HDS 9/50 De Tr1

Self-sufficient hot water, high-pressure cleaning at 500 bar pressure! The HDS 9/50 with powerful diesel engine and trailer base is the perfect choice for construction sites, in industry or in the municipal sector.

The HDS 9/50 generates 500 bar pressure, offers a high degree of mobility and is part of the machine class of trailer-based hot water high-pressure cleaners. Thanks to its powerful diesel engine, the machine works entirely independently of power sources in any conceivable place.

Features and benefits
 HDS 9/50 De Tr1: Maximum efficiency
Maximum efficiency
Highly efficient, tried-and-tested burner technology. Heat recovery through use of waste heat from the engine. Environmentally-friendly operation and low operating costs thanks to Kärcher's eco!efficiency mode.
 HDS 9/50 De Tr1: Easy operation
Easy operation
The machine is easy to operate using a central selector switch. Easy to set up and dismantle thanks to two optional hose reels in the control area. Safe storage thanks to the ample storage options for protective gear, accessories and cleaning agents.
 HDS 9/50 De Tr1: Self-sufficient application
Self-sufficient application
Large 500-litre water tank for cleaning applications of up to 30 minutes at full water power. With 100-litre diesel tank: ideal for long periods of use. Powerful Yanmar diesel engines allow the machine to be used independently of any power source.
High flexibility
  • Thanks to its configurability, each trailer can be custom-made according to customer requests.
  • Available as Skid or Cab variant for mobile application as a trailer or as a stationary solution.
Ease of servicing
  • A large hood enables service staff to access the internal components more easily.
  • Sophisticated service software for rapid fault diagnosis during servicing.
  • Tried-and-tested high-quality Kärcher components guarantee a long lifetime.
  • Includes: Water softening system to protect the heating coil against calcification.
  • Numerous safety functions protect the HDS trailer against damage in the case of an error.
  • Integrated frost protection mode to protect all components in cold exterior temperatures.

Technical data

Drive type Diesel
Motor manufacturer Yanmar
Flow rate (l/h) 500 - 900
Pressure (bar/MPa) 150 - 500 / 15 - 50
Consumption of heating oil in eco!efficiency mode (kg/h) 7,5
Dimensions (L × W × H) (mm) 3646 x 1747 x 1735


  • Spray gun, Industry
  • High-pressure hose, 30 m
  • Spray lance, 700 mm
  • Power nozzle
  • Pressure adjustment over speed regulation
 HDS 9/50 De Tr1
 HDS 9/50 De Tr1
 HDS 9/50 De Tr1
 HDS 9/50 De Tr1
Application areas
  • Municipal (cleaning public open spaces, traffic routes, removing graffiti and chewing gum)
  • Construction (cleaning construction machines, scaffolding, casing, equipment)
  • Industrial cleaning (removing paint and coatings, cleaning machines, parts and equipment)
Cleaning agents