Tsurumi 100CZ47.5 Cast Iron Submersible Cutter Pump for Raw Sewage Transfer with Semi-open Channel Impeller

This specialized submersible pump handles untreated wastewater containing large fibrous solids in harsh municipal environments. It provides a stable solution for underground sumps and waste processing tanks with fluid temperatures up to 40°C. The design focus on reliability reduces the need for manual intervention and clearing in complex waste management networks. Installation flexibility is provided through optional free-standing stands or cast iron duckfoot bends for professional guide rail fitting systems.

Driven by a robust 7.5 kW three-phase motor, the pump delivers a maximum flow rate of 2800 L/Min on a 415v supply. It operates with a rated current of 16.1 Amps and utilizes a 4-pole configuration at 50Hz for steady torque delivery. The unit reaches a maximum total head of approximately 24.2 meters and is compatible with Star-Delta starting upon request for system power management. High rotational stability supports efficient crushing and shredding of dense solid matters across the entire performance range.

The hydraulic assembly uses a scissor-type crushing system that shreds fibrous waste before it enters the discharge passage. Oversized solids are reduced into smaller fragments, allowing more reliable transfer through the hydraulic passage while minimizing blockage during continuous operation. The flow path is designed to keep solids moving efficiently through the pump, maintaining stable hydraulic performance in municipal waste streams. Internal components are specifically angled to direct solids into the high-torque cutting zone for rapid material reduction.

Heavy-duty cast iron construction provides the strength required for continuous wastewater service, while the rotating assembly resists repeated impact from suspended solids. Sealing and motor protection systems are incorporated to maintain long-term reliability under submerged operating conditions. A dual-face sealing arrangement ensures the internal motor environment remains clean and dry even in abrasive conditions. Automated protection is provided by a thermal interruption device that cuts power during electrical or thermal overload events.

FEATURES

• Innovative twin-vane semi-open impeller focuses hydraulic force to shred large fibrous solids into manageable fragments.
• Stationary heart-shaped suction blade provides a durable cutting edge for continuous processing of municipal waste materials.
• Extended rotating guide improves operational reliability by preventing the retention of solids at the impeller eye.
• Ductile Cast Iron JIS FCD500 impeller and suction cover offer superior resistance to impact force and wear.
• Dual inside mechanical seals with Silicon Carbide faces ensure a clean lubricating environment for motor shaft protection.
• Tsurumi Oil Lifter forcibly supplies lubricant to seal faces to prolong seal life during submerged operations.
• Integrated Circle Thermal Protector offers automated circuit interruption to protect motor windings from overheating or overcurrent.
• Anti-wicking cable entry block prevents moisture ingress into the motor housing even if the sheath is damaged.