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Karcher 6/15 M St High Pressure Washer


The compact Karcher 6/15 M St High Pressure Washer motor/pump unit designed for stationary use, with AC motor, wall mount, 600 litres per hour flow rate and automatic pressure relief.


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The newly developed 3-piston axial pump with hardened stainless steel pistons is the core of the powerful Karcher 6/15 M St High Pressure Washer motor/pump unit with AC motor. It provides up to 20% higher energy efficiency and cleaning performance, guarantees a long service life and effortlessly ensures a working pressure of 150 bar. In order to protect the pump, a water fine filter is integrated which reliably removes dirt particles from the reclaim water. The automatic pressure relief feature also protects the pump and other high-pressure components from possible loads in stand-by operation. In addition, the middle-class machine has an extremely service- and user-friendly design, which means that all important components can be easily accessed. Whether it is used in a vertical or horizontal position: a clever 3-point support on the back of the machine ensures easy vertical mounting on walls (or horizontally as a built-in machine).


Technical data

Current type (Ph/V/Hz) 1 / 230 / 50
Flow rate (l/h) 560
Working pressure (bar/MPa) 150 / 15
Max. pressure (bar/MPa) 225 / 22,5
Connection load (kW) 3,1
Power cable (m) 5
Weight (kg) 20,5
Dimensions (L × W × H) (mm) 290 x 300 x 565


  • Pressure cut-off

Features & Benefits

High-quality equipment
  • Automatic pressure relief for protecting the components extends their service life.
  • Powerful, 2-pole, air-cooled electric motor.
  • High-quality brass cylinder head.
Flexible operation
  • Designed for upright and horizontal operation.
Prepared for stationary operation
  • Simple and robust 3-point attachment for wall mounting on the rear of unit.
  • Space-saving, compact design.
  • Integrated storage options reduce the set-up times.
Easy servicing
  • Easy access to the cylinder head when bottom of machine is opened.
  • Fast access to electrical box through simple removal of cover.
  • Large, easy-to-reach water fine filter for protecting the pump against dirt particles in the water.
Increased energy efficiency
  • Newly developed 3-piston axial pump with considerably reduced flow and pressure losses.
  • 20 percent increase in cleaning performance and energy efficiency.

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