Rubber

Materials provided by H&M Rollers have been developed to meet the tough demands of the various processes in the metal industry.

Demands which have been sucessfully addressed are:

  • Hardness range from 20 to 100 Shore A (in 5 degree increments)
  • High abrasion resistance
  • Superior acid & alkaline resistance
  • Oil resistance
  • Solvent resistance
  • Ozone resistance
  • High temperature tolerance
  • Continuous friction coefficient properties
  • Highly conductive & non conductive properties

Polyurethane

In certain applications polyurethane is the preferred roll covering material due to its exceptional physical properties.

Allthane Technologies International SA (Pty) Ltd is a specialist polyurethane roller and wheel covering company and a wholly owned subsidiary of H&M Roller Technologies (Pty) Ltd. This subsidiary produces all the polyurethane orders for the H&M Rollers group from the specialised facility in Vereeniging.

When comparing various polyurethanes, the roll covering materials used by Allthane are internationally proven to be superior in terms of physical and dynamic properties. These roll covers successfully address the demands of the environments where these rolls operate.


These demands include:

  • Hardness range from 30 to 98 Shore A
  • Superior cut and tear resistance
  • Superior abrasion resistance
  • High tensions stability
  • High pressure stability
  • High dynamic load stability
Allthane Technologies International SA(Pty) Ltd uses specialized polyurethane casting machines and international technology to cast these superior materials onto carefully prepared roller shells.

These roll covers are then cured in specially designed curing ovens to allow the material to reach its full operating properties.


After the rolls had been cured they are machined to the exact dimensional specifications provide by our customers, quality checked for hardness and consistency and then wrapped or packed for despatch. 

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