Delrin (Acetal, POM) Machining Services
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Delrin Machining Services
RALLY utilizes its extensive expertise and state-of-the-art equipment to provide superior Delrin machining services. We specialize in creating high quality, precision machined Delrin parts for a variety of applications. Whether you need parts for the automotive industry or specialized electronics, RALLY's expert team can deliver.
Advanced CNC technology ensures the accuracy and quality of every part produced. Not only do we offer CNC milling and CNC turning, but we also offer full fabrication and assembly services for end-to-end solutions.RALLY's commitment to quality, precision and customer satisfaction makes them the best choice for all your Delrin machining needs.

Applications for Delrin-machined parts
- Automotive Industry: Delrin is used for creating gears, bushings, fuel system components, and door and lock mechanisms due to its wear resistance and strength.
- Electronics: As an excellent insulator, Delrin is used in electrical insulator parts, connectors, and various electronic devices.
- Industrial Equipment: Delrin parts are used in manufacturing equipment, conveyors, and various machinery due to their durability and resistance to chemicals and wear.
- Consumer Products: Delrin is often used in appliances, toys, music instruments (like guitar picks), and sporting equipment for its versatility and durability.
- Medical Devices: Delrin's easy sterilizability makes it suitable for surgical tools, implant devices, and other medical equipment.
Delrin Machining Capabilities

CNC Milling
Delrin is well suited to milling operations. Sharp, carbide-tipped cutters are usually recommended for best results. Since Delrin doesn't tend to melt or deform easily under heat, high cutting speeds can be used.

CNC Turning
Delrin can be turned using a lathe, producing parts with excellent surface finishes and tight tolerances. High cutting speeds and feeds can be used due to Delrin's excellent machinability.

CNC Drilling
Delrin can be drilled with standard twist drills. Care should be taken to regularly remove chips from the drill bit to prevent clogging and overheating.

CNC Grinding
Although less common due to Delrin's soft nature, grinding can still be used for very precise shaping and finishing.
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What is the durability of Delrin parts?
Wear Resistance: Delrin exhibits excellent resistance to wear and abrasion, which makes it suitable for applications with moving parts like gears and bearings.
Impact Resistance: Delrin has high impact strength, allowing it to withstand forceful hits without deforming or breaking.
Chemical Resistance: It withstands many solvents, neutral chemicals, and hydrocarbons, contributing to its longevity in harsh environments.
Temperature Tolerance: Delrin maintains its physical properties in a wide temperature range, from -40°C to 120°C, making it suitable for diverse applications.
Dimensional Stability: Delrin parts resist warping and maintain their shape and size, even under mechanical stress or varying environmental conditions.
Frequently asked questions (FAQs) about HDPE machining
Delrin is popular for machining due to its dimensional stability, high strength-to-weight ratio, and low friction. It's also easy to machine and results in smooth, precise parts with a great finish.
Delrin is used in a wide range of applications, including gears, bushings, bearings, rollers, fittings, and electrical insulator parts. It's especially popular in industries like automotive, electronics, and consumer goods.
The cost of Delrin machining can vary based on the complexity of the design, volume of the order, and other factors. However, due to its ease of machining and excellent material properties, it can be a cost-effective solution for many applications.
Delrin is generally easier to machine than many other plastics, due to its strength, rigidity, and dimensional stability. It also tends to produce a very smooth surface finish, which can reduce or eliminate the need for post-machining finishing processes.
Yes, Delrin's dimensional stability and ease of machining make it a popular choice for high-precision parts. It holds tight tolerances and is resistant to warping or deformation.
Delrin, also known as Acetal or POM, is widely used in many industries due to its high strength, low friction, and ease of machining. Key applications include gears, bearings, bushings, and rollers in the automotive sector. It's also prevalent in electronics for insulator parts and in consumer goods for various components.
Of course, you need to pay the sample fee, and the sample fee will be deducted from the invoice after confirming the order.
Learn more about our other plastic machining
At RALLY, our expertise isn't limited to Delrin. We offer a comprehensive suite of plastic machining services, utilizing materials like Nylon, Acrylic, PEEK, and Polycarbonate. With our advanced technology and skilled technicians, we can realize your projects with precision and quality, regardless of the plastic type.

Acrylic Machining

HDPE machining

PTFE machining

ABS machining

Nylon Machining
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Machining Delrin : A Guide to Frequently Asked Questions
1. What is Delrin, Acetal, and POM?
Delrin is a brand name for Acetal homopolymer resin, which is a type of Polyoxymethylene (POM). POM is a thermoplastic material known for its high strength, stiffness, and excellent dimensional stability. It's highly resistant to solvents, moisture, and many neutral chemicals.
2. What machining processes can be used on Delrin?
Most common CNC machining processes, including milling, turning, and drilling, can be used on delrin. It's an easy-to-machine material that provides a good surface finish.
3. What kind of finish can I expect when machining Delrin?
Delrin can provide a good surface finish, especially when sharp tools are used and the machining process is properly managed. It can typically achieve a smooth, glossy finish.
4. What are the advantages of using Delrin in manufacturing?
These materials are highly valued in manufacturing for their strength, dimensional stability, low friction, and resistance to wear. They also perform well in a wide range of temperatures and have excellent electrical insulating characteristics.
5. What are some common applications of Delrin machined parts?
Delrin machined parts are commonly used in precision gears, bearings, bushings, rollers, and fittings due to its high rigidity, low friction, and dimensional stability.
6. How does Delrin compare to other plastics in terms of machinability?
Delrin is relatively easy to machine compared to other plastics. It maintains good dimensional stability, allows for tight tolerances, and does not tend to melt or deform under the heat generated by machining. This makes it a favored material for parts that require high precision.
Why Choose RALLY?
Choosing RALLY's Delrin machining services means entrusting your project to one of China's leading precision parts manufacturers.RALLY is known for its expertise in making HDPE parts, and its proven technology extends to Delrin machining. Our state-of-the-art CNC equipment ensures high-quality, precision machined Delrin parts. Not only do we offer CNC milling and turning, but we also provide full fabrication and assembly services to deliver finished parts from start to finish.
RALLY's industry experience allows them to develop optimal solutions focused on superior quality and precision. So for all your manufacturing needs, RALLY serves as a complete, reliable solution, ensuring that every project is carried out with the utmost care and accuracy.