Delrin Machined Parts


Delrin, also known as polyoxymethylene (POM), is a high-performance engineering thermoplastic that has become a core material in various manufacturing applications. Known for its excellent mechanical properties, dimensional stability, ease of machining, and rigidity to −40 °C. Delrin is a preferred choice for creating precision machined parts. Polyoxymethylene has a density of 1.410- 1.420 g/cm 3 . In this, we will tell you more about Delrin machined parts, their advantages, applications, and the technological advancements that make them essential in modern industry.

Key Advantages of Delrin Machined Parts

High Performance

Delrin offers high tensile strength, stiffness, and impact resistance, making it suitable for components that withstand mechanical stress and strain.

Dimensional Stability

Delrin maintains its shape and size over a wide range of temperatures and humidity levels, ensuring consistent performance in various environmental conditions.

Low Friction and Wear

Delrin’s low coefficient of friction and high wear resistance make it ideal for applications involving sliding and rotating parts, reducing the need for lubrication and maintenance.

Chemical Resistance

Delrin is resistant to many solvents, oils, and chemicals, which enhances its durability and longevity in chemically aggressive environments.

Ease of Machining

Delrin is easily machinable using standard machining techniques, creating complex and precise parts with tight tolerances.


While offering high performance, Delrin remains cost-effective compared to many other engineering plastics and metals, making it a reasonable choice for many applications.

Applications of Delrin Machined Parts

Automotive Industry: In the automotive sector, Delrin machined parts are used in fuel systems, safety systems, and various under-the-hood components. Their durability and precision contribute to vehicle performance and safety.
Medical Devices: Delrin is used to manufacture parts for medical devices and diagnostic equipment due to its biocompatibility, dimensional stability, and ease of sterilization.
Industrial Machinery: In industrial applications, Delrin parts such as gears, bearings, and conveyor rollers are valued for their wear resistance and ability to maintain performance under heavy loads and high speeds.
Consumer Electronics: The electronics industry uses Delrin for components like connectors, switches, and housing parts because of its electrical insulating properties and mechanical robustness.
Aerospace: Delrin’s stability, strength, and lightweight properties make it suitable for various aerospace components, contributing to fuel efficiency and performance in aircraft systems.
Consumer Goods: Delrin is also used in consumer goods because of its high-precision and durable parts ranging from kitchen appliances to sporting goods, where reliability and performance are essential.

Why you should choose Delrin for your Machine

Tight Tolerances

Delrin’s machinability allows for achieving tight tolerances, which is crucial in applications where precise dimensions and alignment are required for proper functionality.

Complex Geometries

The ability to machine Delrin into complex shapes and intricate designs enables manufacturers to create sophisticated parts that meet specific application needs.

Surface Finish

Delrin can achieve high-quality surface finishes, which is important for parts that interact closely with other components or require an aesthetic-looking appearance.


CNC (Computer Numerical Control) machining ensures consistency and repeatability in the production of Delrin parts, maintaining high standards of quality across large production runs.

Tips for Delrin Machining

Keep it cool: Delrin is sensitive to heat. When machining Delrin you can use coolant to prevent it from warping or melting. Remember air-cooled tools are preferable to liquid coolants, as liquid coolants can cause Delrin to absorb moisture.
Use Sharp tools: When machining Delrin, it’s important to use sharp cutting tools with a high clearance angle. This will help to reduce heat generation and chip formation.
Feed rate: Use a slow feed rate and high cutting speed when machining Delrin. This will help to produce a clean finish and prevent the material from overheating.
Avoid tight tolerances: Delrin can be slightly elastic, so it’s important to avoid tight tolerances when machining this material.
Separate your tools: If you’re using the same tools to machine Delrin and other materials, such as aluminum, it’s important to clean the tools thoroughly between each use. Aluminum can transfer to Delrin and cause it to become discolored or pitted.

Technological Advancements in Delrin Machining

Advanced CNC Machining

The use of state-of-the-art CNC machines has enhanced the precision and efficiency of machining Delrin. Multi-axis machining capabilities allow for the production of highly complex parts with minimal manual intervention.

CAD/CAM Integration

The integration of Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) systems streamline the design-to-production process, ensuring accuracy and reducing lead times.

Tooling Innovations

Advances in cutting tools and machining techniques have improved the quality and speed of Delrin machining. Specialized tools designed for plastics minimize heat generation and prevent material deformation.


Automated machining processes, including the use of robotics, enhance production efficiency and consistency, allowing for high-volume manufacturing without compromising quality.

