VoluFab

POM (Delrin)

Low-friction, self-lubricating acetal (Delrin is the DuPont homopolymer) — the default for precise wear parts such as gears and bushings.

Get an instant quote Lead time: CNC 3-5 business days; injection molding 10-15 days after tooling

Key properties

Key properties
Low coefficient of friction (self-lubricating)
Excellent wear and abrasion resistance
Tensile strength ~70 MPa
Continuous service to ~100°C (short-term 140°C)
Very low moisture absorption (stable dimensions)
Good fatigue resistance

Common applications

  • Gears and gear trains
  • Bearings and bushings
  • Precision mechanical components
  • Rollers and conveyor parts
  • Pump impellers and valves
  • Snap-fit and spring clips

Processes available

  • CNC milling
  • CNC turning
  • Injection molding

Surface finishes

  • As machined
  • Polished (enhances slip)
  • Centerless ground
  • Textured

Cost & pricing

One of the most economical engineering plastics — good value for long-wearing machined parts in Thailand.

Tolerance: ±0.05mm typical on CNC — better dimensional stability than nylon.

Frequently asked questions

Delrin or nylon for a gear?
Delrin for dry-running, dimensionally stable gears; nylon for higher toughness and heat when oil-lubricated.
Does POM absorb moisture?
Very little — that is why machined POM holds tolerance better than nylon in humid Thai weather.

Frequently asked questions

How long does production take?

Lead time depends on the process and quantity — 3D printing typically ships in 2–3 business days, CNC machining in 3–5, and injection molding in 10–15 after tooling. You'll see the exact lead time on every quote.

What is the standard tolerance?

CNC-machined parts are held to ±0.1 mm as standard, with ±0.05 mm achievable on critical features. 3D-printed parts are typically ±0.2–0.3 mm. Add your critical dimensions in the notes field.

What is the minimum order quantity?

There is no minimum order — we produce single prototype parts as easily as large production runs. Quantity discounts start from around 10–25 pieces.

What surface finishes are available?

A wide range of finishes is available locally, including as-machined/printed, bead blasting, anodizing (clear, black, gold), powder coating, painting and polishing.

How do I get a quote?

Upload your CAD file (STL, STEP, IGES or 3MF) to the instant-quote tool — the VoluFab pricing engine returns a real quote in seconds, with DFM feedback included.

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