The DIMMINUTOR® provides automatic screening and grinding of liquid-borne solids with a straight-through open channel design. This unit reduces plastics, wood, vegetable matter, disposables and other oversized items to a fine particulate. The DIMMINUTOR®’s unique features, heavy precision construction, dependable operation and simplified maintenance have earned it a solid reputation amongst operators and specifying engineers worldwide.


  • High Flow Design
  • Designed for reliable operation
  • Easy maintenance
  • Dependable operation and simplified maintenance
  • No bearings or seals in the flow
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Franklin Miller Dimminutor

The DIMMINUTOR employs a smooth, continuously rotating high torque design. As its three biodirectional rotary cutters intermesh at close clearance with stationary cutters, solids are finely reduced to a size small enough to pass through a sizing screen. The DIMMINUTOR is designed for unobstructed floe even during reversing cycles. The DIMMINUTOR design had no gaps or openings between the screen and cutters, so output is controlled and complete reduction assured.


The DIMMINUTOR® is designed for reliable operation and easy maintenance. For example, with its cantilevered design, the DIMMINUTOR® needs no seals or bearings near the gritty channel floor. The unit’s screen is stationary so it never wears against bottom grit. Each cutter is interchangeable and cutters can be removed or adjusted independently. The unit’s seals and bearings are immersed in an oil bath for long life and low maintenance.


The DIMMINUTOR® is designed for ease of use and versatility. These units can be installed in straight through channels, wet wells or water inlets. They can be installed for full or occasional submergence. Units can be supplied with a standard bolt down sole plate or channel frames. Guide rails can also be supplied to facilitate removal from wet wells. A variety of drive configurations is available to meet most installation requirements including standard electric motors, dry running, (IP68) submersible explosion-proof motors, extended shafts or hydraulic systems.

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