and very good machinability. It is widely used for CNC-machined components, gears, bushings, sliders, and moving parts in industrial machinery where tight tolerances and smooth motion are required.
What is POM Sheet?
POM Sheet (Polyoxymethylene / Acetal) is a semi-crystalline engineering plastic widely used
in industrial applications due to its high mechanical strength, excellent dimensional stability,
low coefficient of friction, and outstanding machinability.
POM Sheet is particularly suitable for manufacturing precision components, sliding parts, and
wear-exposed elements where tight tolerances and consistent performance are required.
Engineering advantages of POM Sheet
- High mechanical strength: Suitable for load-bearing and pressure-exposed parts.
- Excellent dimensional stability: Minimal deformation in tight-tolerance components.
- Low friction behavior: Ideal for sliding and moving applications.
- Excellent CNC machinability: Clean cutting and high surface quality for precision parts.
- Very good wear resistance: Extended service life in dynamic contact applications.
- Low moisture absorption: Stable behavior in humid environments.
- Good electrical insulation: Suitable for electrical and electronic components.
Typical applications of POM Sheet
- Precision gears
- Bushings and bearing components
- Rings and rotating parts
- High-precision CNC-machined components
- Sliders and low-friction wear elements
- Motion-transmission and linkage parts
- Packaging machinery and industrial equipment
Typical technical data of POM Sheet
| Property | Typical value |
|---|---|
| Density | 1.39 – 1.41 g/cm³ |
| Tensile strength | 60 – 70 MPa |
| Hardness (Shore D) | 80 – 85 |
| Service temperature | -40°C to +120°C |
| Moisture absorption | Low |
| Wear resistance | Very good |
Common POM sheet grades
- POM-C (Copolymer): Widely used grade with good dimensional stability and balanced performance.
- POM-H (Homopolymer): Higher stiffness and strength, often selected for heavier-duty applications.
- Filled / reinforced POM: Modified grades designed for specific wear or load requirements.
Frequently asked questions about POM Sheet
How does POM compare to polyamide (PA)?
POM typically offers better dimensional stability and lower friction, while polyamide is often
selected when higher toughness or impact resistance is required.
Is POM Sheet suitable for CNC machining?
Yes. POM is one of the preferred materials for precision CNC machining and tight tolerances.
In which industries is POM Sheet commonly used?
Industrial machinery, packaging, automotive, electronics, and precision mechanical applications.
For selecting the most suitable POM Sheet for your application, contact the technical team at Tose’e Teflon.