Karcher HDS 10/21-4 M Hot Water High Pressure Cleaner
The Karcher HDS 10/21-4 M is one of the most powerful and reliable three-phase hot water high-pressure cleaners in the Karcher Middle Class range. Engineered with a slow-running 4-pole water-cooled motor and a robust 3-piston axial pump with ceramic pistons, it generates a fierce 210 bar (3045 PSI) of working pressure and a high-impact 1000 litres per hour water flow to dissolve away industrial grime.
Ideal For:
- Commercial Wash Bays: Deep-cleaning heavy-duty transportation trucks, buses, and trailers daily.
- Mining & Earthmoving: Stripping built-up grease, bitumen, and heavy clay from industrial plant machinery.
- Large Agricultural Estates: Sanitising livestock enclosures, grain infrastructure, and large harvesters.
- Public Sector & Municipalities: Removing stubborn graffiti, oil stains, and deep-seated grime from public brickwork or infrastructure.
Karcher HDS 10/21-4 M Hot Water High Pressure Cleaner Features
- Powerful Commercial Cleaning Performance – With operating pressure up to 210 bar and water flow rates reaching 1000 L/h, the HDS 10/21-4 M rapidly removes grease, oil, mud and stubborn grime from vehicles, machinery and industrial surfaces. The high water flow improves cleaning speed and productivity on large commercial jobs.
- Advanced Hot Water Technology – The highly efficient burner system and stainless steel heating coil provide hot water temperatures up to 155°C for superior grease-cutting capability. Hot water cleaning reduces detergent usage while improving overall cleaning effectiveness and hygiene.
- Maximum Efficiency with eco!efficiency Mode – Kärcher’s eco!efficiency setting allows the machine to operate at the most economical temperature range while maintaining full water flow. Burner cycles are optimised to reduce fuel consumption by up to 20% compared with full-load operation, helping lower running costs in high-usage environments.
- Heavy-Duty Industrial Reliability – Designed for harsh Australian operating conditions, the HDS 10/21-4 M features a low-speed water-cooled 4-pole electric motor and robust 3-piston axial pump with ceramic pistons for long service life and dependable performance.
- Operator Comfort & Ergonomics – The EASY!Force Advanced trigger gun uses recoil force assistance to minimise operator fatigue during long cleaning sessions. Servo Control allows pressure and water volume adjustments directly at the spray gun for greater efficiency and convenience.
- Enhanced Safety & Equipment Protection – Integrated safety systems including the Soft Damping System (SDS), dry-running protection and water filtration help protect internal components from vibration, pressure spikes and contamination, improving machine longevity and reliability.
- Practical Mobility & Accessory Storage – The ergonomic “jogger” chassis design with large rubber wheels and steering roller improves manoeuvrability across industrial worksites. Integrated storage keeps accessories, hoses and detergents organised and easily accessible.
