








The HD 9/20-4 S cold water high-pressure cleaner is ideal for daily use in harsh conditions. The best materials guarantee the highest quality —— you can rely on both from Kärcher. Inside the machine, a wear-resistant wobble pump with stainless steel pistons and a brass cylinder head ensures powerful performance, complemented by a 4-pole low-speed motor with an air-water cooling system. An integrated aluminum frame bracket reduces weight and provides a lightweight and wear-resistant chassis suitable for crane loading. For a compact design and maximum portability, the motor and pump unit is installed vertically in an upright arrangement. In addition to this, it features accessory storage in the form of a storage compartment and an adjustable hook. The HD 9/20-4 S takes ergonomic working to a new level. Thanks to theEASY!Force advanced trigger gun, it can be operated effortlessly without any holding force, with the help of the rotating 1050 mm stainless steel spray lance. The Servo Control controller, located between the trigger gun and the spray lance, can be used to regulate pressure and water volume.
| Power supply (Ph/V/ Hz) | 3 / 376 - 424 / 50 |
| Flow rate (l/h) | 500 - 900 |
| Inlet temperature (°C) | 60 |
| Operating pressure (bar) | 50 - 200 |
| Max. pressure (bar) | 250 |
| Connected load (kW) | 7 |
| Power cable (m) | 5 |
| Nozzle size | 047 |
| Intake connection | 1″ |
| Weight (with accessories) (kg) | 59,9 |
| Weight incl. packaging (kg) | 69 |
| Dimensions (L x W x H) (mm) | 607 x 518 x 1063 |