Delrin Machined Components
Quick Specifications
Material
Delrin (POM)
Process
CNC Machining
Tolerance
±0.05mm
Lead Time
3-5 Days
MOQ
1 Piece
Surface Finish
Polishing, Coating
Material
Delrin (POM)
Process
CNC Machining
Tolerance
±0.05mm
Lead Time
3-5 Days
MOQ
1 Piece
Surface Finish
Polishing, Coating
Delrin (Polyoxymethylene, POM), also known as acetal, is an engineering thermoplastic renowned for its exceptional dimensional stability, low friction coefficient, and outstanding mechanical properties. With high stiffness, excellent fatigue resistance, and minimal moisture absorption, Delrin maintains tight tolerances and consistent performance even in demanding environments. Its self-lubricating properties make it ideal for moving parts that require reduced friction and extended wear life.
Our advanced CNC machining capabilities enable us to produce precision Delrin components with exceptional accuracy and surface finish. Using state-of-the-art CNC milling and turning centers, we manufacture complex gears, bearings, bushings, valve components, and intricate mechanical parts that meet the most stringent requirements. Our engineering team understands Delrin's unique characteristics, including its tendency to shrink during cooling, and implements specialized machining strategies to achieve superior dimensional accuracy and surface quality.
Delrin's excellent machinability allows for tight tolerances up to ±0.05mm, making it suitable for precision mechanical applications. The material exhibits low moisture absorption (typically less than 0.25%), ensuring stable dimensions in humid environments. With excellent chemical resistance to fuels, solvents, and weak acids/bases, Delrin parts perform reliably in automotive, industrial, and consumer applications. From rapid prototypes to production runs, we deliver high-quality Delrin components with fast turnaround and no minimum order quantity.
| Material | Delrin (POM - Polyoxymethylene) |
| Process | CNC Milling, CNC Turning, 3-Axis, 4-Axis, 5-Axis Machining |
| Tolerance | ±0.05mm standard, tighter tolerances available on request |
| Surface Finish | Polishing, Coating |
| Friction Coefficient | 0.2-0.35 (self-lubricating) |
| Moisture Absorption | <0.25% (excellent dimensional stability) |
| Size Range | Up to 500mm x 500mm x 500mm |
| Lead Time | 3-5 days for prototypes, 7-14 days for production |
| MOQ | 1 piece (no minimum order quantity) |
| Certifications | ISO 9001:2015, ISO 14001:2015 |
Precision gears, gear racks, sprockets, and transmission components requiring low friction and wear resistance
Self-lubricating bearings, bushings, washers, and wear strips for rotating and sliding applications
Fuel system components, door handles, seat belt components, and interior trim parts
Conveyor components, rollers, pulleys, guides, and machine parts requiring dimensional stability
Valve seats, seals, valve bodies, and flow control components for fluid handling systems
Insulators, structural components, connectors, and precision parts for electronic devices
CNC Machines
Precision Tolerance
Days Delivery
Friction Coefficient
ISO 9001:2015
ISO 14001:2015
RoHS Compliant
Delrin is a brand name for acetal homopolymer (POM) made by DuPont, while acetal generally refers to polyoxymethylene materials. Delrin homopolymer offers slightly higher mechanical strength, stiffness, and thermal properties compared to acetal copolymer, but has slightly lower chemical resistance. Both materials exhibit similar low friction and excellent dimensional stability.
Yes, Delrin has excellent strength-to-weight ratio and can handle moderate to high loads. Its high stiffness and fatigue resistance make it suitable for gears, bearings, and structural components. However, for extremely high-load applications, we recommend consulting with our engineering team to select the optimal grade and design.
Delrin has self-lubricating properties with a low friction coefficient of 0.2-0.35, making it suitable for dry-running applications. However, additional lubrication can further reduce wear and extend service life in high-speed or high-load applications. We can advise on lubrication requirements based on your specific application.
Our standard tolerance for Delrin parts is ±0.05mm, tighter than many other plastics due to Delrin's excellent dimensional stability. For critical dimensions, we can achieve tolerances up to ±0.01mm depending on part geometry and requirements. Delrin's low moisture absorption helps maintain these tolerances in various environmental conditions.
Delrin has excellent chemical resistance to hydrocarbons, fuels, solvents, and weak acids and bases. It performs well in automotive fuel systems and industrial chemical environments. However, it should not be used with strong acids, strong bases, or oxidizing agents. Contact us for specific chemical compatibility information for your application.
Yes, certain grades of Delrin are FDA-compliant for food contact applications. Food-grade Delrin is suitable for cutting boards, food processing equipment, and kitchen utensils. Please specify your food contact requirements when requesting a quote, and we will ensure the appropriate material grade is used.
High wear resistance engineering plastic for mechanical components
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