High-pressure washer HDS 9/20-4 M

Extremely user-friendly middle class hot water high-pressure cleaner with robust 3-piston axial pump, water-cooled 4-pole electric motor and 2 detergent tanks.

The HDS 9/20-4 M hot water high-pressure cleaner from Kärcher combines the highest cleaning quality with the best ergonomics and user-friendliness. High-quality components and systems, such as the robust 3-piston axial pump with ceramic piston, the low-speed, water-cooled, 4-pole electric motor, optimised burner engineering and the economical eco!efficiency mode, ensure safe and economical operation. The innovative EASY!Force Advanced HP trigger gun with servo control and 1050-millimetre-long stainless steel spray lance with patented nozzle technology is also included as standard for effortless, fatigue-free and ergonomic work. The middle class machine also impresses with its 2 detergent tanks, intuitive 1-switch operation, ergonomic accessory storage, time-saving EASY!Lock quick-release fasteners and a sophisticated mobility concept. Consistently applied safety technology with water filter, safety valves and SDS hose also reliably protects the particularly maintenance-friendly HDS 9/20-4 M from damage.

Features and benefits
High efficiency
  • In eco!efficiency mode, the machine operates in the most economical temperature range (60 °C) – with full water flow.
  • The burner cycles are optimised to reduce fuel consumption by 20% compared to full load operation.
Wide-ranging accessories with EASY!Lock
  • EASY!Force Advanced for fatigue-free work without any holding force.
  • Pressure and water volume can be adjusted on the Servo Control controller positioned between the lance and trigger gun.
  • Rotating 1050 mm stainless steel lance.
Maximum efficiency
  • Highly efficient, tried-and-tested "Made in Germany" burner technology.
  • 4-pole electric motor with 3-piston axial pump.
  • Water-cooled motor for a high performance and long service life.
Operational safety
  • Easy-to-access water filter protects the pump against dirt particles in the water.
  • Safety valves, water shortage and fuel protection ensure the availability of the machine.
  • The Soft Damping System (SDS) compensates for vibration and pressure peaks in the high-pressure system.
Multiple storage spaces for accessories integrated into the machine
  • On-board storage for full range of accessories. Includes 2 hooks for suction hose and power cord.
  • Spacious storage compartment, e.g. for detergents, gloves or tools.
Detergent dosing
  • Easy to switch between detergent tank 1 and 2.
  • Precise detergent dosing unit with rinse function.
Mobility concept
  • "Jogger" design with large rubber wheels and steering roller.
  • Integrated tipping trough for effortless transport over ledges.
  • Push handles for simple transport and manoeuvrability. 
Easy to use controls
  • One switch for all unit functions.
Specifications

Technical data

Supply voltage (Ph/V/Hz) 3 / 400 / 50
Flow rate (l/h) 450 - 900
Working pressure (bar/MPa) 30 - 200 / 3 - 20
Temperature (for supply 12 °C) (°C) min. 80 - max. 155
Connected load (kW) 7
Consumption of heating oil or gas at full load (kg/h) 6,5
Consumption of heating oil in eco!efficiency mode (kg/h) 5,2
Power cable (m) 5
Fuel tank (l) 25
Weight (with accessories) (kg) 155,2
Weight incl. packaging (kg) 165,1
Dimensions (L x W x H) (mm) 1330 x 750 x 1060

Scope of supply

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

Equipment

  • Cleaning agent function: 20 + 10 l tank
  • ANTI!Twist
  • Tanks for cleaning agents, calcification protection and fuel that can be filled from the outside
  • Control bar with display light
  • Pressure switch-off
  • Pole reverse plug (3~)
  • 2 cleaning agent tanks
  • Dry-running protection
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
High-pressure washer HDS 9/20-4 M
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Cleaning agents