POM-C - Shapeways
POM-C
CNC
Strong and Rigid, Engineering Plastic, CNC Machined, POM-C, Polyoxymethylene (Acetal), Delrin®
Material Info
About
CNC-machined POM-C (Polyoxymethylene) is a high-performance engineering thermoplastic known for its exceptional strength, low friction, and outstanding dimensional stability. Available in White and Black, this material is ideal for precision components used in mechanical, automotive, and industrial applications.
Color & Finishes
White
Black
Surface Roughness
Standard finish is Ra 3.2 μm, unless otherwise specified.
Technology
- CNC
Material Properties
- Tensile Strength: 60 MPa
- Tensile Modulus: 3000 MPa
- Elongation at Break: 20%
- HDT 0.45 MPa: 156 °C
Description
Material Highlights:
POM-C offers excellent mechanical strength, dimensional stability, low friction, and high wear resistance — making it ideal for high-precision, durable parts.
Chemical Resistance:
Resistant to many solvents, oils, fuels, and weak acids and alkalis, making it well-suited for demanding industrial environments.
Moisture Resistance:
Very low water absorption ensures consistent mechanical properties even in humid or wet conditions.
Applications:
Used for functional prototypes, gears, bearings, bushings, housings, jigs, and fixtures — especially where precision and wear resistance are critical.
Design Guidelines
Bounding Box
Maximum Bounding Box
3-axis: 480 x 280 x 80mm
5-axis: 480 x 180 x 80mm
Minimum Bounding Box
10 x 10 x 3 mm
Walls
Supported Walls: 1.5 mm
Unsupported Walls: 1.5 mm
Wires
Supported Wires: 1.5 mm
Unsupported Wires: 1.5 mm
Details
Embossed Details: 0.25mm
Engraved Details: 0.25mm
Clearance
Minimum: 0.2 mm
Sprues
Supported
Sprues are wires that keep two or more parts together. Parts should be connected with a minimum of two sprues each.
Multiple Parts
No
Parts in File
1
Accuracy
Where no tolerance is specified, parts are manufactured to DIN ISO 2768-mK (fine class general tolerances) as standard.
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