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Delrin, the ultra-durable engineering plastic
About Delrin
Delrin, also known as POM (polyoxymethylene), is a technical plastic highly valued for its high rigidity, wear resistance, and excellent friction coefficient. Designed to offer superior mechanical properties, it is often compared to metals due to its robustness and durability. Delrin is particularly favored in the manufacturing, aerospace, and automotive industries for designing precise and resilient parts.
Need custom Delrin machining?
At 3D Coupe, we are experts in machining Delrin for high-precision parts tailored to your manufacturing needs. Benefit from our expertise for durable and high-performance solutions.
Delrin Characteristics
Mechanical Performance
- High wear resistance: Delrin offers excellent abrasion resistance, extending the lifespan of parts under heavy stress.
- High rigidity and strength: it maintains a stable structure under high mechanical loads, making it ideal for industrial applications.
- Low friction coefficient: its self-lubricating properties reduce wear and improve the efficiency of moving mechanisms.
Thermal Performance
- Good heat resistance: it can withstand temperatures of up to 90 to 100°C under continuous use.
- Dimensional stability: even with thermal variations, Delrin maintains its dimensions and properties.
Chemical Performance
- Resistant to many solvents and hydrocarbons: it offers good tolerance to various industrial chemicals.
- Low water absorption: it maintains its structural integrity even in humid environments.
Practicality
- Easy to machine: its machinability makes it an ideal material for precision custom parts.
- Good price-performance ratio: less expensive than some metals, it offers excellent performance for a reasonable investment.
Use of Delrin
Delrin is widely used in the manufacturing of mechanical components such as bearings, gears, bushings, cams, and rollers. Its low friction coefficient and high wear resistance make it a preferred material in transmission systems and moving mechanisms. It is also popular in the automotive, aerospace, and electronics sectors for precise and durable applications.
Popular Comparisons
What is the difference between Delrin and Nylon?
Delrin is stiffer and offers better wear and heat resistance than Nylon. Nylon, on the other hand, is more flexible and absorbs more moisture, which can affect its dimensions.
Delrin vs Stainless Steel: Which is the Better Choice?
Stainless steel is sturdier and supports higher mechanical loads, but it is heavier and more expensive to machine. Delrin, on the other hand, is lighter, does not rust, and is easier to work with, making it an excellent choice for reducing the weight of parts without compromising performance.
Is Delrin Suitable for Food Environments?
Yes, some variants of Delrin comply with FDA standards and can be used in the food industry. It is important to verify the material certification according to the intended application.
Is Delrin Recyclable?
Yes, Delrin can be recycled, but its recycling is less common than that of PET or HDPE. It is often recovered and reused in certain industries.
How to Maintain Delrin Parts?
Delrin does not require special maintenance. A simple cleaning with mild solvents or soapy water is sufficient. It is recommended to avoid overly harsh chemicals that could compromise its properties.
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