Pressure washer Karcher HD 7/17 M St — 170 bar, 750 l/h

The Karcher HD 7/17 M St is a professional cold-water pressure washer delivering up to 170 bar of maximum pressure and a water flow of 750 l/h. Designed for industrial and commercial use, this machine provides concentrated jet performance to remove stubborn dirt, grease and grime from a wide range of surfaces. Its robust construction and components are intended to withstand intensive daily operation in workshops, construction sites and vehicle-maintenance facilities.

Advantages

This pressure washer combines high pressure and high flow to speed up cleaning cycles while reducing the need for repeated passes. The unit’s durable pump and corrosion-resistant materials ensure long service life under heavy use. Integrated safety features and stable chassis design provide reliable operation and easier handling during continuous work. The machine supports a variety of lance and nozzle options to adapt jet width and intensity for different cleaning tasks.

Suitable for

• Cleaning workshop floors, machine tools and workbenches
• Removing grease and oil from engines and undercarriages
• Site cleanup on construction projects and equipment washing
• Fleet maintenance for trucks, vans and heavy vehicles
• Industrial surface preparation prior to painting or coating

Key specifications

• Maximum pressure: 170 bar
• Water flow: 750 litres per hour
• Cold-water operation suitable for non-thermal cleaning
• Professional-grade pump designed for continuous use
• Stable, serviceable chassis for industrial environments
• Compatibility with various high-pressure lances and nozzles

How to use

Connect the pressure washer to a suitable water supply and an appropriate power source according to local electrical standards. Fit the required lance and nozzle for the cleaning task, then open the water supply and switch on the unit. Start cleaning at a moderate distance from the surface and adjust the nozzle or change to a lower-pressure setting if surface damage or material removal occurs. For stubborn contamination, use suitable cleaning agents compatible with cold-water pressure washing and follow the agent manufacturer’s instructions for dilution and contact time.

Usage recommendations

For safe and effective operation, wear appropriate personal protective equipment including eye protection and non-slip footwear. Avoid directing the high-pressure jet at people, animals, electrical installations or delicate surfaces. When cleaning painted or sensitive surfaces, test on a small hidden area first and use a wider-spray nozzle or increased distance to reduce jet intensity. Regularly inspect hoses, fittings and the pump for wear and perform scheduled maintenance to preserve performance and extend service life.