Karcher HDS 18/18-4 Classic 2610 PSI High Flow Hot Water Pressure Cleaner

Pressure Rating (PSI / Bar):
180 Bar (2,610 PSI) working pressure
50 Bar (725 PSI) minimum

Flow Rate (L/min):
14.5 - 21.7 L/min (870 - 1730 L/h)

Power Type:
Electric - 3-phase, 400V, 11 kW (50 Hz)

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

Motor Brand and Type:
4-pole, low-speed, air-cooled electric motor with soft start

Pump Type:
Robust crankshaft pump with water fine filter for protection

Included Accessories:
10 m high-pressure hose
EASY!Force Advanced trigger gun
1050 mm spray lance
Power nozzle
Servo Control for pressure and water flow adjustment

Application Suitability:
Designed for maximum efficiency in heavy-duty industrial cleaning where high flow rate and dual-lance operation are required. Ideal for construction, industrial plants, and transport equipment.

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

Mounting / Portability:
Mobile chassis with puncture-proof wheels, robust metal steering rollers, and crane hook for handling. Suitable for construction sites and stationary use.

Weight (kg):
210 kg (with accessories)
222.2 kg (incl. packaging)

Safety Features:
Flame monitoring for stationary operation
System maintenance dosing in float box to prevent limescale
Water fine filter to protect pump
Safety valve, water shortage and fuel safeguard
Pressure switch-off
Dry-running protection
SDS system to absorb vibrations and pressure surges

Warranty & Service Support:
2 years (4 years when registered online)

The Karcher HDS 18/18-4 Classic Hot Water Pressure Cleaner is a high-flow industrial cleaning system engineered for maximum productivity in demanding commercial and industrial environments. Combining powerful hot water cleaning with an exceptional water flow rate, it is particularly suited to large machinery, transport fleets, construction equipment and industrial washdown.

Delivering up to 2,610 PSI (180 Bar) working pressure and an impressive 21.7 litres per minute (1,730 L/h), the HDS 18/18-4 Classic provides the water volume required to rapidly remove heavy dirt, mud, grease and industrial contamination from large surfaces.

Its high water output also supports two-lance operation, allowing two operators to clean simultaneously for increased productivity on large-scale cleaning jobs.

Exceptional 21.7 L/min High Flow Performance

The defining feature of the HDS 18/18-4 Classic is its exceptional water flow.

With an adjustable flow range of 14.5 to 21.7 L/min, the machine provides substantially more water volume than many conventional commercial pressure cleaners.

High pressure helps break contamination away from the surface, while high water flow provides the volume needed to rapidly flush loosened dirt, mud and debris away.

This makes the HDS 18/18-4 Classic particularly effective for cleaning:

• Earthmoving machinery
• Construction equipment
• Trucks and trailers
• Heavy vehicles
• Agricultural machinery
• Industrial plant
• Large workshop areas
• Transport fleets
• Heavily contaminated equipment
• Large hard surfaces

For applications involving heavy mud and large equipment, water flow can be just as important as headline PSI.

Dual-Lance Operation for Increased Productivity

The high water output of the HDS 18/18-4 Classic allows two spray lances to be operated simultaneously when correctly configured.

This can significantly increase cleaning productivity in large facilities and fleet environments by allowing two operators to work from the same machine.

For businesses cleaning multiple trucks, large machinery or substantial industrial areas, dual-user capability can reduce overall cleaning time and improve equipment utilisation.

Hot Water Cleaning up to 80°C

The HDS 18/18-4 Classic provides hot water cleaning up to 80°C, making it highly effective against oil, grease, lubricants and other stubborn industrial contamination.

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

Combined with its exceptionally high flow rate, the HDS 18/18-4 Classic provides the heat, pressure and water volume required for serious industrial washdown.

Heavy-Duty 11 kW Three-Phase Motor

Power is supplied by a robust 11 kW, 400 V three-phase electric motor.

The low-speed, 4-pole motor is designed for demanding professional operation and features soft start technology, helping manage electrical load during startup.

Its heavy-duty configuration makes the HDS 18/18-4 Classic suitable for continuous professional applications where reliability and extended operating periods are essential.

Industrial Crankshaft Pump

At the heart of the machine is a robust crankshaft high-pressure pump engineered for long-term industrial operation.

An integrated water fine filter protects the pump against contaminants entering through the water supply, helping reduce wear and extend component life.

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

EASY!Force Advanced and Servo Control

Despite its substantial cleaning output, the HDS 18/18-4 Classic incorporates several features designed to make operation easier.

The EASY!Force Advanced trigger gun uses the recoil force of the high-pressure water jet to reduce the holding force required by the operator.

Servo Control allows pressure and water flow to be adjusted directly at the lance, making it easier to match cleaning performance to the application without continually returning to the machine.

Built for Demanding Industrial Environments

The HDS 18/18-4 Classic features a rugged chassis designed for industrial and construction environments.

Puncture-proof wheels and robust metal steering rollers provide mobility around worksites and facilities, while the integrated crane hook allows the machine to be safely lifted and repositioned where required.

This combination makes the machine suitable for both mobile use around large sites and stationary industrial cleaning installations.

Advanced Machine Protection

The HDS 18/18-4 Classic incorporates comprehensive protection systems for demanding professional use, including:

• Pressure switch-off
• Dry-running protection
• Safety valve
• Water shortage safeguard
• Fuel safeguard
• Flame monitoring
• Water fine filter
• SDS vibration and pressure surge damping
• System maintenance dosing to help prevent limescale
• Soft-start motor system

These systems help protect critical components and support dependable operation during extended industrial cleaning.

Professional Accessories Included

The Karcher HDS 18/18-4 Classic is supplied with:

• 10 m high-pressure hose
• EASY!Force Advanced trigger gun
• 1050 mm spray lance
• Power nozzle
• Servo Control for pressure and water flow adjustment

This professional accessory package provides a complete setup for demanding industrial cleaning applications.

Ideal Applications

The Karcher HDS 18/18-4 Classic is particularly suited to:

• Heavy industry
• Mining support operations
• Earthmoving equipment
• Construction companies
• Transport depots
• Truck and fleet washing
• Heavy vehicle workshops
• Agricultural machinery
• Industrial plants
• Manufacturing facilities
• Equipment hire fleets
• Industrial wash bays
• Plant maintenance
• Heavy mud removal
• Grease and oil removal
• Large-scale commercial cleaning

Its combination of 2,610 PSI pressure, up to 21.7 L/min water flow, 80°C hot water and dual-lance capability makes it an excellent choice where cleaning speed and productivity are more important than simply chasing maximum PSI.

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 capable of cleaning large equipment and extensive areas efficiently, the Karcher HDS 18/18-4 Classic delivers the water volume, heat and heavy-duty construction required for serious professional cleaning.

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