Bulk CNC-machined POM plastic component
Low-Friction Precision Components

Custom POM CNC Machining Services

POM combines rigidity, wear resistance, dimensional stability and self-lubricating performance for precision gears, bearings, shafts, sliders and structural parts.

POM Grade Families6 Common Options
Published Maximum Accuracy±0.005 mm
Maximum Machining Size3000 × 1200 × 850 mm
Request a POM Parts Quote
Material and Process Capability

Why Choose POM Material?

POM is a low-friction engineering polymer used as a metal alternative in moving and wear-resistant components. Review its published material properties and self-lubricating behavior when selecting a grade.

Precision and Rigidity

Strong dimensional stability supports accurate gears, boards, shafts and structural components.

Wear and Low Friction

Wear resistance and self-lubrication suit bearings, sliders and other moving parts.

Stable Performance

Low moisture absorption and chemical resistance help maintain consistent dimensions.

Maximum Size3000 × 1200 × 850 mm
Minimum Size10 × 10 × 10 mm
Minimum Radius0.05 mm
Maximum Accuracy±0.005 mm
Minimum Wall0.5 mm
Grade Comparison

Common POM Types and Mechanical Properties

Compare tensile strength, heat deflection and moisture behavior before selecting the grade.

POM-H

Strength
Tensile68–70 MPa
HDT110–124°C

High rigidity with 0.20–0.25% published water absorption.

POM-C

General
Tensile60–62 MPa
HDT96–110°C

Balanced general-purpose performance with 0.15–0.20% water absorption.

Wear / Rigid POM

Wear
Tensile62–65 MPa
HDT100–110°C

Designed for higher wear resistance and rigidity in moving components.

Toughened POM

Impact
Impact12–20 kJ/m²
HDT85–95°C

Higher impact performance with lower stiffness than standard POM.

Glass-Fiber POM

Rigidity
Tensile90–110 MPa
HDT130–145°C

High strength, stiffness and dimensional stability with low moisture uptake.

Conductive POM

ESD
Tensile55–65 MPa
HDT95–105°C

Antistatic or conductive behavior for sensitive electrical applications.

Machining Examples

POM CNC Machining Parts and Applications

Original project images include boards, POM connecting rods, precision housings and multi-axis components.

Three-axis CNC-machined POM board
Machined POM Board
CNC-machined POM piston connecting rod
POM Connecting Rod
Precision CNC-machined POM component
Precision POM Component
Five-axis CNC-machined POM part
5-Axis POM Part
Automotive GearsFuel-System PartsElectrical ConnectorsSliders and FixturesMedical ComponentsBearings and Bushings
Functional Surface Options

Surface Finishes for POM Parts

POM has low surface energy, so printing and coating require suitable pretreatment and should be confirmed for the application.

View the Surface Finish Guide
01

As-Machined

Maintains dimensional accuracy, low friction and minor visible tool marks for gears and sliders.

02

Polishing and Sandblasting

Polishing reduces roughness; sandblasting creates a uniform matte surface on non-sliding areas.

03

Laser Engraving

Permanent part numbers, logos and serial codes support identification and traceability.

04

Printing and Coating

Limited printing or functional coatings may be applied after special surface preparation.

One-Stop POM Machining

Why Work With Weldo for POM Parts?

Multi-axis machining, DFM review and coordinated inspection support POM components from samples through repeat production.

60+CNC and EDM Machines

Capacity for multi-axis milling and turning.

DFMEngineering Review

Feedback to improve structure, cost and efficiency.

0.001 mmInspection Resolution

Published detection accuracy using CMM systems.

1–15 DaysPublished Lead Times

Samples from 1 day; production in 3–15 days.

POM Machining FAQ

Frequently Asked Questions

The original technical guidance is condensed for faster reading.

Which problems commonly occur when CNC machining POM?

Overheating, internal-stress deformation and tool wear are common. Control temperature and cooling, use suitable tooling and avoid excessive depth of cut.

How can POM surface quality be improved?

Use stable roughing and finishing strategies, sharp tools, controlled finishing passes and compatible coolant. Parameters must match tool diameter, geometry and machine conditions.

Why does POM require compatible coolant?

POM can degrade when overheated. Use a compatible coolant that removes heat without introducing chlorine or sulfur contamination; thin walls may use controlled spray cooling.

How are burrs, wrinkles and deformation reduced?

Optimize cooling, replace worn tools, control feed and cutting load, and use compliant fixtures that avoid excessive pressure on thin sections.

How does POM compare with ABS or PA66?

POM generally offers stronger wear resistance than ABS and lower moisture absorption than PA66, supporting stable low-friction components.

Start Your POM Project

Send Your POM Part Drawing for Review

Upload the drawing, POM grade, quantity, tolerance and surface requirements. Weldo can review manufacturability before quoting.

  • STEP
  • STP
  • IGES
  • STL
  • DWG
  • DXF
  • PDF
Upload Drawing for a Quote

One project file is enough to begin the review.