The Tsurumi CZ-series submersible smashing cutter pumps are engineered for superior performance in handling sewage and wastewater containing solid wastes, including fibrous materials. A key feature is the innovative heart-shaped suction cover, which is equipped with a sharp-edged stationary blade. This design works in conjunction with the rotating leading blades, creating a scissor-like mechanism that efficiently crushes and shreds solid materials, significantly enhancing the pump's solid handling capabilities.

Another important feature of the CZ-series is the extended rotating guide integrated into the impeller. This prevents the accumulation of solid waste at the center of the impeller, a common cause of clogging in conventional pumps. By guiding waste toward the sharp-edged blades, the extended rotating guide ensures a smooth and uninterrupted pumping operation, thereby increasing reliability and efficiency.

Source: Tsurumi

Durability is another crucial factor prioritized in the design of the Tsurumi CZ-series, with the impeller and suction cover constructed from ductile cast iron, which is highly resistant to impact forces. The pump casing material is made from FC250 gray cast iron, enhancing both strength and longevity. In addition, the pumps are equipped with dual internal mechanical seals featuring silicon carbide faces, which offer superior resistance to wear and corrosion, further extending the lifespan of the pump.

The TPKR series pump includes several additional key features for enhanced performance and longevity. The oil lifter provides lubrication and cooling to the seal faces, prolonging seal life, while the oil seal acts as a dust barrier to protect the mechanical seal. The back pull-out design simplifies maintenance by allowing easy separation of the motor and pump. An air release valve prevents air lock, and the anti-wicking cable entry prevents water and moisture from entering the motor housing.

In addition, thanks to a continuous-duty rated, dry-type induction motor, the CZ-series pumps are designed for continuous operation. They come with built-in motor protection to prevent overheating and overcurrent, ensuring safe and reliable operation.