The wide belt PS 21 F is a special abrasive specifically designed for extra tough materials. It is made up of a paper-based backing to which zirconia alumina grains have been applied with a close coating using synthetic resin. The combination of stable backing and self-sharpening grit turns the abrasive belt PS 21 F into a long-lasting abrasive that delivers an outstanding service life. It used primarily for grinding on:
Zirconia alumina is a special abrasive. Its abrasive grains are hard and particularly tough. The grit is composed of crystalline structures that form wedge-shaped grains. After becoming blunt from grinding, portions of the sharp-edged crystals, which make up the grains, will break out of the structure, leaving behind new, sharp edges. The result is a self-sharpening effect. This effect ensures that the abrasive will retain its abrasive performance almost completely throughout its entire lifetime.
The wide belt PS 21 F is designed for applications during which the workpieces are deburred or rounded. This abrasive belt is available in a large selection of grit sizes ranging from extra coarse to fine.
The wide belt PS 21 F is an endless belt. There are several ways to glue the joint together. The different joints are designed specifically for each application purpose.
