Unijet D 500 Bar - 30 Lpm

Waterjetting unit with sandblasting and hot water compatibility up to 500 bar, driven by a diesel engine for the Shipping Industrial and Construction sector.

Unijet waterjetting applications up to 500 Bar:

  • Surface preparation prior to painting. Roadstripe removal with sandblasting equipment or hot water application
  • Ship & boat cleaning, tanks, mixers, rust removal with sandblasting equipment, docks and general cleaning on board, containers, refineries, chemical plants, food industry etc
  • Removal of marine growth, barnacles, underwater blasting, pipe cleaning

Technical Characteristics

Engine design:

  • Choice of Lombardini or Yanmar
  • Four-stroke water cooled diesel engine

Pump design:

  • Stainless steel crankshaft drive pump with five ceramic plungers for high efficiency, long service life and low maintenance costs
  • Pump max. water temperature at 45˚C
  • Thermal valve
  • Pressure regulator valve (adjusting pressure from 50 bar up to max. operating pressure)
  • Safety valve (set 10% above operating pressure) for pump protection against overpressure
  • Pump oil level indicator

High pressure unit design:

  • Skid manufactured with galvanized steel robust and wear resistant, fully equipped with lift hooks or fork pockets
  • Fuel tank manufactured from stainless steel 304L 3mm with adequate capacity to keep the engine supported with level switch
  • Water tank manufactured from stainless steel 304L 3mm with adequate capacity to keep the pump supported
  • Powerband belt drive providing high torque carrying capabilities
  • Safety shutdown systems protecting against low oil pressure and high temperature
  • Inlet pressure switch against poor water flow
  • 10-micron inlet water filter for long service life of the pump
  • High pressure gauge for visual pressure monitoring with pressure snubber, absorbing vibration shocks and providing more accurate pressure readings
  • Certification of 45’ machine test run on max. operating pressure


Model 500D30
Max. operating pressure 500 bar
Max. water flow rate 30 lpm
Engine output power 51 HP
Plunger material Solid ceramic
Pump head material Stainless Steel
Motor speed 3600 rpm
Crankshaft speed 1450 rpm
Weight 450 Kg
Dimensions 150x200x150 cm


The unit comes with the following equipment (standard configuration):

  • High pressure gun
  • 70 cm high pressure lance
  • Flat jet nozzle
  • 10m high pressure hose 600 bar
  • Manual book


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