Shear tool

A shear tool is a machine or functional element that applies targeted shear forces to a product in order to comminute, deagglomerate and disperse particles, or to mix materials intensively. Through tangential relative movements between material layers or particles, shear tools bring about a mechanical structural change in the product.

In powder and process engineering, shearing tools are used, for example, in high-performance mixers, granulators, dispersers, mills or extruders. Their effect depends on the geometry, rotational speed, gap width, peripheral speed and product properties. Typical shear tools include rotor-stator systems, shear blades, shear bars, knife heads or narrow shear gaps.