Karcher HDS 10/21-4M Hot Pressure Washer - Clean Machines
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Karcher HDS 10/21-4M Hot Pressure Washer

The latest 2024 Hot Water 3 phase model launched by Karcher.

User-friendly, powerful hot water high-pressure cleaner with 4-pole, water-cooled electric motor, economical eco!efficiency mode and 2 detergent tanks.


Product Enquiry SKU: 1.071-939.0 Category:


The HDS 10/21-4 M is one of the most powerful hot water high-pressure cleaners in the middle class and also impresses with its sophisticated ergonomics and high level of user-friendliness. Its low-speed, 4-pole and water-cooled electric motor, the robust 3-piston axial pump with ceramic piston and the economical eco!efficiency mode simultaneously ensure maximum performance and reliable, economical operation. The energy-saving EASY!Force Advanced HP trigger gun with servo control and 1050-millimetre-long spray lance with patented nozzle technology as well as the EASY!Lock quick-release fasteners are also included as standard for fatigue-free and time-saving work. Many other equipment and performance details are also impressive, such as the optimised burner engineering, the 2 detergent tanks, the convenient mobility concept, the extensive safety technology, the simple operation with just one switch or the clever accessory storage options.


Technical data

Current type (Ph/V/Hz) 3 / 400 / 50
Flow Rate (l/h) 500 – 1000
Operating pressure (bar/MPa) 30 – 210 / 3 – 21
Temperature (supply 12°C) (°C) min. 80 – max. 155
Power rating (kW) 8
Consumption fuel oil (kg/h) 7.3
Heating oil consumption, eco!efficiency (kg/h) 5.8
Power cable (m) 5
Fuel tank (l) 25
Weight (with accessories) (kg) 160.2
Weight incl. packaging (kg) 170.1
Dimensions (L × W × H) (mm) 1330 x 750 x 1060

Accessories Included

Scope of supply

Accessories Included

  • Trigger gun: EASY!Force Advanced
  • High-pressure hose: 10 m, Longlife, DN 8,400 bar
  • Spray lance: 1050 mm
  • Power nozzle


  • ANTI!Twist
  • Tanks for detergent, scale inhibitor and fuel can be filled from outside
  • Control panel with indicator lamps
  • Pressure switch control
  • Pole reversing plug (three-phase)
  • Two detergent tanks
  • Dry running protection



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