Tsurumi Launches Improved KRD Series

Tsurumi, one of the major manufacturers of dewatering and sewage pumps, is replacing one of its best-selling series. The reason for this is a significant increase in performance: The heavy-duty dewatering pumps for sand and slurry, previously known as KRS2, have been extensively upgraded and are now known as KRD.

This makes it easier to differentiate between the different series and sets new standards in terms of performance and reliability.

The pumps feature a number of improvements that make them even more powerful and robust, for example when used with sludge and bentonite. One of the most significant changes concerns the insulation class of the motors, which has been raised from B/E to F. The motors can now withstand temperatures of up to 155° Celsius, improving heat protection and extending the life of the pumps.

The housing material has also been optimised. The previous cast material FC150 (with a Brinell hardness of 212) has been replaced by FC200, which has a higher Brinell hardness of 223. This upgrade makes the pumps even more resistant to mechanical stress and ensures a longer service life, even in tough operating conditions – after all, they can pump water with hard rock up to 30 mm in diameter.

Tsurumi points out that the dimensions have changed slightly as a result of technical progress. The models in the series can achieve up to 4300 l/min or heads of up to 31 m thanks to motor outputs of up to 18 kW.