Karcher HD 10/21-4 ST Pressure Washer | 1.524-963.0

High-performance stationary cold water cleaning for continuous professional use

The Karcher HD 10/21-4 ST Pressure Washer – also known as Kärcher HD10/21-4 ST, Karcher HD1021-4 ST and Karcher HD 10-21 4 ST – is a powerful stationary cold water unit designed for permanent installation in industrial, agricultural and commercial environments. Built for longevity, consistency and high-demand workflows, it delivers reliable cleaning power from a secure fixed position.

Offering up to 210 bar of pressure, the Karcher HD 10/21-4 ST Pressure Washer provides strong, efficient cleaning performance for machinery, vehicles, wash bays, production areas and industrial workspaces. The durable 4-pole low-speed motor ensures reduced wear, quieter operation and excellent service life under continuous daily use.

As a permanently installed system, the Karcher HD 10/21-4 ST supports streamlined cleaning processes, centralised control layouts and secure positioning away from high-traffic zones. It is ideal for facilities seeking an organised, reliable and low-maintenance cleaning solution that integrates neatly with fixed wash bay setups and remote operation systems.

Why should I buy a Karcher HD 10/21-4 ST Pressure Washer?

If you require a powerful, robust and permanently installed cold water cleaning solution, the Karcher HD 10/21-4 ST delivers long-term reliability, consistent high pressure and the efficiency benefits of a fully stationary system designed for demanding professional environments.

Product Key Features

• Stationary installation – ideal for fixed wash bays, workshops and industrial cleaning facilities.
• 210 bar working pressure – strong performance for vehicles, equipment and heavily soiled surfaces.
• 4-pole low-speed motor – delivers long service life, reduced noise and dependable daily operation.
• Secure fixed mounting – prevents unauthorised access and keeps the workspace organised.
• Supports remote operation – integrates easily into centralised cleaning layouts and multi-operator systems.
• EASY!Force and EASY!Lock – reduces operator fatigue and allows quick, tool-free accessory changes.
• Detergent application capable – enables detergent suction for improved cleaning performance when required.

Accessories Included