Karcher HD 6/15-4 M ST Classic

Pressure Rating (PSI / Bar):
2,175 PSI (150 Bar) operating pressure
2,755 PSI (190 Bar) maximum pressure

Flow Rate (L/min):
7.5 – 10 L/min (450 – 600 L/h)

Power Type:
Electric – 1 Phase / 220–240 V / 50 Hz
3.4 kW

Water Temperature:
Cold water
Maximum inlet temperature: 60°C

Motor Brand and Type:
4-pole low-speed electric motor
Reduced motor speed for quieter operation and reduced pump wear

Pump Type:
Heavy-duty crankshaft pump with brass cylinder head

Included Accessories:
10 m high-pressure hose (DN6, rated to 250 Bar)
Standard trigger gun
840 mm spray lance
Power nozzle

Application Suitability:
Suitable for stationary installation in vehicle wash bays, food processing facilities, chemical plants, manufacturing, transport and logistics, agriculture, construction, and municipal applications where a permanent pressure cleaning solution is required.

Duty Cycle / Usage Class:
Heavy-duty commercial and industrial use

Mounting / Portability:
Stationary chassis design
Integrated accessory storage
Compact footprint for permanent installation

Dimensions (L x W x H) (Millimetre):
698 x 410 x 498 mm

Weight (kg):
48.3 kg (with accessories)

Safety Features:
Pressure cut-off system
Infinitely variable pressure and water flow adjustment
Large integrated water filter to protect the pump from contamination
Low-vibration operation for increased component life

Additional Features:
Robust stationary chassis construction
Integrated accessory storage
Crankshaft pump with brass cylinder head for long service life
Water suction capability
Classic accessories with EASY!Lock connections for fast accessory changes and secure connections

Warranty & Service Support:
2 Years

The Kärcher HD 6/15-4 M ST Classic is a compact stationary cold water pressure cleaner designed for permanent installation in commercial and industrial environments. Delivering up to 2,175 PSI operating pressure with a flow rate of 10 L/min, it provides reliable cleaning performance across a wide range of applications.

Powered by a quiet, low-speed 4-pole electric motor, the machine features a heavy-duty crankshaft pump with a brass cylinder head, offering excellent durability, high efficiency, and low maintenance costs. The pump is capable of drawing water up to 60°C, making it suitable for demanding industrial cleaning tasks.

Designed with ease of use in mind, the HD 6/15-4 M ST Classic includes pressure cut-off, variable pressure and flow adjustment, EASY!Lock accessories, and a large integrated water filter to maximise pump life. Its robust stationary chassis and compact footprint make it an excellent choice for wash bays, factories, food processing facilities, transport depots, and other fixed cleaning installations.