The STASSKOL dynamicSeal SDP500 was developed by the sealing experts to work as a special seal for vertically installed mixers.

For easy assembly, the seal components are largely pre-assembled. This guarantees the optimum installation position of all components and protects the sealing elements against damage during assembly.


The SDP500 mixer seal from STASSKOL is suitable for sealing against suspensions, powder and dust and has been optimised for the usage in mixing technology with emphasis on particularly critical media, e.g. colour pigments.

Type Overview

The design can be determined to any shaft diameter and can be adapted flexibly to meet different installation conditions. The shaft seal SDP500 is adapted to the customized specification. The option model can depart from figure. For more information, please click on the download button.


The seal features a rotating mating ring clamped on the shaft, and the axially movable sliding ring. The seal is pressurised with a buffer gas. This prevents full ingress of the mixed material into the sealing area.