Karcher HD 4/9 P Professional Pressure Washer 120 Bar
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Karcher HD 4/9 P Professional Pressure Washer 120 Bar
The Kärcher HD 4/9 P is a compact 110V professional pressure washer designed specifically for construction sites and mobile applications. Delivering up to 120 bar maximum pressure and a flow rate of 390 litres per hour, this portable unit combines professional-grade cleaning performance with exceptional manoeuvrability, making it ideal for builders, tradespeople and contractors working in demanding environments.
Weighing just 21.6kg, the HD 4/9 P offers outstanding portability enhanced by an extendable push handle, integrated carrying handle and large, sturdy wheels. Its unique dual-orientation design allows both vertical and horizontal operation, enabling secure positioning on narrow scaffolding platforms or uneven ground. This versatility makes it particularly effective for cleaning in awkward or hard-to-reach locations where larger machines cannot access.
Built for long-term reliability, the pressure washer features high-quality components including a robust 3-piston axial pump with brass cylinder heads, a heavy-duty anti-twist hose and an extremely durable outer casing. Kärcher's innovative automatic pressure relief system reduces strain on internal mechanisms, ensuring consistent performance day after day on busy construction sites. The EASY!Force trigger gun reduces operator fatigue during extended use, whilst the EASY!Lock quick connection system allows fast accessory changes to suit different cleaning tasks.
Suitable applications include façade cleaning, construction site maintenance, floor and wall preparation, vehicle and heavy machinery cleaning, and general external area cleaning where professional results are essential.
Features and Benefits:
• EASY!Force trigger reduces user fatigue during extended cleaning operations
• EASY!Lock quick connection system for fast accessory changes
• Compact and lightweight 21.6kg design for excellent portability
• Dual-orientation operation (vertical or horizontal) for flexible positioning
• High-quality brass cylinder head for extended service life
• Onboard accessory storage keeps essential components to hand
• 110V operation makes it ideal for construction site work
• Automatic pressure relief system protects internal components
Specifications:
Voltage: 110V
Cable Length: 5m
Hose Length: 10m
Flow Rate: 390 l/h
Working Pressure: 90 bar
Max Pressure: 120 bar
Power Rating: 1.4kW
Weight: 21.6kg
Dimensions (L x W x H): 351mm x 312mm x 904mm
Contents:
HD 4/9 P Pressure Washer
EASY!Force Trigger Gun
10m High Pressure Hose
840mm Spray Lance
Pressure Washer Help
To help determine the type of pressure washer required it is important to consider the size of your cleaning task and level of duty, i.e. how big is the cleaning object and how often will you need to clean it? Below is an explanation of the two main types of pressure washer. Whilst bar pressure is important the overriding factor in cleaning power is the water flow rate. More water = better cleaning.
Jargon Buster:
• Bar or PSI: Bar is the most common measure of pressure. PSI = bar x 14.5.
• Bar (max): This is the pressure achieved when the machine is first turned on
• Bar (rated) pressure: This is the operating water pressure of the machine.
• Motor size (kW): Motor size indicates power providing the machine runs efficiently.
• Flow Rate (l/h): Higher flow rates enable you to clean large areas or objects faster
Did You Know:
Pressure Washers use up to 80% less water than garden hosepipes.
Pressure Washers are not subject to hosepipe bans if used for safety reasons, or if a suction hose is used to pull water from a harvested source. i.e. not the water mains. They are also not subject to a ban if used for commercial reasons, for example to maintain cleanliness, hygiene or company image.
Important things to remember when using your pressure washer:
• Always use an RCD when using electrical products in connection with water.
• Never use a non-return valve at the pressure washer connection to a hose pipe.
• Never drive over or lay items on high pressure hoses to avoid damage.
• Your water supply hose should be a min of several meters long and unwound from its reel.
• If you are using an extension lead, check that it is rated at min of 13 amps and fully unwound from its reel.
Specifications
More Help
If you require more information or assistance with this product please consult the links below :
There is a Karcher Pro manufacturer warranty for this product which covers all manufacturing defects for the normal lifetime of the tool but does not cover wear and tear or damaged cause by misuse. This does not affect your statutory rights. For more details see <a href='/karcher-professional-warranty/warranty/126/' style='margin: 0; padding: 0;'><strong>Karcher Professional Warranty</strong></a>.