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Karcher HD 7/18-4 Classic High Pressure Washer


Reliable, low-maintenance, the Karcher HD 7/18-4 Classic three-phase high-pressure cleaner. With a powerful crankshaft pump, rugged ceramic piston, innovative sealing technology and a water flow of 700 l/h.


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The Karcher HD 7/18-4 Classic High Pressure Washer features a high-performance three-phase motor and completes all basic cleaning tasks with a 700 l/h water flow. High-quality components ensure maximum reliability and durability. The low-maintenance and service-friendly machine enables perfect access to all important components. The reduced cleaning times guarantee a high degree of profitability with perfect cleaning results. The machine features intuitive operation and is therefore particularly user-friendly. The compact dimensions and low weight also contribute to the simple handling of the high-pressure cleaner. Ample storage space is provided for the lance, nozzle and other accessories.



Technical data

Current type (Ph/V/Hz) 3 / 400 / 50
Flow rate (l/h) 520 – 700
Working pressure (bar/MPa) 70 – 180 / 7 – 18
Max. pressure (bar) 220
Connection load (kW) 4.9
Weight (kg) 56
Dimensions (L × W × H) (mm) 709 x 469 x 1000



  • Spray gun, standard
  • High-pressure hose, 10 m
  • Spray lance, 840 mm
  • Power nozzle
  • Anti-twist system (AVS)
  • Pressure cut-off
  • Crankshaft pump with ceramic pistons

Features & Benefits

Durable and robust

  • Extra large crankshafts and connecting rods with robust ball bearings. Ceramic pistons for reduced wear and tear. High performance sealing packages for longer working times.

Especially easy to maintain

  • Wide-opening machine cover for easy access to all service and maintenance-relevant components. Large water fine filter for optimal protection of the pump. Integrated nozzle storage.

Improved cleaning performance

  • Patented Kärcher power flat jet nozzles: up to 40 percent more impact force than conventional nozzles. High area coverage and thorough dirt removal.

Excellent mobility

  • Large wheels and ergonomic push handle ensure optimal turning manoeuvrability and easy handling.
    The foldable push handle enables space-saving storage.

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