Nylon and POM (polyoxymethylene, also known as acetal or Delrin) are two of the most important engineering plastics. Both are widely used for precision mechanical components, but their distinctly different properties make each better suited for specific applications.
Mechanical Properties Head-to-Head
| Eigendom | PA6 (Nylon) | POM (acetaal) |
|---|---|---|
| Treksterkte (MPa) | 70-85 | 60-70 |
| Flexural Modulus (GPa) | 2.5-3.0 | 2.6-2.9 |
| Rek bij breuk (%) | 50-150 | 25-75 |
| Dichtheid (g/cm³) | 1.14 | 1.41 |
Wear and Friction: A Critical Difference
POM’s key advantage over nylon is its excellent wear resistance and low coefficient of friction (0.2-0.35 against steel), making it preferred for gears, bearings, and sliding components.
Vochtabsorptie
POM absorbs less than 0.3% water even at saturation, while nylon absorbs 2.5-9.5% depending on conditions. This means POM parts maintain consistent dimensions regardless of humidity.
Chemische weerstand
Nylon is resistant to oils, greases, fuels, and alkalis. POM offers excellent resistance to organic solvents, oils, and neutral chemicals but is attacked by strong acids.
Thermal Properties
| Eigendom | PA6 | POM |
|---|---|---|
| Melting Point (°C) | 220 | 165-175 |
| HDT at 1.8 MPa (°C) | 65 | 95-110 |
| Continuous Use Temp (°C) | 80-100 | 90-100 |
Application Guide
Choose Nylon When:
- Impact resistance and toughness are critical
- Parts experience dynamic loading
- Higher temperature resistance is needed (PA66)
Choose POM When:
- Dimensional stability in varying humidity is critical
- Low friction and wear resistance are priorities
- Parts operate in wet environments
- Precision mechanical components are needed
Onze mogelijkheden
Met meer dan 300 CNC machines, produceren we meer dan 10.000 stuks per dag met toleranties zo nauw als ±0,005mm. Wij accepteren MOQ vanaf 1 stuk, met levertijden variërend van 24 uur tot 15 dagen. We machine both nylon and POM for precision applications. Ontvang binnen 24 uur een offerte.
FAQ
When is Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics a good option?
Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics is a good option when fast iteration, complex geometry, low tooling cost, or low-volume production is more important than molded-part unit cost.
What should be checked before choosing Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics?
Controleer de onderdeelgrootte, materiaaleigenschappen, oppervlakteafwerking, maattolerantie, blootstelling aan hitte, belastingsrichting en of nabewerking nodig is.
How does Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics compare with CNC machining?
Met 3D-printen kunnen complexe vormen snel worden gemaakt, terwijl CNC-bewerking vaak sterker is voor precieze oppervlakken, nauwere toleranties en productiematerialen.
What affects the cost of Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics?
De kosten zijn afhankelijk van het materiaal, het bouwvolume, de printtijd, de laaghoogte, het verwijderen van de ondersteuning, de afwerking, de inspectie en het aantal onderdelen in de bouw.
