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.

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 700 mm

⌀ 150 x 850 mm


⌀ 180 x 600 mm