Custom POM CNC Machining Services
Plasticpartsmfg provides precision CNC machining for Delrin (POM) components, supporting engineering teams and procurement specialists from initial prototyping to high-volume production. Located in Shenzhen, China, we specialize in delivering dimensionally accurate, high-performance plastic parts that meet strict technical requirements for industrial, automotive, and mechanical applications.
Precision POM Machining Capabilities
POM (Polyoxymethylene), or Delrin, is a preferred material for mechanical components due to its high stiffness, low friction, and excellent dimensional stability.
Our facility is equipped with 3-axis, 4-axis, and 5-axis CNC machines calibrated specifically for plastic polymers. This allows us to maintain the tight tolerances required for functional parts while ensuring consistent surface quality.
| Feature | Technical Range |
|---|---|
| Machining Processes | Milling, Turning, Drilling, Threading |
| Typical Tolerance | ±0.01 mm – ±0.05 mm |
| Max Part Size | Up to 1,000 × 600 × 500 mm |
| Quantity | 1 to 10,000+ pieces |
| Material Grades | POM-C (Copolymer), POM-H (Homopolymer), ESD-safe POM |
| Secondary Ops | Deburring, Bead Blasting, Thread Inserting, Assembly |
Why Engineers Choose POM for CNC Projects
When designing for mechanical applications, POM is often selected over other plastics for its unique physical properties. Our team assists in optimizing your CAD designs for these specific material behaviors:
Dimensional Stability
Low moisture absorption ensures parts maintain their shape and fit even in varying humidity conditions.
Low Friction
Ideal for gear systems, sliding tracks, and precision bearings where minimal continuous wear is required.
Ease of Machining
POM machines cleanly, allowing complex geometries, thin walls, and precise threads without melting or tearing.
Chemical Resistance
Highly suitable for components consistently exposed to fuels, industrial solvents, and neutral chemical agents.
From Prototype to Production
We understand that projects evolve. Whether you are validating a design with a single prototype or transitioning to small-batch production, our manufacturing workflow is designed for flexibility:
Rapid Prototyping
We accept STEP, IGES, and X_T files to provide quick-turn machining, helping you verify form, fit, and function before committing to larger production runs.
Bridge Production
If you need 50 to 500 units before injection molding tools are ready, our CNC machining provides a cost-effective path to market without the high upfront cost of tooling.
Repeatable Quality
For ongoing requirements, we utilize standardized machining programs and rigorous inspection protocols to ensure that every batch matches your initial approved sample.
Secondary Operations and Assembly
Beyond machining, we offer a full suite of services to deliver finished components ready for integration into your assemblies. This reduces your supply chain complexity by consolidating multiple manufacturing steps:
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Threaded Inserts: Installation of metal heat-set or press-fit inserts.
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Surface Finishing: Sanding and polishing to achieve specific surface roughness requirements.
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Custom Packaging: Protective wrapping and specialized boxing to ensure parts arrive in pristine condition, regardless of destination.
Quality Control and DFM Support
Every project begins with a Design for Manufacturing (DFM) review. Our engineering team examines your drawings to identify potential issues—such as wall thickness, sharp internal corners, or deep pockets—that could impact the structural integrity of your POM parts.
We perform dimensional inspections based on your provided PDF engineering drawings. If your project requires specific documentation, such as material certificates or inspection reports, please specify these requirements when requesting a quote.
Request a Quote for Your POM Parts
Ready to move forward with your project? Send your CAD files and technical requirements to our team for a fast, accurate quotation.
To receive a competitive quote, please provide:
- 3D CAD Files: (STEP, IGES, or X_T format)
- 2D Drawings: (PDF with tolerance and surface finish requirements)
- Quantity: (For both prototype and production volumes)
- Special Requirements: (Assembly, packaging, or specific material grades)
Contact us:
Manufacturing Location: