POM CNC Machining

POM CNC Machining

Offering top-of-the-line POM CNC Machining services with fast turnaround times.

Whether you need quick-turn prototypes or high-volume POM machined parts, we've got you covered. ISO 9001:2015, ISO 13485, and AS9100D certified.

POM CNC Machining

Polyoxymethylene (POM) is a high-performance engineering thermoplastic that belongs to the family of polyacetals or polyformals. It is commonly known by the brand names Delrin and Acetalis, among others. POM has high strength, good chemical and abrasion resistance, making it well-suited for various industrial applications.

POM is commonly utilized in the manufacturing of precision parts, gears, bearings, bushings, electrical components, automotive parts, consumer goods, and more. Its suitability for CNC machining makes it a popular choice for producing intricate and accurate components in various industries. Dadesin offers Delrin machining services for global customers for over 15 years and has adequate experience in POM milling, drilling, and turning.

Why Choose Dadesin for POM CNC Machining Services

Strict Quality Management

Our inspection instruments include German Zeiss CMM, Wanhao image measuring instrument, Hitachi handheld spectrometer, Mitutoyo roughness measuring instrument, etc.

Our Certification

Dadesin was full certificated by ISO9001:2015, IATF16949:2016.

fast Delivery

Dadesin has 200+ sets of high precision CNC machining and CNC milling centers and we can take your project from engineering design to delivery faster than our competitors.

Quality Assurance

Full inspection service for all projects.

POM Material Properties

Some grades of POM are approved by the U.S. Food and Drug Administration (FDA) for certain food-contact applications. Here are key material properties of polycarbonate:

Acetal Copolymer (POM-C)
Acetal Homopolymer (POM-H)

Acetal Copolymer (POM-C) Properties

Acetal Copolymer, often referred to as POM-C (Polyoxymethylene Copolymer), is a specific type of acetal resin that belongs to the family of polyoxymethylene polymers. POM-C is commonly known by the trade names Delrin.

Tensile Strength, Yield (MPa) Elongation at Break (%) Hardness Maximum service temperature Thermal expansion coefficent
60 - 70 30 - 32 88 HRM 82 - 90 °C 90 - 97 10^-6/ºC

Acetal Homopolymer (POM-H)

Delrin (POM-H) is the easiest to machine engineering plastic. Ideal for parts with high stiffness, low friction and very low water absorption.

Tensile Strength, Yield (MPa) Elongation at Break (%) Hardness Maximum service temperature Thermal expansion coefficent
60 - 89.6 15 - 75 14.6 - 24.8 HRM 76.9 - 96.9 °C 75.7 - 202 10^-6/ºC

POM At a Glance

Application High-precision mechanical parts such as bushings, gears, valves, and bearings components.
Advantages High tensile & impact strength, good fatigue and moisture resistance, low friction.
Weaknesses Greater geometry restrictions than 3D printing
Lead Time Typically, it takes a minimum of 3 days to produce POM parts, and this duration may extend for complex or internationally sourced components.
Price $$$$$
Tolerances It is determined by the desired effect and the POM type used. A tolerance of ±0.010” (±0.25 mm) is available at Dadesin.
Wall Thickness The minimum wall thickness for POM parts is approximately 0.80 mm (about 0.03 inches). This value might vary based on the ratio of wall thickness to planar dimension.
Max part size 200 x 80 x 100 cm(the available size is mostly decided by the machine and part geometry).

Custom POM Parts

Communication equipment housing

Communication equipment housing

Aluminum housing

Aluminum housing

CNC aluminum housing

CNC aluminum housing

Vehicle part

Vehicle part

Aluminum alloy motor housing cover

Aluminum alloy motor housing cover


Applications Of POM Parts

Polyoxymethylene (POM) parts, commonly known as Delrin or Acetal, find widespread applications across various industries due to their desirable properties. Some common applications of POM parts include:

Electrical and Electronic Parts: POM is electrically insulating. Hence, it can be used to produce switches and connectors for protecting electronic parts.

Medical Devices: Polyoxymethylene (POM) is used in the medical device industry to make surgical tools, medication systems for administration, and other medical equipment due to its biocompatibility properties.

Automotive Components: POM's low friction coefficient, high strength, and wear resistance make it suitable for use in gears, bearings, and other automotive components.

Request a Free CNC Machining Quote Now

Our in-house equipment includes 5-axis mills with edge finding equipment, ZEISS CMMs, Olympus XRF analyzers, and a range of cutting tools for efficient chip removal. We can guarantee the nylon material will be the exact material that you need for your project and can ensure the right tolerances according to your needs. Take our services out for a test drive: send us your CAD files to see our fair pricing rate and fast speeds for yourself.

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CNC Machining

POM CNC Machining FAQs

  • What is POM, and why is it suitable for CNC machining?

    POM (Polyoxymethylene) is an engineering thermoplastic known for its high strength and excellent machinability. It is suitable for CNC machining due to its ability to produce precise and intricate components with ease.

  • What are the primary advantages of using POM in CNC machining?

    Key advantages include high strength, excellent machinability, low friction, good dimensional stability, and resistance to wear and abrasion.

  • What CNC machining processes are commonly used for POM?

    Common CNC machining processes for POM include milling, turning, and drilling. These processes allow for the production of a wide range of components with different shapes and complexities.

  • Can POM be used for producing high-tolerance parts?

    Yes, POM's excellent machinability makes it well-suited for producing high-tolerance parts with tight dimensional specifications using CNC machining.

  • Are there specific considerations for tooling when machining POM?

    It's recommended to use sharp tools and proper tool geometry when machining POM to achieve the best results. High-speed steel (HSS) or carbide tools are commonly used.

  • What are the challenges of CNC machining POM?

    While POM is generally easy to machine, it can generate heat during machining, and chip control is important. Proper cooling and chip evacuation are essential to prevent issues like melting and tool wear.


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