High-pressure cleaner HD 9/20-4 S ST Classic
Stationary HD 9/20-4 S St Classic cold water high-pressure cleaner: Designed for commercial use with structured installation, operation, and maintenance.
Designed for stationary application: The HD 9/20-4 S St Classic cold water high-pressure cleaner from Kärcher delivers 7 kW of power, generates an operating pressure of up to 200 bar, and provides a flow rate of 900 l/h. The unit features an adjustable crankshaft pump as well as a low-speed, 4-pole motor with automatic shutdown and combined air/water cooling. An integrated water filter protects the pump against contamination. The standard scope of delivery includes a trigger gun, lance, 10-meter high-pressure hose, and power nozzle – each equipped with the EASY!Lock quick-release fastener. Service and maintenance points are directly accessible, and the steel frame can be mounted on walls or floors.
Features and benefits
Crankshaft pump with brass cylinder head and pistons with ceramic sleeves
High performance Long service life and low maintenance costs. With suction feature and up to 60 °C water temperature.
Sturdy, stationary design.
Tubular steel frame for machine protection during daily operation. Designed for continuous workflows in commercial and industrial operations. The sturdy pipe frame provides protection in continuous heavy-duty use.
Classic accessories with EASY!Lock connections
Robust accessories. Quick set-up and pack-up plus easy accessory replacement. Easy to useClear machine design
- Large water filter to protect the pump.
- Pressure and water flow can be adjusted on the pump itself.
- Filling level and quality of the oil can be checked easily using the inspection glass and dipstick.
4-pole low-speed motor with air-water cooling system, solid pump with stainless steel pistons and brass cylinder head
- Combines water cooling with an air cooling system for maximum cooling output even in fluctuating ambient temperatures and water temperatures.
- Built to last, high reliability.
- Tried-and-tested high-quality Kärcher components guarantee a long lifetime.
Structured control elements and service-friendly design.
- Integrated water filter can be removed and cleaned without any tools.
- Simple operation.
- Good accessibility for easy service and maintenance.
High flexibility
- The extensive accessory line provides for ergonomic and economical cleaning solutions for numerous applications.
- Extensive range of accessories for a wide range of applications.
- Minimum installation effort.
Specifications
Technical data
| Number of current phases (Ph) | 3 |
| Voltage (V) | 376 - 424 |
| Frequency (Hz) | 50 |
| Flow rate (l/h) | 450 - 900 |
| Inlet temperature (°C) | 60 |
| Working pressure (bar) | 50 - 200 |
| Max. pressure (bar) | 260 |
| Connected load (kW) | 7 |
| Power cable (m) | 5 |
| Nozzle size | 047 |
| Water inlet | 1″ |
| Colour | anthracite |
| Weight (with accessories) (kg) | 49,7 |
| Weight incl. packaging (kg) | 55,4 |
| Dimensions (L × W × H) (mm) | 720 x 522 x 418 |
Scope of supply
- High-pressure hose length: 10 m
- High-pressure hose specification: DN 8, 315 bar
- Spray lance: 840 mm
- Power nozzle
Equipment
- Crankshaft pump with ceramic pistons
- 4-pole three-phase motor with air and water cooling
- Pressure cut-off
- Integrated water fine filter
- Sight glass for oil level
- Brass water inlet
Application areas
- Cleaning animal stables in agriculture
- Ideal for car dealerships, car hire companies and service stations
- Vehicle and machine cleaning in the automotive, industrial and agricultural sectors
- Cleaning tractors, machines and implements in agriculture
- High-pressure cleaning of machines and equipment in the construction, agricultural and municipal sectors
- For cleaning production halls, warehouses and logistics halls, as well as loading areas
- Ideal for diverse applications in the transport and logistics sector
- Industry
- Agriculture
