The HD 9/20-4 S Classic cold water high-pressure cleaner delivers high power and Super Class quality – its ergonomic design makes it the ideal tool for daily use.
















The HD 9/20-4 S cold water high-pressure cleaner is ideal for daily use in tough conditions. The finest materials guarantee top quality – and you can count on both from Kärcher. Inside the machine, a hard-wearing wobble pump with stainless steel pistons and a brass cylinder head delivers powerful performance, complemented by a 4-pole low-speed motor with air-water cooling system. Integrated aluminium frame carriers reduce the weight and provide a light yet hard-wearing chassis, suitable for crane loading. For a compact design and maximum portability, the motor and pump unit is mounted vertically in an upright arrangement. In addition to this, it features accessory storage in the form of a stowage compartment and adjustable hooks. The HD 9/20-4 S takes ergonomic working to the next level. Thanks to the EASY!Force Advanced trigger gun, it can be operated effortlessly without any holding force, ably assisted by a rotating 1050-millimetre stainless steel lance. The Servo Control controller positioned between the trigger gun and lance can be used to adjust pressure and water volume.
Small footprint and space-saving proportions. Easy to manoeuvre and transport. Maximum stability ensures a stable footing for the machine.
Long service life and low maintenance costs. High performance and high efficiency. With suction feature and up to 60 °C water temperature.
Swivelling pump head. Convenient oil fill level display and oil drain hole integrated in the chassis. Modular construction, comprising pump, motor and control cabinet.
| Feature | Specification |
| 3 / 376 - 424 / 50 | Power supply (Ph/V/Hz) |
| 500 - 900 | Flow rate (l/h) |
| 60 | Inlet temperature (°C) |
| 50 - 200 | Working pressure (bar) |
| 250 | Max. pressure (bar) |
| 7 | Connected load (kW) |
| 5 | Power cable (m) |
| 047 | Nozzle size |
| 1″ | Water inlet |
| anthracite | Colour |
| 62,4 | Weight (with accessories) (kg) |
| 70,7 | Weight incl. packaging (kg) |
| 607 x 518 x 1063 | Dimensions (L × W × H) (mm) |
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| 4 star | 0% | |
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