Abstract: Subject matter of the invention is a cutting ring for solids-loaded fluid of a pump, comprising a cutting ring base body forming an opening for cooperation with a cutting head, which cutting ring can be stationarily connected to the pump in an axial extension of an impeller of the pump, wherein a plurality of cutting teeth comprising respectively at least outer cutting edges oriented away from the impeller in the direction of a suction side of the pump are provided at the cutting ring base body around the opening, wherein the cutting teeth extend axially away from the cutting ring base body outwardly at least in the direction of the suction side, and at least in the outwardly extending cutting teeth a respective radially outwardly extending material recess is formed, and/or a radially outwardly extending axial depression is formed in the cutting ring base body in a valley between two at least outwardly extending cutting teeth.

Abstract: Subject matter of the invention is a cutting ring for solids-loaded fluid of a pump, comprising a cutting ring base body forming an opening for cooperation with a cutting head, which cutting ring can be stationarily connected to the pump in an axial extension of an impeller of the pump, wherein a plurality of cutting teeth comprising respectively at least outer cutting edges oriented away from the impeller in the direction of a suction side of the pump are provided at the cutting ring base body around the opening, wherein the cutting teeth extend axially away from the cutting ring base body outwardly at least in the direction of the suction side, and at least in the outwardly extending cutting teeth a respective radially outwardly extending material recess is formed, and/or a radially outwardly extending axial depression is formed in the cutting ring base body in a valley between two at least outwardly extending cutting teeth.

Abstract: Subject matter of the invention is a cutting ring for solids-loaded fluid of a pump, comprising a cutting ring base body forming an opening for cooperation with a cutting head, which cutting ring can be stationarily connected to the pump in an axial extension of an impeller of the pump, wherein a plurality of cutting teeth comprising respectively at least outer cutting edges oriented away from the impeller in the direction of a suction side of the pump are provided at the cutting ring base body around the opening, wherein the cutting teeth extend axially away from the cutting ring base body outwardly at least in the direction of the suction side, and at least in the outwardly extending cutting teeth a respective radially outwardly extending material recess is formed, and/or a radially outwardly extending axial depression is formed in the cutting ring base body in a valley between two at least outwardly extending cutting teeth.

Abstract: Subject matter of the invention is a cutting ring for solids-loaded fluid of a pump, comprising a cutting ring base body forming an opening for cooperation with a cutting head, which cutting ring can be stationarily connected to the pump in an axial extension of an impeller of the pump, wherein a plurality of cutting teeth comprising respectively at least outer cutting edges oriented away from the impeller in the direction of a suction side of the pump are provided at the cutting ring base body around the opening, wherein the cutting teeth extend axially away from the cutting ring base body outwardly at least in the direction of the suction side, and at least in the outwardly extending cutting teeth a respective radially outwardly extending material recess is formed, and/or a radially outwardly extending axial depression is formed in the cutting ring base body in a valley between two at least outwardly extending cutting teeth.

Abstract: A method for producing a submersible motor pump for pumping waste water and/or sewage includes a cylindrical pot-shaped housing forming an inner space between an open base surface and a cover surface axially opposite the base surface, including a connector opening provided in the pot-shaped housing, a motor provided in the inner space and comprising a cylinder-like stator comprising a plurality of windings and a first connector connected to ends of the windings, in particular oriented towards the cover surface and provided with at least one radially resilient latching tab, including the steps of gripping the first connector from outside the pot-shaped housing through the connector opening, inserting the first connector from the inner space into the connector opening, and latching the at least one latching tab to the pot-shaped housing.