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BN Series - Submersible Smashing Cutter Pump

The Tsurumi BN Series is a heavy-duty submersible wastewater pump engineered for applications where clogging is a constant challenge. Its exclusive smashing cutter mechanism efficiently handles solids and long fibrous materials, while rugged construction and proven Tsurumi technologies deliver dependable performance, extended service life, and simplified maintenance. Ideal for municipal, commercial, and industrial wastewater applications where reliable solids handling is essential.

Engineered to Shred the Toughest Solids

The BN Series  features Tsurumi’s unique Heart-shaped Suction Cover and semi-open channel impeller with an extended rotating guide. This design crushes and shreds solids and fibrous materials more effectively than conventional cutter pumps, while improving cutting performance and preventing clogging. It ensures smooth waste transfer and delivers reliable, high-efficiency operation.

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HEART-SHAPED STATIONARY SUCTION BLADE: Crushes and shreds solids for improved solids handling.

ROTATING LEADING BLADE: Works with the stationary blade to efficiently cut solids and fibrous materials.

EXTENDED ROTATING GUIDE: Directs solids into the cutting blades to reduce clogging and improve reliability.

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SECTIONAL VIEW

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  1. ANTI-WICKING CABLE ENTRY: Prevents water from entering the
    motor through the cable, protecting the motor from moisture and
    condensation.
  2. MOTOR PROTECTOR: Built-in thermal protection automatically
    shuts off the motor during overheating or overload conditions to
    help prevent damage
  3. DUAL INSIDE MECHANICAL SEALS WITH SILICON CARBIDE FACES:
    Oil-lubricated dual mechanical seals with silicon carbide faces
    provide exceptional resistance to wear, heat, and corrosion for
    longer seal life
  4. OIL LIFTER: Tsurumi’s exclusive Oil Lifter continuously lubricates
    and cools the seal faces, extending seal life even at low oil levels.
  5. OIL SEAL: Acts as a dust seal to protect the mechanical seals
    from abrasive particles and contaminants
  6. BACK PULL-OUT DESIGN: Allows the motor and impeller assembly
    to be removed without disconnecting the pump casing, simplifying
    maintenance and inspection.
  7. AIR RELEASE VALVE: Automatically releases trapped air to prevent
    air lock and maintain reliable pump operation.

Group Curves

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MODELS

BN Series Catalog

ModelMotor Output (hp)

Discharge Size

(inch)

PhaseStarting Method

Dimensions 

(inches)

Weight

(lbs)

Cable Length

(ft)

Need Thermal  Relay in panel
100BN41.5243D.O.L23.9 x 11.6 x 24.914132No
100BN42.2324.8 x 13.4 x 26152No
100BN43.7524.8 x 13.4 x 27.9176No
100BN45.57.527 x 16.1 x 36.6331No
100BN47.51027 x 16.1 x 35.9348No
100BN4111528.4 x 17.2 x 39.4472Yes
100BN4152028.4 x 17.2 x 42.1509Yes

APPLICATIONS

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    Municipal

  • Industrial Application.jpeg

    Industrial

  • Commerical Application.jpeg

    Commercial