Karcher HDS 10/21-4 Classic 3045 PSI - 16.7L/min Hot Water Pressure Cleaner

Pressure Rating (PSI / Bar):
210 Bar (3,045 PSI) working pressure
235 Bar (3,408 PSI) maximum pressure

Flow Rate (L/min):
5.8 – 16.7 L/min (350 – 1000 L/h)

Power Type:
Electric – 3 Phase, 400V, 8 kW (50 Hz)

Water Temperature:
Hot water – maximum 80°C (inlet 12°C)

Motor Brand and Type:
4-pole, water-cooled electric motor

Pump Type:
High-quality crankshaft pump with water fine filter protection

Included Accessories:
10 m high-pressure hose
Classic hot water trigger gun
1050 mm spray lance
Power nozzle

Application Suitability:
Built for heavy-duty industrial and commercial use, particularly in construction, agriculture, transport, and automotive environments. Ideal for removing grease, oil, and stubborn dirt where high pressure and flow are required.

Duty Cycle / Usage Class (Light, medium, or heavy-duty use):
Heavy-duty professional use

Mounting / Portability:
Puncture-proof, large wheels and crane hook for safe and easy transport. Open tubular steel frame provides durability and easy access to internal components for maintenance.

Dimensions (L x W x H) (Millimetre):
1075 x 722 x 892 mm

Weight (kg):
128 kg (with accessories)
138 kg (incl. packaging)

Safety Features:
Pressure switch-off system
Thermo and safety valve
Integrated water filter to protect the pump
Fuel shortage and water safeguard
SDS system for vibration dampening
Eco!efficiency mode for reduced fuel consumption and optimised burner performance

Warranty & Service Support:

2 Years (Plus 2 Years when registered online)

The HDS 10/21-4 Classic combines Kärcher’s renowned durability with a simple, rugged design for the toughest cleaning environments. With a working pressure of 210 Bar and a flow rate of up to 1000 L/h, it offers reliable cleaning performance for construction sites, farms, and transport depots.

A robust crankshaft pump and 4-pole water-cooled electric motor provide long-lasting operation, while the tubular steel frame gives the machine excellent durability. Its eco!efficiency mode allows operation in the economical temperature range of 60°C with full flow, reducing fuel consumption without compromising cleaning performance.

The large puncture-proof wheels, crane hook, and compact footprint make it easy to move and transport on uneven worksites. Maintenance is simplified with an open-frame design and easily accessible components.

Backed by Kärcher’s global reputation, this model provides an excellent price-to-performance ratio for professionals who need consistent hot water cleaning power in harsh environments.