High pressure cleaners
Why high pressure cleaning matters
Keeping things clean on board isn’t always easy and having the right tools makes all the difference. Effective, safe, and fit-forpurpose equipment is essential, and high-pressure cleaning systems deliver a fast and powerful solution to remove even the toughest dirt and build-up. By significantly reducing time and manual effort, high-pressure cleaning becomes indispensable for ship operations.
From general cleaning and engine rooms to cargo holds and surface preparation, high-pressure cleaning is valued for its speed, efficiency, and versatility. Vessels continuously face harsh environments and a wide array of contaminants, including salt, grease, soot, and rust. Choosing the right high-pressure cleaning system is therefore critical not only for optimal cleaning performance, but also for ensuring safety, operational efficiency, and the long-term sustainability of your vessel.
Effective onboard cleaning is about finding the right balance between mechanical force, chemical action, temperature, and time; the four pillars of the Sinner Circle theory. High-pressure cleaners are uniquely designed to maximize mechanical action, delivering powerful water jets that cut through dirt, oil, and scale quickly. When combined with the right temperature and cleaning chemicals, these machines reduce cleaning time and detergent use while improving cleaning.
Effective cleaning at sea starts with planning. Choosing the right method, equipment, and setup can save time, effort, and unnecessary wear on machines and surfaces.
At the core of every cleaning task are two key variables:
• The type of contamination (e.g. salt, oil, rust, grease)
• The nature of the surface (e.g. painted, metal, sensitive, rough)
Once these are defined, you can take control of your operation by:
• Selecting the right cleaning equipment for the job
• Adjusting pressure, water temperature, nozzle type as needed where applicable
• Choosing the correct chemical type and applying the proper dosage
• Applying the appropriate cleaning method (e.g. soaking, foaming, pressure washing, manual assist)
Three practical tips for success
Always prioritize safety and environmental compliance.
Efficient cleaning should never compromise crew safety or pollute the environment.
When using chemicals on vertical surfaces, start from the bottom and work upwards.
This way chemicals will not produce “channels” down the surface and will not run too fast off the surface. Use of chemicals with foaming properties adhere better and allow longer contact time.
Never allow rinsing water to flow over uncleaned areas.
The rinsing water can draw chemicals from the surface if running over non-cleaned surfaces. High pressure washing together with optimum concentration of chemicals will give the best results.
How does a high pressure cleaner work
A high-pressure cleaner transforms ordinary water into a powerful tool for tackling tough cleaning jobs. Here’s how the process works, step by step:
Water is pressurized by a pump with an electric motor.
The heart of every highpressure cleaner is its pump. When the machine is activated, water enters through the inlet hose drawing water from a tap or a tank, then flows through the pump which pressurizes the inlet water. The working pressure will cause very high water speed, and that is actually what is being utilized during the cleaning.
The outlet pressure depends on the valve setting and the nozzle size.
From the pump, the pressurized water is then forced at high speed through an outlet valve and into the high pressure hose all its way till the nozzle. The pump provides a constant volume of water, while the outlet pressure depends on the valve setting and the size of the nozzle attached to the end of the operator’s lance. The result is a forceful stream with the power to tackle dirt and grime.
The high-speed water jet breaks the bond between dirt and the surface.
As the water jet hits the surface you’re cleaning— whether it’s metal flooring, machinery, or deck areas—it effectively lifts and washes away dirt, oil, salt, and even rust. This method makes it much easier to clean large or hard-to-reach areas, saving time and effort while delivering a thorough result. The powerful flow also reduces the need for harsh chemicals and manual scrubbing, making the cleaning process more efficient.
Types of high pressure cleaners
High-pressure cleaners come in several main categories, each designed to match different cleaning challenges and onboard requirements. Understanding the differences helps you choose the right tool for every job.
Cold water Hot water Air-driven Stationary / Multi-pump installations
Cold water cleaners
Cold water cleaners are the most widely used pressure washers on ships, valued for their reliability and versatility. The temperature of the water jet coming from the nozzle is almost equal to the temperature of the inlet water. However, there is option for increasing the inlet water temperature for increased performance or a heating unit can be used to heat up the outlet water as well in some models.
High pressure cleaners 150 - 220 bar
Versatile sizing: available in a range of sizes and power ratings for everything from light maintenance to intensive cleaning.
Within the range of Unitor’s cold water cleaners you will find a model suitable for any particular cleaning task. All units are easy to use and extremely flexible in operation. The compact design and the low weight result in optimum maneuverability. All the units come as plug-anplay, with needed lance, gun, electrical cable, high pressure hose.
