Services
Polyoxymethylene/Acetal CNC Machining
High-Precision Plastic Parts Manufacturing
Why US
Choose our POM CNC Machining Services
We offer stable and reliable POM (polyoxymethylene/acetal) CNC machining services suitable for manufacturing plastic parts with high requirements for mechanical properties, dimensional accuracy, and repeatability. Through CNC machining, POM material is processed into highly consistent custom plastic parts, covering the entire process from prototype verification to mass production.
Leveraging our mature CNC machining equipment and extensive experience in plastic parts processing, we can use three-axis and five-axis CNC milling to machine POM materials, meeting complex structures and high-precision requirements. While ensuring machining quality, the shortest delivery time can be as low as 3 working days, suitable for fast-paced product development and production projects.
POM CNC machining is particularly suitable for applications requiring high strength, low friction, and dimensional stability, and is a mature and mass-producible material choice for engineering plastic parts.
Advantages of POM in CNC Machining
POM (polyoxymethylene/acetal) is a well-balanced engineering plastic with good machinability and stable mechanical properties in CNC machining, and is widely used in the manufacture of structural and functional plastic parts.
Excellent mechanical properties and dimensional stability
POM possesses high rigidity and strength, maintaining excellent dimensional stability under stress and long-term use. CNC machining allows for the stable production of highly consistent POM parts, suitable for precision assembly requirements.
Suitable for high-precision CNC machining
POM exhibits stable cutting performance during CNC machining, achieving good surface quality and dimensional accuracy, making it suitable for machining plastic parts requiring strict tolerance control.
Under reasonable design conditions, the minimum wall thickness can be as low as 0.75 mm, meeting the requirements of precision structural components.
Suitable for prototype and mass production of plastic parts
POM CNC machining is suitable for both functional verification in the prototyping stage and small-to-medium batch production. Combining three-axis and five-axis CNC milling, it can efficiently manufacture plastic parts with complex geometries, ensuring repeatability and delivery stability.
Processable POM material types
We can select the appropriate POM (polyoxymethylene/acetal) material for CNC machining based on the part’s structure, usage environment, and functional requirements. Different types of POM differ in mechanical properties, dimensional stability, and application scenarios, and can be used to meet various engineering plastic parts manufacturing needs.
Acetal copolymer (POM-C)
POM-C is one of the most widely used polyoxymethylene materials in CNC machining. It has stable overall performance, good dimensional control capabilities, and is suitable for machining most structural plastic parts.
Polyoxymethylene copolymer
POM-C FDA-grade materials maintain good mechanical properties while meeting the material compliance requirements of specific applications. They are suitable for manufacturing plastic parts where material safety is a clearly defined requirement.
acetal homopolymer (POM-H)
Compared to copolymers, POM-H exhibits higher rigidity and strength, making it suitable for applications with higher mechanical performance requirements. Under appropriate structural design and processing conditions, it can be used for CNC machining of load-bearing or wear-resistant plastic parts.
Polyoxymethylene copolymer
POM-C ESD material is suitable for applications requiring static electricity control, as it maintains the good mechanical properties of POM while possessing stable antistatic characteristics.
POM CNC machining capabilities and dimensional accuracy
Based on the properties of POM (polyoxymethylene/acetal) material, we have established a stable and reproducible POM CNC machining process for producing plastic parts with good mechanical properties, dimensional accuracy, and repeatability. This machining system is suitable for different needs, from prototype verification to mass production.
CNC machining method
We use three-axis and five-axis CNC milling to precision machine POM materials to adapt to part structure designs of varying complexity.
- Three-axis CNC machining
Suitable for planar structures, standard geometries, and most functional POM plastic parts, it can achieve good processing efficiency while ensuring accuracy.
- Five-axis CNC machining
Suitable for multi-faceted machining and complex curved surface structures, it can reduce the number of clamping operations and improve the overall machining accuracy. It is often used for custom POM parts with complex structures or high precision requirements.
Machining Dimensions and Precision Capabilities
In the CNC machining of POM plastic parts, we have a clear and actionable range of capabilities:
- Machining tolerance: ±0.125 mm
- Minimum wall thickness: 0.75 mm
- Maximum part size: 200 × 80 × 100 cm
These capabilities can meet the dimensional and precision requirements of most engineering plastic parts and are suitable for the production of functional structural components, assemblies, and custom plastic parts.
POM processing flow and delivery cycle
With our own CNC machining equipment and mature processes, we are able to shorten delivery cycles while ensuring quality:
- Supports POM prototyping and small-batch production
- Minimum delivery time: 3 business days
- The manufacturing process is controllable, making it suitable for manufacturing plastic parts that require stable and repeatable performance.
This processing and delivery model is particularly suitable for POM CNC machining projects in the product development stage or with specific delivery time requirements.
Typical application scenarios of POM machined parts
Polyoxymethylene (POM) is widely used in engineering plastic parts requiring precision and reliability due to its excellent mechanical properties, low friction characteristics, and dimensional stability. Through CNC machining, POM can be reliably processed into customized parts suitable for various functional applications.
Transmission and motion plastic parts
POM has good wear resistance and a low coefficient of friction, making it suitable for use in plastic parts in various motion and transmission structures, such as gears, sliders, guides, and bushings.
Application features:
- Smooth operation and low friction loss
- Suitable for continuous movement or repetitive use scenarios.
- Stable dimensional consistency can be achieved through CNC machining.
Structural support and assembly parts
In structural applications requiring a certain level of strength and rigidity, POM is often used for supports, connectors, and assemblies. POM CNC machining allows for precision assembly while ensuring structural stability.
Application features:
- Stable dimensions and controllable assembly precision
- Suitable for custom structural components and functional parts.
- Suitable for both prototyping and small-batch manufacturing.
Precision functional plastic parts
For functional parts requiring high dimensional accuracy and repeatability, POM is a mature and reliable material choice. CNC machining allows for the stable production of precision POM parts with complex geometries.
Application features:
- Suitable for precision CNC machining
- Good surface quality and dimensional consistency
- Meets functional and assembly requirements
Electronic and antistatic application parts
In applications requiring static electricity control, POM-C ESD material is commonly used to manufacture functional plastic parts. CNC machining allows for the achievement of complex structures and precision requirements while maintaining anti-static properties.
Application features:
- Suitable for electronic-related equipment
- Stable structure and consistent performance
- Can be used for the manufacture of custom plastic parts