CNC Machining in Delrin (POM)
Custom CNC machined Delrin and POM parts for precision mechanical, automation, and industrial applications. POM offers low friction, good wear resistance, high stiffness, and excellent dimensional stability for functional plastic components.
What is Delrin (POM)?
Delrin, also known as POM (Polyoxymethylene) or Acetal, is a high-performance engineering thermoplastic widely used in precision CNC machining.
It offers an excellent balance of mechanical strength, low friction, and dimensional stability, making it an ideal choice for tight-tolerance components across automotive, industrial, and consumer applications.
High Strength
Excellent stiffness and toughness for structural parts.
Low Friction
Ideal for moving components and wear-resistant applications.
Dimensional Stability
Maintains tight tolerances even in varying environments.
Low Moisture Absorption
Performs reliably in humid or wet conditions.
Delrin (POM) CNC Machining Capabilities
CNC Milling
3-axis, 4-axis, and 5-axis milling for complex geometries and tight tolerances.
CNC Turning
Precision turning for shafts, bushings, bearings, and custom cylindrical parts.
Complex Geometries
Expert at undercuts, threads, slots, holes, and intricate features.
Example of CNC Milling on Delrin (POM)
Precision CNC Turning Parts in Delrin
Common Applications of CNC Machined Delrin (POM)
Delrin (POM) Material Properties
From Your Drawing to Finished Parts
A straightforward process for custom CNC parts, from project review through machining, inspection and delivery.
Send Your Files
Share your CAD files or drawings together with the main project requirements.
Review & Quote
We review manufacturability and provide pricing, lead time and production details.
Machine & Inspect
Parts are produced to the approved requirements and checked during production.
Pack & Deliver
Finished parts are securely packed and shipped to your specified destination.
How We Control Part Quality
Quality control is built into every stage of our CNC machining workflow — from drawing review and material verification to in-process inspection and final shipment checks.
Drawing Review
We check drawings, tolerances, materials, finishes, and critical features before production.
Material Inspection
Raw materials are verified to confirm specification, grade, and project requirements.
In-Process Control
Critical dimensions are monitored during machining to maintain accuracy and repeatability.
Final Inspection
Finished parts are checked for dimensions, appearance, surface finish, and packaging condition.
Up to ±0.01 mm Tolerance
Support for precision CNC parts with tight dimensional requirements and stable repeatability.
Reliable Measurement Tools
Inspection with standard measuring tools, 2D vision inspection, and CMM support when required.
ISO-Based Process Control
Structured workflow for material control, machining inspection, documentation, and final verification.
Delrin CNC Machining FAQs
Common questions about CNC machining Delrin / POM parts, including tolerances, applications, materials, and quote requirements.
Is Delrin suitable for CNC machining?
Yes. Delrin, also known as POM or acetal, is one of the most commonly machined engineering plastics. It machines cleanly, holds good dimensional accuracy, and is suitable for gears, bushings, rollers, spacers, guides, and other functional mechanical parts.
What tolerances can CNCTAL achieve for Delrin parts?
For many Delrin CNC machined parts, we can achieve tight tolerances up to ±0.01 mm depending on the part structure, wall thickness, feature size, and drawing requirements. For plastic parts, we always recommend confirming critical dimensions before production.
What are the advantages of Delrin compared with other plastics?
Delrin offers low friction, good wear resistance, high stiffness, stable dimensions, and low moisture absorption compared with many general plastics. It is often selected for moving parts or precision plastic components that need smooth operation.
Can you machine both white and black Delrin?
Yes. We can machine natural white Delrin and black Delrin depending on your application and appearance requirements. Other POM grades may also be available based on project needs.
What file formats should I send for a Delrin CNC machining quote?
Please send 3D files such as STEP or STP, together with 2D drawings in PDF format if tolerances, threads, surface finish, or inspection requirements are important. Quantity, material color, and application details will help us quote more accurately.
Do you support prototype and small batch Delrin parts?
Yes. CNCTAL supports one-off prototypes, small batch production, and repeat orders for Delrin CNC machined parts. This is useful for product testing, machine maintenance, custom equipment, and low-volume industrial components.
Need custom Delrin CNC machined parts?
Send your STEP, PDF drawing, quantity, and material requirements. Our engineering team will review your project quickly.