Adjustable pressure: some units feature adjustable pressure setting, controlled through suitable double lance and an extra nozzle.
Chemical application: apply proper detergent if/ when necessary, through the adjustable chemical injection systems (internal or external) under low pressure.
HPC 30/1 220V/60Hz
Product number: 729333
Ideal for: Engine rooms, accommodation decks, small cleaning jobs.
Key features:
• Lightweight and easy to move
• Built-in foam sprayer
• Stainless steel pistons
• Pressure gauge and washable water filter
Supplied with: Tornado Lance, Spray Gun, 10 m HP Hose, 10 m Electrical Cable and a 2.5 ltr Bottle for Foaming Application. See full table of accessories on page 10.
HPC 54/1 3x440/60Hz
Product number: 777886
Ideal for: Engine rooms, deck areas, and general-purpose cleaning (3–4 hours continuous operation).
Key features:
• Compact design with built-in storage for lance and cable
• Robust and stable design for tough environments
• Quieter operation and longer lifespan
• Can be connected to hot water (up to 60 °C)
Supplied with: Tornado Lance, Spray Handle, Quick Coupling, 10 m HP Hose, 10 m Electrical Cable, and Water Inlet Coupling. See full table of accessories on page 10.
HPC 67/1 3x440/60Hz
Product number: 777889
HPC 67/1
3x400/50Hz
Product number: 777888
Ideal for: Engine rooms, deck cleaning, and intensive daily maintenance (up to 8 hours continuous operation).
Key features:
• Heavy-duty design with high mobility
• 4 ceramic pistons and double bearings for durability
• 1750 rpm motor for quiet, long-lasting use
• Accepts inlet water up to 85 °C
• Dual chemical dosing tanks with external canister option
• Extra motor protection for marine use
Supplied with: Tornado Lance, Spray Handle, Quick Coupling, 10 m HP Hose, 10 m Electrical Cable and Water Inlet Coupling. See full table of accessories on page 10.
Ultra high-pressure cleaners 300 - 500 bar
Superior cleaning performance: easily removes heavy marine fouling, rust, paint, and grease. Ideal for hulls, tanks, and decks.
Reduced downtime and labour: ultra high-pressure machines complete cleaning tasks faster with fewer crew members, freeing time for core ship operations.
Safer and sustainable: minimizes chemical use while incorporating safety features for crew protection in demanding environments.
Within the range of Unitor ultra high-pressure cleaners, you will find a model suited for the most demanding cleaning tasks on board. Designed for heavy-duty performance, these machines deliver exceptional power for deck cleaning, surface preparation, rust, and paint removal. All models are built for maximum reliability, safety, and durability in harsh marine environments. Despite their high performance, they are compact in design, ensuring easy handling and maneuverability even in tight spaces. Each unit is plug-and-play, supplied complete with all necessary accessories ready for immediate use once connected to power and water.
HPCE Dynamis 300+
Product number: 771716
Power: 380 - 440 V, 50/60 Hz
Ideal for: Deck cleaning, rust removal, and tough surface jobs.
Key features:
• High performing pump 16 L/min at 300 bar working pressure
• Ultra slim design and lifting eyes
• Stainless steel frame and housing
• Water filter protection and filter clogging indication
• Comes with safety valve
• Tailor made for maritime use
Supplied with: High-Pressure Handle with Swivel, 800 mm Lance with Flat Nozzle, 10 m IP67 Power Cord, 25 m HP Extreme 500 bar Hose, Two Spare Filter Elements with Spanner, and Inlet GEKA Coupling.
HPCE Dynamis 350+
Product number: 771785
Power: 380 - 440 V, 50/60 Hz
Ideal for: Heavy-duty deck cleaning, grease and rust removal, and cargo hold cleaning.
Key features:
• Powerful 18 L/min pump at 350 bars for maximum cleaning force
• Ultra-slim stainless-steel design with lifting eyes for easy handling
• Water filters with clogging indicators for pump protection
• Built-in safety and unloader valves for safe operation
• Corrosion-resistant build, tailored for harsh marine environments
Supplied with: High-Pressure Handle with Swivel, 980 mm Double Lance with Flat Nozzle, 10 m IP67 Power Cord, 25 m HP
Extreme 500 bar Hose, Two Spare Filter Elements with Spanner, and Inlet GEKA Coupling.
HPCE Dynamis 500+
Product number: 720131
Power: 380 - 440 V, 50/60 Hz
Ideal for: Heavy cargo cleaning, surface prep, rust and paint removal on deck.
