Kärcher HD 8/18-4 M St

Kärcher HD 8/18-4 M St

HD 8/18-4 M PU middle-class pump unit with robust 3-piston axial pump with brass cylinder head and 4-pole slow-running three-phase motor. Suitable for horizontal and vertical operation.


Our powerful HD 8/18-4 M PU motor/pump unit with robust 3-piston axial pump and brass cylinder head, 4-pole slow-running three-phase motor and pressure switch control impresses with up to 20% higher energy efficiency and cleaning performance. The stationary middle-class machine is designed both for vertical and horizontal use. The 3-point support on the back of the machine enables vertical wall mounting as well as horizontal installation. Easy access to the high-pressure pump, which is protected by a large water filter, and to the electronic components, is proof of the extremely maintenance-friendly machine design. Using the Servo Control function, the water volume and working pressure can be varied by selecting the corresponding nozzles. All high-pressure components are protected from loads in stand-by operation by the reliable automatic pressure relief feature.

Technical data

Current type (Ph/V/Hz) 3 / 400 / 50
Flow rate (l/h) 460 – 900
Working pressure (bar/MPa) 40 / 200 / 4 / 20
Max. pressure (bar/MPa) 220 / 22
Connection load (kW) 7
Weight (kg) 54.2
Dimensions (L × W × H) (mm) 554 x 425 x 1000


  • Cleaning agent function, 2 x 2.5 L
  • Spray gun, EASY!Force
  • High-pressure hose, 10 m
  • Spray lance, 1050 mm
  • Triple nozzle (0°/25°/40°), Manual
  • ANTI!Twist
  • Pressure cut-off
  • Servo Control
You've just added this product to the cart: