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Schalkshofen pumping station, Germany

The project:

Replacement of a dry-installed pump at the Schalkshofen pumping station by a submersible pump with cutter. Sewage disposal for the municipality of Oberroth with approx. 890 inhabitants.

Executing company:

Landmaschinen Mayer, Unterroth


Tsurumi project leader:

Ernst Mutzel

(Field Sales for Baden-Württemberg)


The problem:

Formation of ragging in operation, causing a gradual loss of performance and eventually stopping the pump, thereby triggering an alarm due to high water level.

Pump has to be dismantled regularly to remove the ragging.


The solution:

Installation of a type 100C43.7 grinder pump. The impeller shreds the fibrous constituents of the sewage. This prevents ragging and guarantees trouble-free operation, with fewer time-consuming repairs by the sewage works operators.

In the event of abrasive and corrosive utilization, stronger wear and tear will take place naturally in certain components. With regards to the above application wear and tear can take place mainly in impeller, agitator, suction plate, shaft sleeve, oil ring, mechanical seal, pump casing, strainer, motor casing and discharge coupling. Depending on the working conditions the lifetime of those parts might vary significantly and can be shorter than the legal warranty period.
In this regard, please pay attention to our general terms and conditions that we also send to you by mail on request.