Delrin is a versatile homopolymer variant of polyoxymethylene (POM) that exhibits high strength, high hardness, a low coefficient of friction, and outstanding dimensional stability. Also known as acetal, polyacetal, and polyformaldehyde, this engineering thermoplastic is commonly used to produce products as diverse as gear wheels, ball bearings, fasteners, ski bindings, and eyeglass frames.Delrin is especially popular in the automotive and electronics industries. As the leading manufacturer of CNC machining delrin parts for over 25 years, Worthy Hardware is well equipped with 35 sets CNC Machines, including 3 sets 5 axes,4 sets 3 axes, 12 sets turning and milling compound. These machines could allow us to make prototypes,small-batch and mass production parts for Delrin materials.

What is CNC machining POM (Delrin/Acetal)?

Pom is a white or black plastic granule with high hardness, high steel and high wear resistance. Mainly used for gears, bearings, auto parts, machine tools, instrument internals and other products that play a skeleton role.People also called it to be Acetal or POM.CNC machining pom is a process that applies computer-controlled digital technology to remove the extra material and complete any necessary cutting, turning or milling. This can be done with machine tools depending on what’s needed for your specific programming before getting an end product from pom in their final form.

Mechanical Properties

(1) POM is a crystalline plastic, density of 1.42g/cm3, its steel is very good, commonly known as “race steel”.

(2) POM has fatigue resistance, creep resistance, wear resistance, heat resistance, impact resistance and other excellent performance, and the coefficient of friction is small, self-lubricating good.

(3) POM is not easy to absorb moisture, water absorption rate of 0.22 ~ 0.25%, good dimensional stability in a humid environment, its shrinkage rate of 2.1% (larger), injection molding size is difficult to control, the heat deflection temperature of 172 ℃, paraformaldehyde has two kinds of homopolymer formaldehyde, different performance (homopolymer formaldehyde temperature resistance is better).

What are the benefits of CNC Machining POM(Delrin/Acetal)?

POM(Delrin/Acetal) is a thermoplastic engineering plastic with high melting point and high crystallinity. Due to the good characteristics, it is very suitable for CNC machining on automatic lathes. Worthy Hardware is committed to the precision machining of delrin precision parts and has summarized a lot of benefits of delrin.

1) High mechanical strength and rigidity;

2) Good environmental resistance and organic solvent resistance;

3) Highest fatigue strength;

4) Strong resistance to repeated impact;

5) Good electrical properties;

6) Wide temperature range (-40℃~120℃);

7) Excellent dimensional stability;

8) It has self-lubricity and good wear resistance.

CNC Machining POM (Delrin/Acetal) Projects