Choosing between nylon, POM, polycarbonate, and PEEK can be challenging. Each of these engineering plastics offers a unique combination of properties, costs, and processing characteristics.
The Four Major Engineering Plastics at a Glance
| Eigendom | Nylon (PA6) | POM (acetaal) | PC | PEEK |
|---|---|---|---|---|
| Strength (MPa) | 70-85 | 60-70 | 55-75 | 90-100 |
| Max Use Temp (°C) | 100 | 100 | 120 | 250 |
| Chemische weerstand | Goed | Uitstekend | Poor | Outstanding |
| Vochtabsorptie | Hoog | Zeer laag | Zeer laag | Zeer laag |
| Relatieve kosten | $$ | $$$ | $$$ | $$$$$$$$$ |
Nylon: The All-Round Workhorse
Best For: General engineering applications, parts requiring toughness and fatigue resistance, oil/hydrocarbon exposure, cost-sensitive projects.
Watch Out For: Moisture absorption causing dimensional changes, property variation with humidity, acid exposure.
POM (Acetal): The Precision Specialist
Best For: Precision mechanical components (gears, bearings), dimensional stability in varying humidity, low-friction sliding components.
Watch Out For: Limited impact resistance, formaldehyde degradation if overheated, poor adhesion.
Polycarbonate: The Impact Champion
Best For: Optical clarity applications, exceptional impact resistance, electrical enclosures, safety equipment.
Watch Out For: Very poor chemical resistance, environmental stress cracking, UV degradation without stabilizers.
PEEK: The High-Performance Specialist
Best For: Extreme temperatures (up to 250°C), aggressive chemical environments, aerospace and medical implants.
Watch Out For: Extremely high cost (10-20x nylon), high processing temperatures (350-400°C), requires specialized equipment.
Decision Matrix
| If Your Priority Is… | Best Choice | Second Choice |
|---|---|---|
| Lowest Cost | Nylon | PC |
| Highest Strength | PEEK | Nylon GF30 |
| Chemische weerstand | PEEK | POM |
| Slijtvastheid | POM | Nylon |
| Schokbestendigheid | PC | Nylon |
| Dimensionale stabiliteit | POM | PEEK |
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 work with all four engineering plastics. Ontvang binnen 24 uur een offerte.
FAQ
When is Engineering Plastics Selection Guide: Nylon, POM, PC, and PEEK Applications Compared a good option?
Engineering Plastics Selection Guide: Nylon, POM, PC, and PEEK Applications Compared 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 Engineering Plastics Selection Guide: Nylon, POM, PC, and PEEK Applications Compared?
Controleer de onderdeelgrootte, materiaaleigenschappen, oppervlakteafwerking, maattolerantie, blootstelling aan hitte, belastingsrichting en of nabewerking nodig is.
How does Engineering Plastics Selection Guide: Nylon, POM, PC, and PEEK Applications Compared 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 Engineering Plastics Selection Guide: Nylon, POM, PC, and PEEK Applications Compared?
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.
