POM

POM (polyoxymethylene) molding — also known as acetal or polyacetal — is a widely used technology for producing plastic components with high precision and strength. POM is an engineering polymer characterized by excellent mechanical properties, outstanding dimensional stability and a low friction coefficient, making it particularly suitable for replacing metal parts in numerous industrial applications.

Thanks to its versatility, it is used in sectors such as automotive, electronics, precision mechanics, water treatment, automation and orthopedic device manufacturing. With its extensive experience in injection molding and the use of advanced machinery, Expyou produces POM components that are durable, high-performing and customized to every design requirement.

Characteristics of POM in injection molding

POM stands out for its unique combination of rigidity, wear resistance and low friction, making it ideal for moving parts such as gears, bearings, valves and connectors.
It is available in two main types:

• Homopolymer POM, offering superior mechanical strength and tensile resistance
• Copolymer POM, providing better thermal and chemical stability with lower deformation tendency

Both types offer:

• High mechanical strength and rigidity
• Excellent fatigue resistance under dynamic loads
• Low moisture absorption for consistent dimensional stability
• Excellent resistance to chemicals, oils and solvents
• Good processability and fine surface finishing

How does POM molding work?

POM molding involves a specialized injection process optimized to preserve the material’s properties. POM granules are dried, melted and injected into a high-precision mold. After cooling, the part is ejected and may be finished or assembled depending on its intended use.

Because the material is sensitive to thermal degradation, constant monitoring of process parameters is essential. Expyou uses technologically advanced presses and computer-controlled systems to ensure consistent quality and repeatability in every production cycle.

Key advantages

POM molding offers numerous technical and functional benefits for advanced industrial applications:

• High dimensional precision, ideal for complex components and mechanical fittings
• Excellent smoothness and low friction, perfect for moving parts
• Wear and deformation resistance, even under mechanical or thermal stress
• Electrical insulation, suitable for electronic devices
• Metal alternative, reducing both weight and machining costs
• Good chemical resistance, making it suitable for harsh industrial environments

Why choose Expyou for POM molding

Expyou is the ideal partner for producing POM components, thanks to its extensive experience, precise machinery and the high quality of the materials used. Working with Expyou means benefiting from:

• High-precision machinery, perfect for processing engineering polymers such as POM
• Accurate quality control at every stage of the production process
• Custom technical design, even for complex applications
• Comprehensive support, from prototyping to mass production

If you are looking for a reliable partner for POM molding, Expyou offers tailor-made solutions, high performance and long-lasting results for every type of technical plastic component.