Kärcher High Pressure Washer HDS 10/21 -4 pcs EU-I
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Excellence under pressure: The HDS 10/21-4 St stationary hot water cleaner with oil boiler is designed for continuous use in tough applications and cleans with a pressure of up to 210 bar.
The HDS 10/21-4 St is a stationary hot water cleaner with oil boiler that delivers extra high pressure: up to 210 bar makes even the most stubborn dirt easy to remove. The 4-pole, low-speed electric motor generates high power for demanding continuous use. The robust crankshaft pump with bronze cylinder head delivers up to 1000 liters of water per hour. The water tank has built-in limescale protection and a water filter to protect the pump. The detergent is taken up and dosed precisely via a valve, and an indicator shows when the detergent is running low. Electronic monitoring of the oil boiler and the overall technology ensures high operational reliability. An intuitive rotary switch or optional remote control makes operation simple, and service and maintenance work is also user-friendly. With a wide range of accessories available, the HDS 10/21-4 St can be adapted to suit a wide range of cleaning tasks. The machine can be supplemented with a pressure gauge and hour meter, a second detergent dosing unit and a pressure relief system.
Features and benefits
High-performance crankshaft pump
- Robust crankshaft pump with brass cylinder head and high-quality materials ensure a long service life
- Extremely robust and with a very long service life
- Longer life, less maintenance and lower costs. Perfect for industrial use.
Water-cooled 4-pole electric motor (oil)
- Water-cooled engine for high performance and durability.
- 4-pole, low-speed electric motor guarantees long working life.
- For high level of performance with low maintenance costs.
Efficient burner technology
- High-performance burner with upright heating coil and constant ignition without explosive combustion.
- With proven and efficient burner technology from Kärcher for low fuel consumption.
Electronic monitoring for increased operational reliability.
- Disconnection in case of leakage or phase failure.
- Automatic undervoltage and overvoltage protection.
- Automatic burner stop at low water level, overheating protection.
High quality equipment
- Chemical inlet system with dosing valve and empty indicator included as standard
Easy and convenient use
- One control for all functions. Easy to learn and use.
- Particularly user-friendly thanks to self-explanatory symbols. No need for time-consuming learning
Simple maintenance and easy to service
- Easy accessibility for all service and maintenance tasks
- Extensive service network with highly trained technicians
Very flexible
- Can be controlled with remote control as an option.
Specifications
Technical data
| Mains voltage (Ph/V/ Hz ) | 3 / 400 / 50 |
| Flow rate (l/h) | 500 - 1000 |
| Working pressure (bar) | 210 |
| Max pressure (bar) | 235 |
| Temperature (input 12° C) (°C) | Max. 80 |
| Inlet temperature (°C) | Max. 30 |
| Power (kW) | 8 |
| Fuel oil consumption, full load (kg/h) | 6.5 |
| Power cable (m) | 5 |
| Water supply | 1″ |
| number of simultaneous users | 1 |
| Mobile | Stationary |
| Protection (A) | 25 |
| Weight (with accessories) (kg) | 160 |
| Weight incl. packaging (kg) | 170 |
| Dimensions (L × W × H) (mm) | 1142 x 578 x 790 |
The following is included
- Flame monitoring
- Prepared for Servo Control
- Prepared for remote control
- Power nozzle
- Detergent function: Suction
Standard equipment
- Oil dipstick
- Oil level gauge
- Prepared for chemical inlet
- RM1 dosage
- Dry running protection
- Large water filter
- Water tank with float valve
- Crankshaft pump with ceramic pistons
- Water-cooled engine






Areas of use
- Suitable for cleaning machines and vehicles.
- Ideal for various needs in the transport and logistics sector
- Agriculture
- Suitable for use in production halls, warehouses, logistics buildings and heavy industry facilities
- Versatile applications in industrial environments, e.g. for cleaning production facilities
- Building contractors
- Perfect for car dealerships, car rental companies and gas stations
- Cleaning of tractors, machinery and accessories in agriculture



