POM (Delrin) CNC Machining Service
Get precision Polypropylene (PP) CNC machined components designed for excellent chemical resistance, low weight, and dependable durability. Our advanced CNC machining processes deliver custom PP parts with consistent accuracy, clean surface finishes, and reliable performance for a wide range of industrial applications.
POM (Delrin) in CNC Machining
POM (Polyoxymethylene), commonly known as Delrin or Acetal, is a high-performance engineering thermoplastic valued for its high strength, stiffness, low friction, wear resistance, and excellent dimensional stability. These characteristics make it particularly suitable for precision CNC-machined components that require consistent accuracy and smooth operation.POM machines cleanly and is well suited for producing gears, bushings, bearings, rollers, electrical components, automotive parts, fixtures, and precision mechanical components. Its low moisture absorption and good mechanical properties also make it a reliable choice for demanding industrial applications.
| Available POM Grades | POM Natural, POM Black, Delrin/Acetal Grades |
| 가격 | $ |
| 리드 타임 | 10일 미만 |
| 벽 두께 | 0.75 mm |
| 허용 오차 | ±0.125 mm (±0.005 in) |
| 최대 부품 크기 | 1200 × 500 × 150 mm |
POM (Delrin) CNC Machining Materials
Machined POM Properties
POM (Delrin) is an engineering thermoplastic valued for its strength, stiffness, low friction, and excellent machinability. These properties make it suitable for precision CNC machined components that require dimensional stability and reliable wear performance.
일반 CNC 가공 공차
| 설명 | 일반 허용 오차 또는 표준 |
|---|---|
| 일반 치수 공차 | ±0.005″ (±0.127 mm) for metals; ±0.010″ (±0.254 mm) for plastics in line with ISO 2768-mK unless otherwise specified |
| 엄격한 허용 오차 | Down to ±0.001″ (±0.025 mm) available upon request, with detailed 2D drawings and GD&T specifications |
| 최소 피처 크기 | ~0.020″ (0.50 mm), depends on part geometry, tool diameter, and material |
| 구멍 직경 공차 | ±0.002″ (±0.05 mm) typical; tighter tolerances with boring or reaming |
| 평탄도/평행도 | ≤0.002″ per 6″ (≤0.05 mm per 150 mm), varies by material and fixture setup |
| 스레드 공차 | ISO/ASME에 따른 표준 미터법 및 영국식 나사산, 요청 시 맞춤형 또는 미세 나사산 제공 |
| 각도 허용 오차 | 통상 ±0.5° |
| 에지 조건 | 별도의 언급이 없는 한 날카로운 모서리는 기본적으로 파손되고 디버링됩니다. |
| 표면 마감(표준) | Ra 3.2μm(125μin) 가공, 폴리싱, 비드 블라스팅, 아노다이징 등을 통해 향상된 마감 처리 가능. |
| 최대 부품 크기 | Milling: Up to 80″ × 48″ × 24″ (2,032 × 1,219 × 610 mm) Turning: Up to 62″ length × 32″ diameter (1,575 × 813 mm) |
Advantages and Limitations POM (Delrin) CNC Machining
POM (Delrin) offers excellent dimensional stability, low friction, and wear resistance, making it suitable for precision CNC machined parts. However, it also has some limitations to consider during material selection.
- High Dimensional Stability:
POM maintains accurate dimensions and performs consistently under changing operating conditions, making it suitable for precision components. - Low Friction:
Its low friction coefficient makes POM ideal for gears, bearings, bushings, and other moving parts that require smooth operation. - Excellent Wear Resistance:
POM withstands repeated movement and friction, helping extend the service life of components used in demanding applications. - Good Chemical Resistance:
POM resists many solvents, oils, and fuels, making it suitable for automotive and industrial environments. - Excellent Machinability:
POM cuts cleanly and allows manufacturers to produce precise, complex components with smooth surface finishes.
- Susceptibility to Cracking:
POM can crack under excessive stress or impact, particularly when used in demanding mechanical applications. - Higher Material Cost:
POM can cost more than some other engineering plastics, which may affect material selection for budget-sensitive projects. - Tool Wear:
Some POM grades can contribute to tool wear during machining, requiring appropriate tooling and machining parameters.
엘리트 몰드 기술로 디자인에 생명력 불어넣기
엘리트 몰드 테크의 정밀 CNC 가공을 경험해 보세요. 복잡한 프로토타입부터 대규모 생산까지, 당사는 고객의 아이디어를 현실화할 준비가 되어 있습니다. 지금 바로 문의하여 프로젝트에 필요한 사항을 논의하세요!
- 광범위하게 공유되는 전문성
- 시장 도달 범위 확대
- 고급 기술 통합
- 협업 혁신 기회
- 신뢰할 수 있는 온디맨드 솔루션
- 모든 업로드는 안전하고 기밀이 유지됩니다.
POM Delrin CNC Machining FAQs
Are POM and Acetal the same material?
POM is a type of acetal thermoplastic known for its strength, stiffness, low friction, and excellent machinability. Acetal is the broader material family, while POM is the chemical name commonly used for acetal plastics.
Is POM the same material as Delrin?
What are the recommended cutting speeds for brass?
The appropriate cutting speed depends on the brass grade, tool material, machining operation, and machine setup. Start with the cutting tool manufacturer’s recommendations and adjust for surface finish, chip control, and tool life.
Are Acetal and Delrin interchangeable terms?
They are related but not exactly interchangeable. Acetal refers to a broader category of engineering plastics, while Delrin is a specific branded acetal material. The exact properties can vary by grade and manufacturer.
Is POM susceptible to cracking?
POM can crack under excessive stress, impact, or unsuitable operating conditions. Proper part design, machining parameters, and material selection can help reduce the risk of cracking.