This machine is used to break up and disperse impurities such as sticky and viscous materials in recycled paper pulp‭. ‬Using a combination of heat and mechanical force of the discs‭, ‬the machine converts coarse impurities‭ (‬such as glue‭, ‬wax or resin‭) ‬into very fine particles that are not visible to the naked eye‭. ‬This prevents these materials from sticking to the body of the machines‭ ‬in subsequent stages and does not reduce the final quality of the paper‭.‬