Hot Pressure Washer

Kärcher’s HDS middle class hot water high-pressure cleaners reach very high levels of performance, reliability and economy. With innovative features such as the eco! Efficiency mode, offering fuel savings of up to 20% without compromising cleaning performance, 4-pole motors for high performance and long life, on-board diagnostics, and 3-year burner coil warranty, the HDS middle class range provides our customers with the toughness, cleaning power, and low running costs they demand. The HDS 7/9-4 M features a 4-pole, air-cooled 110V electric motor with long-life bearings and a 3-piston axial pump with ceramic pistons. With water flow of up to 700 litres per hour, and up to 90 bar pressure, the 7/9 is a great all-round machine with superb performance for daily and deep cleaning jobs where 110V power supply is required.


  • Current type Ph. /V/Hz 1 / 110 / 50
  • Flow rate (l/h) 350 – 700
  • Pressure (bar/MPa) 30 – 90 / 3 – 9
  • Max. Temperature (°C) 80 – 155
  • Power rating (kW) 3.2
  • Consumption fuel oil (kg/h) 4.6
  • Fuel tank (l) 25
  • Fuel tank (cc³) –
  • Weight (kg) 146
  • Dimensions (L x W x H) (mm)
  • 1330 x 750 x 1060
  • Working temperature: 18-32 °C
  • Weight: 19kg
  • Humidity removal: 1,2l/h
  • Outlet pipe length: 1500mm
  • Outlet pipe Ø: 142 mm