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

Pressure Rating (PSI / Bar):
200 Bar (2,900 PSI) working pressure

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

Power Type:
Electric – 3 Phase, 400V, 9.5 kW (50 Hz)

Water Temperature:
Hot water – maximum 80°C (inlet 12°C)

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

Pump Type:
Crankshaft pump with brass cylinder head and ceramic sleeve pistons

Included Accessories:
10 m high-pressure hose (DN 8, 315 Bar)
Standard hot water trigger gun
1050 mm spray lance
Power nozzle

Application Suitability:
Designed for tough daily cleaning on construction sites, in agricultural operations, and in the automotive and transport industries. Built for long run times, reliability, and ease of maintenance.

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

Mounting / Portability:
Puncture-proof, large wheels with crane hook for easy transport. Open-frame steel design provides access to components for simple servicing.

Dimensions (L x W x H) (Millimetre):
1075 x 722 x 915 mm

Weight (kg):
157 kg (with accessories)
167 kg (incl. packaging)

Safety Features:
Pressure cut-off system
Thermo and safety valve for protection
Integrated water filter for pump safety
SDS system to dampen vibrations and pressure surges
Eco!efficiency mode for economical temperature range (60 °C)

Warranty & Service Support:

2 years (*Plus 2 years when registered online)

The Karcher HDS 13/20-4 S Classic Hot Water Pressure Cleaner is a high-flow, heavy-duty industrial cleaning system engineered for demanding professional applications where cleaning speed, reliability and long operating periods are essential.

Delivering 2,900 PSI (200 Bar) working pressure and an exceptional water flow of up to 21.7 litres per minute (1,300 L/h), the HDS 13/20-4 S Classic combines high pressure, high water volume and hot water up to 80°C to efficiently remove mud, grease, oil and stubborn contamination from machinery, vehicles, plant and industrial equipment.

Powered by a 9.5 kW three-phase electric motor and equipped with a heavy-duty crankshaft pump with brass cylinder head and ceramic sleeve pistons, this machine is designed as a dependable industrial workhorse for businesses requiring serious cleaning performance day after day.

High-Flow Industrial Cleaning Performance

One of the biggest advantages of the Karcher HDS 13/20-4 S Classic is its impressive 21.7 L/min maximum water flow.

While pressure is important for breaking contamination away from a surface, water flow is critical for carrying loosened dirt, mud and debris away. This becomes particularly important when cleaning large machinery, earthmoving equipment, trucks and heavily contaminated surfaces.

Combining 2,900 PSI working pressure with up to 21.7 L/min flow gives the HDS 13/20-4 S Classic outstanding cleaning capability for large-scale industrial washdown.

Hot Water Cleaning up to 80°C

The HDS 13/20-4 S Classic provides hot water cleaning at temperatures up to 80°C, making it particularly effective when tackling oily and greasy contamination.

Heat assists in breaking down oils, grease and other stubborn residues that can be difficult to remove efficiently using cold water alone.

Combined with the machine's high water flow, this makes the HDS 13/20-4 S Classic particularly well suited to demanding machinery, transport, agricultural and industrial cleaning applications.

Heavy-Duty Crankshaft Pump

At the heart of the HDS 13/20-4 S Classic is a robust crankshaft high-pressure pump with a brass cylinder head and ceramic sleeve pistons.

This professional pump design is engineered for durability and reliable performance under demanding operating conditions.

An integrated water filter helps protect the pump against contamination entering through the water supply, while Karcher's SDS system helps absorb vibration and pressure surges within the high-pressure system.

Low-Speed 4-Pole Electric Motor

The machine is powered by a heavy-duty 9.5 kW, 4-pole low-speed electric motor operating from a 400V three-phase power supply.

The low-speed motor configuration is designed for professional applications requiring reliability and extended operating periods.

Combined with the crankshaft pump, the HDS 13/20-4 S Classic provides a robust drive system suitable for demanding commercial and industrial cleaning environments.

Built for Long Run Times

The HDS 13/20-4 S Classic is designed for businesses where pressure cleaning is a regular part of daily operations.

A generous 30 litre fuel tank supports extended hot water operation, while the machine's heavy-duty motor, pump and heating system are designed for demanding professional workloads.

This makes it particularly suitable for transport depots, construction companies, agricultural operations and industrial facilities where large equipment needs to be cleaned efficiently.

Rugged Open-Frame Construction

A strong tubular steel frame provides protection for the machine while maintaining easy access to major components.

The open-frame design simplifies routine inspection, servicing and maintenance, making the HDS 13/20-4 S Classic particularly practical for industrial users who value straightforward equipment with minimal unnecessary complexity.

Large puncture-proof wheels assist with movement across uneven worksites, while the integrated crane hook allows the machine to be lifted when required.

Eco!efficiency for Economical Hot Water Cleaning

Karcher's eco!efficiency mode allows the machine to operate within an economical temperature range of approximately 60°C.

This provides effective hot water cleaning while helping reduce burner fuel consumption and operating costs.

For businesses using their pressure cleaner regularly, improved fuel efficiency can provide meaningful savings over the working life of the machine.

Professional Accessories Included

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

• 10 m high-pressure hose, DN 8, rated to 315 Bar
• Professional hot water trigger gun
• 1050 mm spray lance
• Power nozzle

This professional accessory package provides a practical setup for machinery, vehicle, equipment and general industrial cleaning.

Integrated Safety and Machine Protection

The HDS 13/20-4 S Classic incorporates important protection systems designed to support reliable professional operation, including:

• Pressure cut-off system
• Thermo valve
• Safety valve
• Integrated water filter
• SDS vibration and pressure surge damping system
• Robust tubular steel protective frame
• Eco!efficiency burner control

Together, these systems help protect major components and support reliable operation under demanding working conditions.

Ideal Applications

The Karcher HDS 13/20-4 S Classic is particularly well suited to:

• Earthmoving machinery
• Excavators and loaders
• Heavy equipment
• Construction machinery
• Agricultural machinery
• Tractors and farm equipment
• Trucks and commercial vehicles
• Fleet washing
• Transport depots
• Mining support operations
• Plant and equipment cleaning
• Industrial maintenance
• Manufacturing facilities
• Commercial wash bays
• Grease and oil removal
• Heavy mud removal

The combination of 2,900 PSI pressure, 21.7 L/min water flow and hot water up to 80°C makes this machine especially effective for applications involving large equipment and substantial quantities of dirt, mud and contamination.

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 high-flow industrial hot water pressure cleaner built for demanding daily use, the Karcher HDS 13/20-4 S Classic provides an excellent combination of water volume, pressure, heat, durability and straightforward professional engineering