Key features:
• Delivers 21 L/min at 500 bars for extreme cleaning performance
• Ceramic pistons and black-coated pump for long service life
• Rugged stainless steel frame with 50-liter integrated water break tank
• Dual water filters for pump protection and efficient operation
• Equipped with zero pressure unloader valve and safety valve
• Built compact for maneuverability and designed for harsh marine use
Supplied with: High-Pressure Handle with Swivel, 800 mm
Lance with Flat Nozzle, 10 m IP67 Power Cord, 25 m HP
Extreme 500 bar Hose, Two Spare Filter Elements with Spanner, and Inlet GEKA Coupling.
Hot water cleaners
Hot water cleaners combine the force of pressure with the added cleaning power of heat. By heating water before it leaves the nozzle, these systems make tough jobs easier especially where oils, greases, or stubborn residues are involved.
Faster results: hot water quickly breaks down oils, greases, and sticky residues, cutting cleaning time significantly.
Improved hygiene: the high temperatures help eliminate bacteria and bio-contaminants, keeping machinery and spaces more sanitary.
Reduced chemical usage: because heat makes cleaning more effective, you often need less chemical detergent, which supports safer and more sustainable practices.
Product number: 729474
Power: 220/440 V
Ideal for: Heavy-duty cleaning in deck areas, engine rooms, and oily environments requiring hot water cleaning for faster results and reduced chemical usage.
Key features:
• Brass pump head and ceramic pistons for durability
• Diesel-powered eco boiler system with up to 150 °C water temperature
• Flow-activated unloader for smoother operation
• Innovative 4 big-wheel design for easy mobility
• Built-in dual detergent tanks with injector
• Intuitive control panel with diagnostics function
• Low fuel and pump oil level alarm system
• Quieter operation and longer lifespan
Supplied with: Tornado Lance 112 cm, Spray Handle, Quick Coupling, 10 m HP Hose, 10 m Electrical Cable, and Water Inlet Coupling.
HPCH 61 HW
Quick product selector table
659151
545343
Air-driven cleaners
Air-driven high-pressure cleaners are the preferred solution for environments where electrical power is limited or restricted for safety reasons—such as tank cleaning, confined spaces, or hazardous zones.
No electrical components: eliminates the risk of sparks in flammable areas.
Compact and portable: ideal for flexible, on-the-spot cleaning.
Robust and simple: fewer parts mean lower maintenance needs.
HPC Airclean 32
Product number: 734095
Ideal for: Use on board ships, offshore installations, and industrial environments where electricity is restricted or hazardous.
Key features:
• General purpose cleaning
• Lightweight and easy to set up, can be moved with ease
• Can be used with hot water, speeding up the cleaning process
• Simple and robust air motor for easy maintenance and long operating life boosters
Supplied with: Single Lance Including Nozzle, 10 m HP Hose, Spray Handle, Exhaust Air Muffler, Air Lubricator and Y-Strainer.
Best for use in potentially hazardous zones or when electrical supply is unavailable or unsafe.
Product number: 734087
Ideal for: Use on board ships, offshore installations, and industrial environments where electricity is restricted or hazardous.
Key features:
• Spot cleaning
• Lightweight and easy to set up, can be moved with ease
• Can be used with hot water, speeding up the cleaning process
• Simple and robust air motor for easy maintenance and long operating life boosters
Supplied with: Single Lance Including Nozzle, 10 m HP Hose, Spray Handle, Exhaust Air Muffler, Air Lubricator and Y-Strainer.
HPC Airclean 480 EX-PRO
Product number: 651005
Ideal for: Use on board ships, offshore installations, and industrial environments where electricity is restricted or hazardous.
Key features:
• Heavy-duty cleaning
• Designed for portability, it is lightweight and easy to set up, allowing for quick transportation and use in tight spaces or uneven surfaces
• Can be used with hot water, speeding up the cleaning process especially for tough grease and dirt removal
• Easy-to-maintain air motor with minimal moving parts, ensuring long-term reliability and reducing the need for frequent servicing
Supplied with: Single Lance Including Nozzle, 10 m HP Hose, Spray Handle, Exhaust Air Muffler, Air Lubricator and Y-Strainer.
HPC Airclean 25
Stationary / Multi-pump installations
Stationary plants consist of one or more pump units and a control system and are characterized by their location far away from operation site. At the operation site, the high-pressure hose and lance are attached and even chemical can be added through an injector on the take out. These machines are designed for operations demanding regular, heavy-duty cleaning in multiple areas.
Centralized cleaning: permanently installed and can supply high-pressure water to different parts of the ship through a network of pipes.
Multi-user capability: ideal for larger vessels or when engine room and deck cleaning need to run at the same time.
Such systems have constant water temperature and pressure all the way to the take outs.
