Karcher HDS 13/20-4 S 2900 PSI Hot Water Pressure Cleaner

Pressure Rating (PSI / Bar):
200 Bar (2,900 PSI) working pressure
240 Bar (3,480 PSI) maximum pressure

Flow Rate (L/min):
10 – 21.7 L/min (600 – 1300 L/h)

Power Type:
Electric – 3 Phase, 420V, 9.5 kW (50 Hz)

Water Temperature:
Hot water – min 80°C, max 155°C (inlet 12°C)

Motor Brand and Type:
Low-speed, 4-pole, water-cooled electric motor

Pump Type:
Robust 3-piston axial pump with ceramic pistons

Included Accessories:
20 m Longlife high-pressure hose (DN 8, 400 Bar)
EASY!Force Advanced trigger gun
1050 mm spray lance with power nozzle
Servo Control for adjusting pressure and water volume
High-pressure spray lance

Application Suitability:
One of Kärcher’s most powerful hot water pressure cleaners, designed for industrial and commercial environments with the toughest cleaning requirements. Suitable for continuous use in construction, transport, and heavy industry.

Duty Cycle / Usage Class (Light, medium, or heavy-duty use):
Heavy-duty, continuous industrial use

Mounting / Portability:
Mobile “Jogger” chassis design with large rubber-tyred wheels, swivel castors, push handles, and integrated tilting aid for stairs and kerbs. Built-in storage for accessories, hoses, and tools.

Dimensions (L x W x H) (Millimetre):
1300 x 800 x 1140 mm

Weight (kg):
233.3 kg (with accessories)
243.1 kg (incl. packaging)

Safety Features:
Pressure switch-off
Dry-running protection
SDS system to absorb vibration and pressure surges
Stainless steel heating coil with corrosion protection
Eco!efficiency mode with optimised burner cycles for fuel savings
Two detergent tanks with easy-changeover system and rinse function
Large water filter for pump protection
Safety valve, water shortage safeguard, and flame monitoring
EASY!Lock quick-release system

Warranty & Service Support:
2 years (Plus 2 years when registered online)

The Karcher HDS 13/20-4 S Hot Water Pressure Cleaner is one of Karcher's most powerful Super Class machines, engineered for demanding commercial and industrial environments where high water flow, hot water performance and continuous-duty reliability are essential.

Delivering 2,900 PSI (200 Bar) working pressure, up to 3,480 PSI (240 Bar) maximum pressure, and an impressive water flow of up to 21.7 litres per minute (1,300 L/h), the HDS 13/20-4 S provides exceptional cleaning performance for heavy machinery, transport fleets, construction equipment and industrial facilities.

With hot water temperatures up to 155°C, a robust 3-piston axial pump with ceramic pistons and a low-speed water-cooled motor, this machine is built for professional users who need maximum cleaning capability in the toughest conditions.

High Flow Industrial Cleaning Performance

A major advantage of the HDS 13/20-4 S is its exceptional 21.7 L/min maximum water flow.

High pressure helps break contamination away from a surface, while high water flow rapidly carries loosened dirt, mud and debris away. This combination is particularly valuable when cleaning large machinery, trucks, earthmoving equipment and industrial surfaces.

With 2,900 PSI working pressure and up to 21.7 L/min flow, the HDS 13/20-4 S is designed for large-scale cleaning jobs where productivity and cleaning speed matter.

Its high flow capacity can also support two-lance operation, making it possible to increase productivity on suitable large cleaning applications.

Hot Water up to 155°C

The HDS 13/20-4 S provides hot water cleaning from 80°C up to 155°C, significantly improving performance against grease, oil and stubborn industrial contamination.

Heat helps loosen oily residues and can reduce the amount of detergent and physical cleaning time required compared with cold water cleaning alone.

This makes the machine particularly well suited to:

• Heavy machinery
• Earthmoving equipment
• Trucks and commercial fleets
• Industrial plant
• Engines and components
• Agricultural machinery
• Manufacturing equipment
• Grease and oil removal
• Heavily contaminated hard surfaces

For businesses dealing with substantial levels of industrial contamination, the combination of heat, high pressure and high water flow provides exceptional cleaning capability.

Heavy-Duty 4-Pole Water-Cooled Motor

The HDS 13/20-4 S is powered by a 9.5 kW, 4-pole low-speed water-cooled electric motor operating from a three-phase electrical supply.

The low-speed configuration is designed for demanding professional applications where long service life and dependable operation are critical.

