Custom POM Injection Molding Product
If POM is the right material for your application, simply send us your drawings or samples. We'll provide a detailed quote and deliver injection molded POM parts to your exact specifications.
Custom Acetal Injection Molding Solution
Zhongren specializes in custom POM (polyoxymethylene, also known as acetal or Delrin) injection molding services for engineering components that demand high stiffness, low friction, and excellent dimensional precision. With deep expertise in polyoxymethylene injection molding, we produce tight-tolerance, high-performance plastic parts for mechanical, automotive, and industrial applications. POM injection provides an ideal balance of machinability, toughness, and chemical resistance for moving parts and load-bearing elements.
How Are POM Parts Manufactured?
We offer full-service acetal injection molding, leveraging specialized tooling and moisture control to achieve reliable, high-quality results.
- Delrin Injection Molding
- POM CNC Machining
- Insert Molding with POM
- POM Extrusion Molding
Due to its crystalline nature, POM injection molding requires precise temperature control and proper venting to avoid warping, voids, or burn marks.
Common Applications of POM Molding
Thanks to its strength, wear resistance, and low friction, POM molding is ideal for:
- Precision gears and bearings
- Sliding and rotating mechanical parts
- Automotive fuel system components
- Conveyor and handling systems
- Electrical insulators and connectors
- Consumer appliance parts and zippers
Our Valued-Added Services
- Design and Engineering Support
- Material Testing and Certification
- Surface Finishing and Printing
- Assembly and Sub-Assembly
- Custom Packaging and Labeling
Advantages of POM Injection Molding
- High mechanical strength and stiffness
- Outstanding dimensional stability
- Low coefficient of friction and excellent wear resistance
- Resistant to oils, solvents, fuels, and moisture
- FDA-compliant and medical-grade grades available
Disadvantages of POM Molding
- Limited UV resistance unless stabilized
- May experience thermal expansion under prolonged heat
- Prone to porosity if not properly degassed
- Can emit formaldehyde gas if overheated during processing
FAQ of POM Injection Molding
Why choose POM for injection molding?
POM injection offers high strength, low friction, and excellent dimensional stability, ideal for tight-tolerance moving parts in automotive, industrial, and mechanical systems.
What are the key challenges in POM injection molding?
Due to its high shrinkage and crystalline behavior, polyoxymethylene injection molding requires precise control of cooling rates, tool temperature, and moisture levels to avoid warpage and surface defects.
Is Delrin® the same as POM?
Delrin® is a trade name for acetal homopolymer (a type of POM). We support both Delrin and generic acetal injection molding grades, depending on customer requirements.
Can POM be used for insert molding?
Yes. POM injection molding supports insert molding with metal components, though shrinkage and bonding need to be carefully managed due to POM’s rigidity.
Is food-grade or medical-grade POM available?
Yes, we offer certified POM injection materials that comply with FDA and other regulatory standards for food contact, fluid handling, and medical devices.
What's the lead time for custom POM injection molding?
Standard tooling lead time is 2–4 weeks. Production starts once tooling is validated, with turnaround depending on part complexity and order volume.