Efficiency gains: reduces setup and breakdown time, making regular cleaning more practical and efficient.
HPC Stationary 1P
Product number: 729401
Ideal for: Medium to heavy cold water cleaning applications on board ships, designed for use by a single operator simultaneously.
Key features:
• Stainless steel cabinet and robust frame for long-lasting durability
• Supports inlet water temperature up to 70 °C, compatible with preheated water for enhanced cleaning
• Heavy-duty 4 ceramic piston pump for extended working life
• Compact and easily mounted to bulkhead or deck
Supplied with: Water Break Tank for Trouble-Free Water Supply.
HPC Stationary 2P
Product number: 729402
Ideal for: Medium to heavy cold water cleaning applications on board ships, designed for use by one or two operators simultaneously.
Key features:
• Twin 4 ceramic piston pumps designed for long life under intense applications (8+ hours/day)
• Compact design for easy mounting to bulkhead or deck
• Supports inlet water temperature up to 70 °C for use with preheated water to boost cleaning performance
• Electronic control system allows selection for one or two users simultaneously
• Stainless steel cabinet for corrosion resistance and hygiene
Supplied with: Water Break Tank Ensuring Continuous Water Supply.
HPC Stationary Series (3P | 4P | 6P)
Flexible, powerful stationary cold water pump stations designed for maritime high-pressure cleaning — supplying from 3 up to 6 simultaneous operators with reliable, automatic pump activation based on demand.
Key features (all models):
• Stainless steel frame and rugged cabinet protect pumps and electronics
• Each pump with 4 solid ceramic pistons for durability
• Cold and hot water inlet valves included
• Intelligent pump control with front-panel touchscreen
• Adjustable line pressure to match cleaning needs
• Pumps auto-stop when demand reduces
• Rotational pump operation to minimize wear on individual pumps
• Front lower panel opens for easy pump access and serviceability
• Pumps mounted with rubber dampers and flexible connections to reduce vibration and stress
Each unit is supplied with a dedicated tool box for maintenance and service.
& specifications
HPC Solar Booster With 18 kW Heater
Product number: 651100
Ideal for: Boosting cleaning efficiency by delivering pre-heated water to high-pressure cleaning machines on board ships.
Key features:
• Integrated 18 kW electric heater with 119-liter tank for consistent hot water supply
• 4 ceramic piston pump designed for long-term, intensive marine operation
• Compact stainless steel frame and cabinet for durability in harsh environments
• Feeder pump ensures stable water flow and temperature before the HP pump
• Operates at 160 bar to reduce wear while maintaining effective cleaning
• Electric-only system for pollution-free onboard use and easy installation
Supplied with: Includes Internal Heating Tank and Feeder Pump System. Compatible with Unitor high-pressure accessories such as Hoses, Lances, Guns, Injectors, and Couplings (sold separately).
Full list of accessories available to order for stationary pump units
665158 Ergo 3000 Spray Gun
546036 Coupling Kit Ergo 3000
550035 Heavy Duty Hose 250 bar 25 m
550030 Heavy Duty Hose 250 bar Blue 25 m
770008 PPE Kit 500 bar
545025 Hose Protection 1400 mm Ø41 – 500 bars With Adjustable Strap
682070 Universal.3000 Lance 06 Nozzle
659128 Powerspeed Lance With 06 Nozzle
659110 Tornado Lance 92 cm With 06 Nozzle
546044 Washing Brush 235 cm Long
621938 Long Reach Lance
546150 Double Lance 200 cm Long 064 Nozzle
659151 Extendable Lance 5.5 m Without Nozzle
The 5.5 m lance has been developed to enable chemical application and high-pressure cleaning above the normal reach of any standard lance. *Nozzle 06 for 1P and 2P, 3P, 4P, 6P and Solar
545327 Chem. Injector Detachable
545343 Foam Lance 120 cm Long
*To be used with Foam Injector Detach
545335 Foam Injector Detachable
*To be used with Foam Lance 120 cm
623595 Take Off Valve 6402023 Acid Proof 316
623603 Take Off Valve 6402024 Chr. Plated Brass
633995 Q. Coupling, Male 3/4"
621821 Drain Cleaner F / HPC 67 / HPC 61 HW / Stationary, 20 m
545434 Double Lance 10 cm Long 06 Nozzle
621896 Hose Cart, Mobile
565853 545640 565861 Water Sand Blasting Lance F / VSB 300 03K
*Hose and Rod F / VSB300
*Rubber Nozzles (10 pcs) F / VSB 300
711119 HP. Outlet Hose For Stationary 2 m
571729 HP Wash 25 ltr
