Compensating rings

Compensating rings are steel supoporting rings used for the assembly purpose of the wear rings. It’s main task is to provide a continuous tightness between wear ring and wear plate. They are also assembled as a protection against deformation of the S-valve face-edge. As a steel rings are most commonly used in the italian concrete pumps – such as CIFA and SERMAC. In concrete pumps of all other brands (Putzmeister, Schwing, Evedigm, Waitzinger, Reich) the rubber pressure rings are used equivalently. The pressure rings and compensating rings are always exchanged together with wear rings.

Most frequently used compensating rings and pressure rings:
Description Catalogue number Purpose Aplication Item picture
Compensating ring S6 222833 CIFA Applied in the truckmixer pumps produced by CIFA. Type MAGNUM METRO 25, MAGNUM METRO 28, MAGNUM MK 24, MAGNUM MK 28, MAGNUM MK 28L. With the pumping units type PB606 L / S6 oraz PB607 L / S6. Compensating rings S6 CIFA 222833
Compensating ring S7 215744 CIFA Applied in the truckmixer pumps produced by CIFA. Type MAGNUM MK 28L, MAGNUM MK 32L. With the pumping units type PB607 L / S7. Compensating ring S6 CIFA 215744
Compensating ring S7 1007077 CIFA Applied in the truckmixer pumps produced by CIFA. Type MAGNUM MK 28L, MAGNUM MK 32L. With the pumping units type PB806 L / S7.
Pierścień kompensujący S8 215497 CIFA Applied in the boom concrete pumps produced by CIFA. Type K 31, K 32, K 36, K 41, K 48… With the pumping units type PA 907 F8, PA 1206 F8, PA 1506/909 F8 oraz HPG 1808/1113 IF8. Compensating ring S8 CIFA 215497
Compensating ring S9 245218 CIFA Applied in the boom concrete pumps produced by CIFA. Type K 31, K 36, K 41, K 48… With the pumping units type HPG 1808/1113 IF9. Compensating ring S9 CIFA 245218
Compensating ring SCC 1031138 SERMAC Applied in the truckmixer pumps produced by SERMAC. Type 3Z24, 4Z28, 4Z33. With the pumping units type SCC 67A, SCC 73A. Compensating ring SCC SERMAC 1031138
Compensating ring SCL 1031103 SERMAC Applied in the boom concrete pumps produced by SERMAC. Type 5Z33, 5Z35, 5Z36, 5Z37, 5Z41, 5Z42, 5RZ50… With the pumping units type SCL 120, SCL 130A, SCL 150AHP.