The Karcher HD 9/20-4 Classic Cold Water Pressure Cleaner is the top-performing unit in the HD Classic series, engineered for heavy-duty, continuous industrial cleaning. Running on three-phase power, it delivers an impressive 900 l/h water flow rate and a working pressure of 70–200 bar, making it ideal for construction sites, workshops, agriculture, transport fleets, and industrial facilities. Built for durability, this machine features extra-large crankshafts, robust ball bearings, ceramic pistons, and high-performance sealing systems that dramatically reduce wear and extend service life. Its compact dimensions, low weight, onboard accessory storage, and foldable push handle ensure excellent mobility and easy handling. Thanks to Karcher’s Power Flat Jet Nozzles, the HD 9/20-4 Classic achieves up to 40% more impact force than conventional nozzles — cutting cleaning time and increasing efficiency. With wide access to internal components and an integrated fine water filter, maintenance is quick, simple, and cost-effective.

• High Performance: 900 l/h flow rate with powerful 70u2013200 bar working pressure
• Industrial Durability: Extra-large crankshafts, ceramic pistons & heavy-duty bearings
• Advanced Sealing System: Reduces wear, prolongs life & ensures reliable performance
• Efficient Cleaning: Karcher Power Flat Jet nozzles deliver up to 40% more impact force
• Easy Maintenance: Wide-opening cover & large fine water filter for pump protection
• Excellent Mobility: Large wheels, ergonomic handle & foldable push bar
• Onboard Storage: Integrated holders for lance, nozzles & accessories
• Compact & User-Friendly: Intuitive controls and lightweight design for easy operation