Hybrid Manufacturing

Combining traditional machining with additive manufacturing (3D printing) allows for rapid prototyping and the creation of parts with complex internal structures that would be challenging to machine alone.

Delrin machined parts offer a unique combination of durability, precision, and aesthetic appeal, making them an excellent choice for a wide range of applications. By incorporating Delrin components into your products, you can ensure high performance and reliability, which will enhance customer satisfaction and build trust in your brand. The superior quality of Delrin parts will also reduce maintenance costs and downtime, leading to greater efficiency and productivity. Ultimately, leveraging the benefits of Delrin machined parts will help your business grow by delivering exceptional products that stand out in the market.

Engineering and Machining Plastic Tube

Acetal Tube

A high mechanical strength, wear resistance, and impact resistance engineering plastic grade. Due to its hardness, it is simple to mill into customised components. -50°C to +100°C in the temperature range.

Nylon 6 Tube

Another durable, machine-grade plastic with a variety of grades and colours is available. a preferred option for many industries because of its toughness, strength, and machinability. -40°C to +110°C in the temperature range.


For applications requiring both high temperature and chemical resistance, PTFE tubing is the best choice. It is suitable for food contact and has great non-stick qualities. -200°C to +260°C in the temperature range.

Polycarbonate Tube

High impact strength, great optical clarity, and resistance to a variety of liquid media are all characteristics of polycarbonate. Welding and bonding into manufactured products is simple. range of temperatures up to +115°C.

Acrylic (Perspex®) Tube

Comparable to polycarbonate but lacking its superior impact strength. Acrylic is a common material for indoor and external display applications because of its outstanding optical clarity and UV resistance. range of temperatures up to +70°C.


Excellent chemical, hydrolysis, radiation, and temperature resistance in a high-performance plastic. FDA-approved for use in applications involving food. -60°C to +250°C in the temperature range.

PET (Ertalyte®) Tube

PET is a versatile material with good wear resistance, mechanical strength, and machinability. It is also dimensionally stable. Applications involving food contact are also appropriate. temperature range of -20 to 100 degrees Celsius.

Vespel® SP-1 Tube

Vespel® SP-1 tube, which is made from unfilled polyimide resins, has unmatched temperature resistance, physical strength, and electrical insulating qualities. range of temperatures up to +288°C.

Flexible Plastic Tubing (Coils)

6701 – Clear Unreinforced PVC

Clear plastic tubing is what we often stock. utilised frequently for applications involving low pressure solids, liquids, and gases. For applications requiring food contact, PVC tubing has been approved. temperature range of -15 to +60 degrees Celsius.

6710 – Nylon

Nylon-based 6710 is flexible, lightweight, has good mechanical strength, and can be supplied in both metric and imperial sizes. It is produced in a variety of colours. -40°C to +80°C in the temperature range.

6711 – Polyurethane

An elastic thermoplastic polyurethane with a hardness of 55°D. Similar to nylon, polyurethane tubing comes in a variety of colours and has a high level of wear and abrasion resistance. temperature range of -50 to +55 degrees Celsius.

6712 – PTFE

A flexible PTFE tube with good resistance to ozone, chemicals, and high temperatures. 6712 also has outstanding non-stock qualities like other PTFE materials. range of temperatures from -70°C to +265°C.

6713 – LDPE

Low density polyethylene is used to create the 6713, a low pressure, food-approved pneumatic tube. Excellent resistance to chemicals, water, and organic salt solutions. temperature range of -20 to +50 degrees Celsius.

6719 – MDPE

An acceptable medium density polyethylene for food. It has the same chemical and organic salt resistance as LDPE. A higher operating pressure than in 6713 is provided by the increased density. temperature range of -20 to +50 degrees Celsius.

6720 – HDPE

High density polyethylene (HDPE), a flexible material, is frequently utilised in low pressure pneumatic air and water conveyance applications. Its working pressure is greater than that of 6713 and 6719. temperature range of -20 to +50 degrees Celsius.

6723 – PFA

It is comparable to PTFE in that it has unrivalled non-stick qualities, exceptional chemical resistance, and strength at high temperatures. FDA-approved for use with food. 260°C temperature range, from -260 to +260.

6724 – Nylon Tubing (Food Quality)

Manufactured from FDA-approved nylon 12, which outperforms nylon 6710 in terms of chemical resistance, optical clarity, and mechanical qualities. -40°C to +110°C in the temperature range.