HDS 10/20-4M Classic

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Hot Water High Pressure Cleaner

The most powerful three-phase hot water high-pressure cleaner in the Kärcher middle class: HDS 10/20-4 M Classic. With 4-pole, water-cooled electric motor, two cleaning agent tanks and much more.

  Learn how hot water pressure cleaners can disinfect large areas

Eco mode increase efficiency of machine even when operating at a full load.

Two cleaning agent tanks.

Enjoy enhanced cleaning performance with hot water.

Product Video

Uncompromising in every respect: maximum pressure, maximum flow rate. The HDS 10/20-4 M Classic hot water high-pressure cleaner is the most powerful machine in the Kärcher middle class. The innovative eco!efficiency mode, precise cleaning agent dosing unit and optimised burner engineering reduce the impact both on the environment and on your wallet to a minimum, while the patented nozzle technology, ceramic pistons, turbo blower and outstanding pump efficiency ensure top cleaning results. Ease of operation is also ensured by an intuitive control panel, LED displays and a sophisticated mobility concept, all of which simplify operation and transport of the machine. Servicing and maintenance work is easy, as all of the relevant components are easily accessible and operating data can be retrieved at any time.

Features & Benefits

  • Eco!efficiency mode provides the most economical operations at 60°C even with full water flow
  • Soft Damping System (SDS) compensates for vibration & pressure peaks
  • Large integrated water fine filter protects the high-pressure pump from small dirt particles
  • Water cooled motor for high performance and durability
  • On-board storage and hooks for cables, hoses, protective gear, accessories and cleaning agents
  • Eyelets for safe loading and transportation


  • Easy pressure trigger gun with soft grip
  • High pressure hose (10m)
  • Spray lance (1050mm)
  • Power nozzle
  • Steam nozzle
  • Anti-twist system (AVS)
  • Dry-run protection

Application areas

  • Vehicles
  • Device and machinery cleaning
  • Workshops
  • Service stations
  • Facade & swimming pools
  • Production & light manufacturing facility cleaning
Product code 1.071-425.0
Flow rate 500 - 100 L/h
Working pressure 30 - 200 bar
Max inlet temp 80 - 155°C
Current 400 V | 3 Ph | 50 Hz
Connection load 7.8 kW
Heat oil/gas consumption 6.4 kg/h (full load)
5.1 kg/h (eco!efficiency mode)
Fuel tank 25 L
Weight 171 kg
Dimensions L1330 x W750 x H1060 mm
Spec Sheet Download PDF
Manual Download PDF
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