Tsurumi NKZ Series Sand Pumps

The NKZ Series is a heavy-duty submersible slurry and sand pump range designed for sludge, various types of slurry, and liquids containing sandy mud. It is suited to abrasive site conditions where settled material needs to be kept moving and transferred efficiently. The range uses an agitator, spiral flow design and forced motor cooling to support smooth slurry passage and continuous operation, even when the motor is exposed to air. Available in 80mm, 100mm and 150mm discharge bore models, with motor outputs from 2.2kW to 11kW, the NKZ Series is a practical option where durability, wear resistance and fixed installation flexibility are important. For broader product options, view the wider Tsurumi pumps range.

Key features

• Built for slurry and sandy mud: Designed for sludge, various types of slurry and liquids containing sandy mud, making the range suitable for demanding sand and slurry pumping duties.
• Agitator assisted transfer: The agitator is fitted on the motor shaft extension to stir settled material and help transfer slurry, sand and mud more efficiently.
• Spiral flow design: The spiral design helps fluids containing slurry, sand or mud pass through the pump smoothly.
• Forced motor cooling: A portion of the pumped liquid flows between the outer cover and motor housing before discharge, helping cool the motor during operation.
• Continuous operation with exposed motor: The cooling design supports long and continuous operation, even when the motor is exposed to air.
• Heavy-duty model range: The range includes 80mm, 100mm and 150mm discharge bore models, with motor outputs from 2.2kW to 11kW.
• Semi-open impeller: The NKZ Series uses a semi-open impeller, with ductile iron casting used as standard and chromium iron casting used on H type models.
• Seal protection: The range uses a double mechanical seal with silicon carbide seal faces.
• Motor protection: A built-in Circle Thermal Protector helps protect the motor if excessive heat or overcurrent occurs.
• Guide rail fitting option: A guide rail fitting system is available as an optional setup, helping support fixed piping installations where maintenance access is important.