Karcher HD 8/18-4 St H 240Bar Stationary Cold Water Pressure Washer 1.524-966.0

The Kärcher HD 8/18-4 ST-H is a powerful stationary cold water pressure washer designed specifically for operation with a hot water inlet supply of up to 85°C. Engineered for permanent installation in industrial, food processing, agricultural, and commercial environments, this high-performance system combines exceptional cleaning power, industrial durability, and advanced safety features for continuous professional use.

Designed for Hot Water Supply Applications

Unlike standard stationary pressure washers, the HD 8/18-4 ST-H is specifically built to operate with a pre-heated water supply of up to 85°C. This makes it an ideal solution for facilities with central hot water systems, allowing users to achieve improved grease and oil removal without requiring an integrated burner unit.

Powerful Cleaning Performance

Delivering up to 180 bar operating pressure and a water flow rate of up to 800 l/h, the HD 8/18-4 ST-H provides excellent cleaning power for machinery, vehicles, production equipment, livestock facilities, and industrial workspaces. The combination of high pressure and hot water significantly improves cleaning efficiency and reduces detergent consumption.

Heavy-Duty Crankshaft Pump Technology

At the heart of the machine is Kärcher’s proven crankshaft pump with ceramic pistons and brass cylinder head, designed for maximum reliability under demanding operating conditions. This professional-grade pump system delivers exceptional durability and long service life during continuous operation.

Durable 4-Pole Water-Cooled Motor

The machine is equipped with a slow-running 4-pole water-cooled electric motor, providing reduced wear, quieter operation, and improved efficiency compared to high-speed motor designs. This robust drive system is engineered for intensive daily use.

Built for Continuous Industrial Operation

The HD 8/18-4 ST-H is designed for fixed installations where reliable cleaning performance is required throughout the working day. An integrated water storage tank with float valve helps protect the pump against fluctuations in water supply, while dry-running protection safeguards critical components.

Advanced Electronic Monitoring

Integrated safety systems continuously monitor machine operation and provide protection against:

• Water shortage
• Dry running
• Phase failure
• Overvoltage
• Undervoltage
• Internal leakage detection

These systems help maximise uptime while reducing maintenance requirements.

Robust Industrial Construction

A heavy-duty powder-coated steel housing and frame provide outstanding protection in harsh industrial and agricultural environments. The rugged construction ensures long-term reliability even under demanding operating conditions.

Flexible Installation & System Integration

The HD 8/18-4 ST-H can be integrated into larger cleaning systems and is prepared for a range of optional upgrades, including:

• Remote control systems
• Operating hour counters
• Pressure gauges
• Automatic pressure relief systems
• Additional detergent dosing equipment

This flexibility makes it suitable for bespoke cleaning installations across a wide range of industries.

Integrated Detergent Dosing System

A built-in detergent intake system with dosing valve and level monitoring allows accurate application of cleaning chemicals when required, helping improve cleaning performance while reducing waste.

Key Features

• Genuine Kärcher part: 1.524-966.0
• 180 bar operating pressure
• Max pressure: 270 bar
• Water flow rate: 400–800 l/h
• Designed for hot water inlet temperatures up to 85°C
• Stationary cold water pressure washer for hot water supply systems
• Durable crankshaft pump with ceramic pistons
• 4-pole low-speed water-cooled motor
• Integrated water storage tank with float valve
• Dry-running protection system
• Powder-coated industrial steel housing
• Integrated detergent dosing system
• Advanced electronic monitoring and fault protection
• Prepared for remote operation and system integration
• Power supply: 400V 3-phase

Ideal For

• Food processing facilities
• Agricultural and livestock operations
• Industrial manufacturing plants
• Vehicle wash bays
• Workshops and maintenance depots
• Facilities with central hot water systems