Custom CNC Machining Acetal/Delrin/POM Parts
Precision CNC machining services for Acetal (POM), Delrin, and polyoxymethylene plastic parts. ISO-certified manufacturing with 15+ years of experience delivering high-precision engineering plastic components.
What is Acetal/Delrin/POM?
Acetal (Polyoxymethylene/POM), commonly known by the trade name Delrin, is a high-performance engineering thermoplastic renowned for its exceptional dimensional stability, low friction, and superior machinability.
Key Material Characteristics
POM/Acetal/Delrin Grades Comparison
Choose the right material grade for your specific application requirements
| Material Grade | Type | Key Properties | Applications | Cost Level |
|---|---|---|---|---|
| POM-H (Delrin 150) | Homopolymer | High strength, stiffness, creep resistance | Gears, bearings, structural components | $$ |
| POM-C (Copolymer) | Copolymer | Better chemical resistance, easier machining | Chemical containers, automotive parts | $ |
| POM-C FDA | FDA Approved | Food-safe, excellent purity | Food processing, medical devices | $$$ |
| POM-C ESD | Antistatic | Static dissipative, electronic-safe | Electronics, cleanroom applications | $$$$ |
| Delrin 570 (20% GF) | Glass Filled | Enhanced strength, stiffness, temperature resistance | High-stress mechanical parts | $$$ |
| POM Conductive | Conductive | Electrical conductivity, EMI shielding | Electronic housings, EMI applications | $$$$ |
Technical Properties
Comprehensive material properties for engineering applications
Mechanical Properties
Thermal & Other Properties
Applications & Industries
Acetal/Delrin/POM parts serve critical functions across diverse industries
Automotive Industry
- • Fuel system components
- • Door handles and mechanisms
- • Window regulator parts
- • Seat adjustment components
Electronics
- • Connector housings
- • Switch components
- • Cable management parts
- • Precision mechanical parts
Medical Devices
- • Surgical instruments
- • Drug delivery components
- • Diagnostic equipment parts
- • Prosthetic components
Industrial Machinery
- • Gears and sprockets
- • Bearings and bushings
- • Conveyor components
- • Pump impellers
Consumer Products
- • Kitchen appliance parts
- • Toy components
- • Sporting goods
- • Hardware fasteners
Aerospace
- • Interior components
- • Non-structural parts
- • Insulation components
- • Control system parts
Surface Finishing Options
Professional surface treatments to enhance functionality and appearance
As-Machined
Natural surface finish with tool marks visible. Ra 1.6-3.2 μm typical.
Bead Blasting
Uniform matte finish, excellent for reducing surface reflectivity.
Polishing
Mirror-like finish, Ra 0.1-0.4 μm for optical applications.
Chemical Etching
Controlled surface texturing for improved adhesion properties.
Laser Engraving
Permanent marking for identification, logos, and part numbering.
Vapor Smoothing
Chemical vapor treatment for ultra-smooth surface finish.
Advantages & Considerations
Advantages of CNC Machining Acetal/Delrin/POM
- Exceptional machinability with clean cuts and smooth finishes
- Superior dimensional stability and tight tolerance capability
- Low coefficient of friction for moving parts
- Excellent chemical resistance to fuels and solvents
- High strength-to-weight ratio for lightweight applications
Design Considerations
- Limited UV resistance – protect from prolonged sun exposure
- Thermal expansion considerations for precision assemblies
- Moderate temperature range compared to high-temp plastics
CNC Machining Capabilities
Advanced manufacturing processes for precision Acetal/Delrin/POM parts
CNC Milling
3, 4, and 5-axis milling for complex geometries and tight tolerances
CNC Turning
Precision turning for cylindrical parts, shafts, and rotational components
Swiss Machining
High-precision small parts manufacturing with superior surface finish
Wire EDM
Precise cutting for complex shapes and intricate internal features
Why Choose Rapidaccu for Acetal/Delrin/POM Machining?
15+ years of precision plastic machining expertise
15+ Years Manufacturing Experience
Extensive expertise in CNC machining engineering plastics with proven track record
ISO Quality Certification
ISO-certified quality management system ensuring consistent part quality
Advanced Manufacturing Equipment
State-of-the-art CNC machines and precision measuring equipment
Direct Manufacturer Advantage
Factory-direct pricing and direct communication with engineering team
Frequently Asked Questions
Common questions about CNC machining Acetal, Delrin, and POM parts
What’s the difference between Acetal, Delrin, and POM?
What tolerances can be achieved with CNC machined Acetal parts?
Is Acetal/Delrin suitable for food contact applications?
What’s the typical lead time for custom Acetal CNC machining?
Can Acetal parts be used in automotive applications?
What surface finishes are available for CNC machined Acetal parts?
Get Your Custom Acetal/Delrin/POM Parts Quote
Ready to start your precision CNC machining project? Contact our expert team for a detailed quote and technical consultation.