PA – Cast Nylon Polyamides

The material alpharim is a variety of cast nylon, often also written as PA Cast, PA6C or nylon type 6. alpharim polymers GmbH produces out of this modified PA6 block copolymer semi-finished products (sheets and rods) and also finished products.

Cast Nylon polyamides is a high molecular and high crystalline polymer. Nylon Type 6 semi-finished and finished products are produced in a special casting process, where the raw material Caprolactam is polymerized in a controlled chemical reaction.

For the production of finished and semi-finished PA cast we use the NYRIM product.

By adding an elastomer on a variable basis, the production of a tailored made material for a wide field of application is possible.

Compared to extruded Nylon, the casted PA6 shows a higher degree of crystallisation and better characteristics for machining.

With our own RIM (Reaction Injection Moulding) procedure we can produce modified Cast Nylon polyamides, or PA6C or PA6G up to a weight of 35 kilos.

Polyamid finished parts

Polyamid finished parts are cut and milled with conventional machines  and tools out of our plates and rods. We recommend carbid tipped tools.

The formation of the cuttings changes with increasing the machining thickness. The formation goes from ribbon cuttings with smooth run-off to very irregular and awkward brittle cuttings, with unfavourable cutting surface finish, if the machining thickness is too much.

Characteristics of Cast Nylon polyamides

  • Little or no inner tension
  • High degree of crystallisation
  • High toughness combined with strong rigidity
  • High resistance to wear
  • High resistance to abrasion
  • Strong damping characteristics
  • Easy to machine

Semi-finished parts made of PA6 Nylon

  • alpharim 1500 – standard product in colour yellow as semi-finished part on stock
  • alpharim 3000 – higher impact modified, strong impact resistance
  • alpharim 4000 – strongest impact resistance
  • alpharim 1525 – modified with glass in order to achieve the best combination of high impact and high rigidity 
  • alpharim 2025 – reinforced with glass with higher impact strength compared to quality

Typical applications for Nylon cast and alpharim Nyrim cast

  • Resilient and robust parts for heavy loads
  • Wear resistant parts
  • Damping plates
  • Dozer pads
  • Rollers, cylinders and barrels
  • Spring relief blocks for heavy tools
  • High impact parts for winter industry

Semi-finished parts made from alpharim

alpharim Halbzeuge

Plates: dimensions

Rods: dimensions

10 x 300 x 900 mm

⌀ 30 x 1000 mm

30 x 300 x 900 mm

⌀ 40 x 1000 mm

50 x 300 x 800 mm

⌀ 50 x 1000 mm

60 x 300 x 800 mm

⌀ 65 x 1000 mm

80 x 300 x 800 mm

⌀ 79 x 1000 mm

100 x 300 x 800 mm

⌀ 100 x 1000 mm

110 x 300 x 800 mm

⌀ 110 x 1000 mm

120 x 300 x 800 mm

⌀ 120 x 1000 mm

130 x 300 x 800 mm

⌀ 130 x 1000 mm

150 x 300 x 680 mm

⌀ 150 x 850 mm

⌀ 180 x 600 mm