Tag Archives: Tsurumi

Tsurumi to bring the pump workshop to Bauma 2022

Tsurumi, a dewatering pump leader, says it will be lifting the veil on its new safety pumps at Bauma 2022, in Munich, Germany, in October, offering visitors the chance to learn how to service a pump properly.

For the first time, the exhibitor is coming to the show with a workbench where visitors can demonstrate their skills. The task is to service a pump, especially in the sensitive areas of hydraulics and electrics, reinforcing the need to carry out regular maintenance to avoid pump failures.

Safety is also the focus of the new product presentation, which the Japan-based company has saved as a further treat.

For the first time, the company will showe the KRDX, a model in its new series of safety pumps that are approved according to IECEx and ATEX standards.

The three-phase submersible heavy-duty pumps are designed for slurry drainage/pumping and have motor outputs from 3.7 kW to 7.5 kW. They are equipped with an agitator and an outlet of up to 100 mm to pass solids up to 33 mm in size. Tsurumi states a pumping capacity of 2,200 litres/min.

Completing the safety trifecta will be Tsurumi’s Connect system for monitoring of pumps and other machines, including those from third parties. Via a small box on the unit, the operator can determine the location, read out performance data and set alarm and error scenarios. The aim is to raise safety and efficiency to a new level, with the first systems already in use on the market.

The manufacturer will also use the show, taking place on October 24-30, to provide information on many other pump models, including the residue dewatering pump LSC2.75S, and the KTZ and KRS pump series.

Tsurumi ups the slurry pumping ante with GPN 837

Tsurumi has released a new heavy-duty slurry pump that, it says, almost doubles the output of its predecessor pumps.

Coming with a water output of up to 9,000 litres/min, the new GPN 837 is the top model in the series, topping the GPN 622.

“However, ‘water’ can hardly be taken literally: declared as a “heavy sand pump”, the GPN 837 is intended for use wherever considerable amounts of solid matter are involved,” the company says.

This includes gravel pits or where sand, sludge, slurry and preferably also bentonite are involved. Mining is also a target market.

With these applications in mind, the engineers designed the pump with a solid construction. At 150 litres/s, hard rock up to 30 mm in size can pass through the pump with ease. Also, the agitator at the suction opening mixes mud and water so that the solution becomes more fluid.

The pump comes with a dry weight of 815 kg, a height of roughly one meter, is driven by an electric motor with 37 kW (400 V) and can pump vertically up to 24 m. When submerged, it is pressure-resistant to a depth of 30 m, the company says.

The water is diverted in a spiral around the pump – a design to counter the high abrasive effect of the pumped medium – while the impeller and suction plate is made of chrome cast iron, the housing of grey cast iron GG 20. For critical elements such as the double inside mechanical seal, the manufacturer uses silicon carbide. Tsurumi´s oil lifter, which lubricates the pump shaft in any position reliably by centrifugal force, is also a feature.