HD 9/20-4 Classic Professional High Pressure Washer
The HD 9/20-4 Classic high-pressure cleaner is the most high-performance model in the HD Classic range. The machine operates with three-phase current, features an impressive 900 l/h water flow, and is synonymous with high durability. All components are designed for continuous use. The intuitive operation, compact dimensions and low weight guarantee comfortable handling. The high-pressure cleaner offers ample on-board storage for the nozzle, lance and other accessories. The HD 9/20-4 Classic is also impressive in terms of efficiency: reduced cleaning times ensure a plus for profit. Service-friendliness is an additional bonus. The machine features easy access to all relevant machines parts.
Feature and Benefits

Durable and robust
Practical cable storage. The cable is integrated directly on the machine, meaning it is always secure during transit.

Especially easy to maintain
Wide-opening machine cover for easy access to all service and maintenance-relevant components. Large water fine filter for protecting the pump. Integrated nozzle storage.

Improved cleaning performance
Patented Karcher power flat jet nozzles: up to 40 percent more impact force than conventional nozzles. High area coverage and thorough dirt removal.
Specifications
Technical data
| Supply voltage (Ph/V/Hz) | 3 / 400 / 50 |
| Flow rate (l/h) | 520 - 900 |
| Inlet temperature (°C) | 60 |
| Working pressure (bar/MPa) | 70 - 200 / 7 - 20 |
| Max. pressure (bar) | 240 |
| Connection load (kW) | 6.9 |
| Weight (with accessories) (kg) | 56 |
| Dimensions (L x W x H) (mm) | 709 x 469 x 1000 |
Equipment
- Spray gun, Standard
- High-pressure hose, 10 m, ID 8, 315 bar
- Stainless steel spray lance, 600 mm
- Power nozzle
- Anti-twist system
- Pressure switch-off
- Crankshaft pump with ceramic pistons










































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