The Punaise Underwater Dredger

  • Kris Visser
  • Per Bruun
Keywords: Dredging, dredger, underwater pump, bypassing, fluidization


The latest decades have experienced a continued progress in dredging fields by which equipment already in use has been improved. That includes machinery, pumps, pipes, controls, maneuvering and propulsion equipment etc. New inventions like water-injection dredgers, underwater pumps, and crawl cats have entered the market. This brief article addresses the use of the PinPoint Dredging or Punaise System, which was developed and tested in The Netherlands.

Technical Communications