About

CNC machined acetal (POM-C) is a versatile engineering thermoplastic favored for its superior balance of strength, stiffness, and tribological properties. As a copolymer, it provides better thermal stability and chemical resistance than its homopolymer (Delrin) counterparts, specifically resisting centerline porosity. Its naturally low coefficient of friction and high wear resistance make it excellent for moving mechanical assemblies. With near-zero moisture absorption, it maintains tight tolerances in humid environments. Common use cases include gears, valves, and food-processing components.

Technical Details

Accuracy

±0.2% (lower limit of ±0.13 mm)

Density

1.41 g/cm³

Min. wall thickness

-

Tensile strength

60 - 70 MPa

Tensile modulus

2500 - 3100 MPa

Tensile elongation

20 - 60%

Flexural strength

80 - 100 MPa

Flexural modulus

2500 - 3000 MPa

HDT (0.45 MPa)

160 - 170°C

HDT (1.8 MPa)

100 - 120°C

Embossing

min. 0.3 mm

Engraving

min. 0.3 mm

Warping risk

N/A

Maximum printing dimensions

1,200 × 1,100 × 1,000 mm