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
| プロパティ | PA6 (Nylon) | POM（アセタール） |
|---|---|---|
| 引張強さ (MPa) | 70-85 | 60-70 |
| 曲げ弾性率 (GPa) | 2.5-3.0 | 2.6-2.9 |
| 破断伸度（%） | 50-150 | 25-75 |
| 密度 (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.
水分吸収
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.
耐薬品性
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
| プロパティ | PA6 | POM |
|---|---|---|
| 融点 (°C) | 220 | 165-175 |
| HDT at 1.8 MPa (°C) | 65 | 95-110 |
| Continuous Use Temp (°C) | 80-100 | 90-100 |
Application Guide
いつナイロンを選ぶか：
- 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
当社の能力
を超える。 300台のCNCマシン, を生産している。 毎日10,000個 という厳しい公差で ±0.005mm. .我々は受け入れる 1個からのMOQ, 納期は以下の通り。 24時間～15日間. We machine both nylon and POM for precision applications. 24時間以内にお見積もりいたします。.
よくあるご質問
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?
部品サイズ、材料特性、表面仕上げ、寸法公差、熱暴露、荷重方向、後処理が必要かどうかを確認する。.
How does Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics compare with CNC machining?
3Dプリンティングは複雑な形状を素早く作ることができるが、CNC機械加工は精密な表面、より厳しい公差、生産グレードの材料に強いことが多い。.
What affects the cost of Nylon vs POM (Acetal/Delrin): Choosing Between Two Engineering Plastics?
コストは、材料、造形量、印刷時間、レイヤーの高さ、サポート除去、仕上げ、検査、造形物の部品数によって異なる。.
