Derlin CNC Machined Parts
Precision CNC-machined Delrin (POM) parts engineered for strength, low friction, and exceptional dimensional stability. Support your automotive and industrial projects with expert Delrin machining and fabrication.
- High-performance engineering plastic (Delrin / POM)
- Tight tolerances achievable down to ±0.005"
- Fast lead times starting from 24 hours
- Multiple surface finishing options available
- Maximum part size up to 1200 × 500 × 150 mm
- ISO 9001:2015 certified manufacturing
What Is Derlin Material For Machining?
Delrin, also known as Polyoxymethylene (POM), is a high-performance engineering plastic widely used for CNC machining due to its excellent dimensional stability, low friction, and high mechanical strength. During machining, Delrin maintains tight tolerances and produces clean, consistent features, making it ideal for precision components in automotive, electronics, and industrial applications.
Delrin CNC machined parts offer excellent wear resistance, fatigue resistance, and reliable performance in mechanically demanding environments, especially for moving and load-bearing plastic components.
Derlin parts are also wear-resistant, fatigue-resistant, and chemically inert in most environments.
Properties of Derlin (POM)
| Property | Value | |
|---|---|---|
| Tensile Strength (Unfilled POM) | 69 - 72 MPa | |
| Elongation at Break | 15 - 25 % | |
| Hardness (Rockwell M) | M89 - M94 | |
| Tensile Modulus (Stiffness) | 2.9 - 3.2 GPa | |
| Flexural Strength | 82 - 97 MPa | |
| Density | 1.41 - 1.42 g/cm³ | |
| Melting Point (Material Reference) | 175 °C | |
| Dynamic Coefficient of Friction | 0.1 - 0.3 (dynamic) | |
| Water Absorption (24 hrs @ 23°C) | 0.2 - 0.25 % |
Types of POM Available for Machining
POM-H (Homopolymer)
Highly crystalline structure, offering higher stiffness, strength, and better machinability than copolymer grades.
Applications: Precision gears, bushings, bearings, mechanical sliders, cam components (non-structural).
POM-C (Copolymer)
Improved chemical resistance and thermal stability with slightly lower stiffness, making it more dimensionally stable in humid or chemically exposed environments.
Applications: Valve components, fluid-handling parts, housings, fittings.
POM-C FDA (Food-Grade)
FDA-compliant copolymer POM with low moisture absorption and good wear resistance.
Applications: Food-processing wear strips, guide rails, rollers, packaging machine components.
POM Reinforced (Glass / Carbon Filled)
Reinforced with glass or carbon fibers for increased stiffness and load-bearing capacity. Machining requires controlled parameters due to higher tool wear.
Applications: High-load gears, structural housings, mechanical support components.
POM ESD (Antistatic)
ESD-safe POM designed to dissipate static electricity while maintaining good machinability.
Applications: Electronic fixtures, semiconductor tooling, cleanroom components.
Delrin CNC Machining Capabilities Across Key Industries
Automotive Components
• Precision gears
• Bushings and sleeves
• Door lock mechanisms
• Control knobs and interior mechanisms
Industrial Machinery Parts
• Rollers and guide components
• Plain bearings
• Mechanical couplings
Electronics
• Connectors
• Insulators
• Electronic housings
• Precision spacers (ESD grades available)
Medical and Food-Grade Components
• Food-processing rollers
• Wear strips and guide rails
• Valve components (non-elastomeric)
• Instrument handles
• Medical device housings
Advantages of Using Machined Delrin Plastic
High Strength
High tensile strength and stiffness for lightweight, load-bearing plastic components where metal is not required.
Low Friction
Naturally low friction surface, making Delrin ideal for gears, bushings, and sliding components with minimal lubrication.
Dimensional Stability
Low moisture absorption and good thermal stability help maintain tight tolerances across a wide operating temperature range.
Chemical Resistance
Good resistance to fuels, oils, and many solvents, suitable for mechanically demanding industrial environments.
Excellent Machinability
Excellent machinability allows tight tolerances, smooth surface finishes, and consistent results in CNC machining.
Wear & Fatigue Resistance
Excellent wear resistance and fatigue performance for rollers, bushings, and repeatedly moving mechanical components.
