Acetal / Delrin

Acetal (natural/black) is well suited for machining on automatic lathes and
is particularly recommeded for mechanical precision parts. Acetal copolymer
is more resistant against hydrolysis, strong alkalis and thermal-oxidative
degradation than the acetal homopolymer.The latter, however, has higher
mechanical strength, stiffness, hardness and creep resistance as well as a
lower thermal expansion rate. Availability Sheet/Plate: Thickness 1-120mm,
Rods: Diameter 5-400mm.

Common Uses for Acetal / Delrin

Rollers made from Acetal

The challenge was to improve metal rollers in cargo truck lifts that were
being damaged in use. Impact resistant acetal (Ertacetal C) rollers absorb
collisions with loaded docks without deforming and causing the system to
fail. The benefits of acetal rollers are the weight reduction and ability to
bounce back made the dimensional stable rollers a better choice than other
materials.

Acetal Scraper Blades

Dairy nickel and stainless blades were costly and expensive to fabricate.
Acetal C (Ertacetal C) plate is machined into scraper blades used in
commercial ice cream manufacturing equipment. This allowed the blades to be
easily cleaned and prevent dirt or bacteria being trapped. The low internal
stress level of Ertacetal C means parts that are machined flat, stay flat.

Acetal worm gears and wheels

Vegetables are placed on a metal grid that advances through a freeze tunnel.
This grid is supported and driven by stainless steel sprockets which are
mounted on metal shafts. On one side of the tunnel, these shafts are driven
by a worm - worm wheel combination. The worm wheels are made of Ertacetal C
because of its high impact strength at -40°C and also its fatigue
resistance. The benefits are lower overall cost and increased productivity
because of less downtime.