Water cooling assists with temperature management during extended cleaning periods, making the machine particularly suitable for heavy-duty industrial workloads.

Robust 3-Piston Axial Pump

At the heart of the machine is a professional 3-piston axial high-pressure pump with ceramic pistons.

Ceramic pistons provide excellent resistance to wear under demanding operating conditions, while the large integrated water filter helps protect the pump from contamination entering through the water supply.

Karcher's SDS system further protects the high-pressure system by absorbing vibration and pressure surges during operation.

Eco!efficiency for Lower Operating Costs

Karcher's eco!efficiency mode optimises burner operation to reduce fuel consumption while maintaining effective hot water cleaning performance.

This allows professional operators to work within an economical temperature range when maximum heat is not required, helping reduce fuel usage, emissions and overall operating costs.

For businesses running hot water pressure cleaners frequently, improved burner efficiency can provide meaningful savings over the life of the machine.

EASY!Force Advanced and Servo Control

Operator comfort is a major feature of the HDS 13/20-4 S.

The EASY!Force Advanced trigger gun uses the recoil force generated by the high-pressure water jet to significantly reduce the holding force required during operation.

This helps reduce hand and arm fatigue during extended cleaning tasks.

Servo Control allows the operator to adjust water flow and pressure directly at the lance, making it easy to adapt the machine to different cleaning surfaces and contamination levels.

The EASY!Lock quick-release system also speeds up accessory changes while maintaining a secure professional connection.

Dual Detergent System

The HDS 13/20-4 S includes two integrated detergent tanks with an easy changeover system.

This allows operators to carry different cleaning chemicals and switch between them as required, improving versatility across industrial cleaning applications.

An integrated rinse function also makes it easier to flush the detergent system after use.

Professional Accessories Included

The Karcher HDS 13/20-4 S is supplied with:

• 20 m Longlife high-pressure hose, DN 8, rated to 400 Bar
• EASY!Force Advanced trigger gun
• 1050 mm high-pressure spray lance
• Power nozzle
• Servo Control
• EASY!Lock professional connections

The 20 metre Longlife hose provides excellent working range around trucks, machinery and large equipment without requiring constant repositioning of the machine.

Jogger Mobility System

Despite its substantial industrial construction, the HDS 13/20-4 S incorporates Karcher's Jogger mobility system to improve manoeuvrability.

Large rubber-tyred wheels, swivel castors, push handles and an integrated tilting aid help operators move the machine around workshops, yards and industrial facilities.

Built-in storage provides dedicated space for hoses, accessories and tools, helping keep everything organised during daily operation.

Comprehensive Safety and Equipment Protection

The HDS 13/20-4 S incorporates a comprehensive range of systems designed to protect the machine and major components during demanding use, including:

• Pressure switch-off
• Dry-running protection
• Safety valve
• Water shortage safeguard
• Flame monitoring
• SDS vibration and pressure surge damping
• Large water filter
• Stainless steel heating coil
• Corrosion protection
• Eco!efficiency burner control
• EASY!Lock professional connections

These features help maximise reliability and reduce the risk of downtime during intensive industrial cleaning.

Ideal Applications

The Karcher HDS 13/20-4 S is ideal for:

• Heavy machinery cleaning
• Earthmoving equipment
• Mining support operations
• Construction companies
• Truck and fleet washing
• Transport depots
• Agricultural machinery
• Manufacturing facilities
• Industrial plant maintenance
• Mechanical workshops
• Plant and equipment cleaning
• Commercial cleaning contractors
• Industrial wash bays
• Grease and oil removal
• Heavy mud removal

Its combination of 2,900 PSI pressure, 21.7 L/min flow and hot water up to 155°C makes it one of the most capable Karcher hot water pressure cleaners for demanding professional applications.

Why Buy From Hytec Services?

We proudly supply Karcher commercial and industrial pressure cleaners Australia-wide, with ongoing servicing, repairs and maintenance available throughout the Illawarra, South Coast, Southern Highlands, Macarthur, Southern Sydney and surrounding NSW regions. Backed by more than 40 years of industry experience, Hytec Services provides expert advice, genuine spare parts and dependable after-sales support to keep your equipment performing at its best.

As an experienced Karcher dealer and service agent, Hytec Services can assist with machine selection, accessories, spare parts, scheduled maintenance and repairs throughout the working life of your equipment.

For businesses requiring a premium high-flow industrial hot water pressure cleaner capable of tackling the toughest grease, mud and industrial contamination, the Karcher HDS 13/20-4 S delivers exceptional performance, operator comfort and long-term reliability.