Pump, e.g. for machine tools for supplying cooling lubricant emulsions polluted with metal filings, has a cutting running wheel, associated counter blades and a coarse-crusher

摘要

A coarse-crusher (48) is driven by a shaft section (46) that emerges axially from a cutting running wheel (38). Counter blades (40) carry a cutting edge (52) that runs in the lengthwise direction of the shaft section and extends over the whole axial length of the shaft section as far as the coarse-crusher.