The Dredging Specialists Piranha Diver Cutterhead is a
revolutionary tool that will dramatically increase diver-dredging production. Tests show a
233% increase in production. Up to 14 cubic yards per hour.
The Piranha Diver Cutterhead, coupled to a 4-in. or larger
pump, makes a complete diver dredging system.
Two counter rotating cutters excavate mud and mix it into
a pumpable slurry.
Counter rotation of the cutters eliminates the diver
feeling any torque reaction.
The diver has complete control over starting,
stopping, and reversing the cutters.
Each cutter has 6 blades. The swept area is 20-in.
by 10-in. by 6-in.
The rotating cutters bring the material directly to the
Two hydraulic motors drive the cutters. The motors, valves
and hoses are enclosed in a water tight aluminum case.
The aluminum case provides neutral buoyancy, this
eliminates the diver from having to manipulate any weight.
By making the material pumpable, the problem of the
suction hose being sucked into the mud and getting stuck, is eliminated.
The rotating cutters release any gas that is trapped in
the material. This eliminates the pump from becoming air locked.
Eliminates the need for any ineffective jetting
Completely safe. The diver cannot tilt
the cutterhead sufficiently for the cutters to contact any part of his