500 bar hot and cold water jetting for demanding industrial cleaning, surface preparation and maintenance applications

When standard pressure washing equipment reaches its limits, the challenge isn’t always finding a bigger machine. It’s finding the right combination of pressure, flow, temperature and mobility for the job.

That’s why Flowplant is expanding its industrial cleaning range with the DYNAJET 500th HELI Blue Performance, a trailer-mounted hot and cold water jetting system offering up to 500 bar pressure and 30 l/min flow.

The new machine gives UK contractors and industrial operators access to a higher-performance cleaning solution for applications where conventional pressure washers may not provide the productivity or versatility required.

View the DYNAJET 500th HELI Blue Performance

 

When pressure, flow and temperature all matter

 Not every cleaning job needs 500 bar. But for businesses carrying out demanding industrial cleaning and surface preparation work, having access to the right level of performance can make a significant difference.

The Water Jetting Association defines water cleaning above 207 bar and up to 680 bar as high-pressure water cleaning, putting the DYNAJET’s 500 bar capability firmly within this category.

Always choose the right pressure for the task you’re completing.

The DYNAJET 500th HELI combines:

  • Up to 500 bar working pressure
  • Up to 30 l/min flow
  • Hot and cold water operation
  • Water temperatures up to 95°C
  • An integrated 1,000-litre water tank
  • A trailer-mounted design for moving between sites
  • A Stage V diesel engine approved for HVO100
  • Permanent hose reels for both supply and high-pressure hoses
  • Stepless pressure adjustment for different applications

This machine is perfect for contractors and maintenance teams who need to take high-performance cleaning capability directly to the job.

 

Where could 500 bar hot water make a difference?

 We’ve picked out several areas of the UK market where this machine will really shine:

Industrial cleaning and maintenance

Industrial cleaning contractors often work in environments where contamination, deposits, coatings and residues can be difficult to remove efficiently.

The DYNAJET can be used for applications including industrial cleaning, paint and rust removal, surface preparation, concrete renovation and specialist maintenance work.

For contractors, the value isn’t simply the headline pressure figure. A machine capable of handling a wider range of demanding applications can provide greater flexibility when moving between jobs.

Surface preparation and coating removal

Surface preparation is another area where equipment selection can have a direct impact on productivity.

Removing old coatings, corrosion and contamination before refurbishment or recoating can be labour-intensive, particularly when working on large structures or difficult-to-access areas.

The DYNAJET’s combination of high pressure and hot water gives contractors another option when conventional cleaning equipment isn’t delivering the required performance.

Water and wastewater infrastructure

The UK water sector is entering a significant period of infrastructure investment. Water UK says water companies in England and Wales are expected to invest £105 billion between 2025 and 2030, covering the systems used to supply water and treat sewage.

That scale of investment means continued demand for maintenance, refurbishment and asset-care work across treatment works, pumping infrastructure and associated facilities.

Water UK has also highlighted growing concern around long-term asset health and the need to maintain infrastructure before failures occur.

For contractors working within this supply chain, having versatile cleaning and surface-preparation equipment available on site can be an important part of completing maintenance work efficiently.

Marine and heavy engineering

The DYNAJET is also suited to demanding marine maintenance applications, including cleaning and preparation work where corrosion, coatings and contamination need to be removed from hard-wearing surfaces.

For marine contractors and shipyards, trailer-mounted equipment can also provide an advantage where machinery needs to move between work areas rather than remain permanently installed.

Energy, manufacturing and industrial facilities

Oil and gas, energy, manufacturing and processing facilities all present cleaning and maintenance challenges where downtime matters.

The WJA’s current Code of Practice specifically covers industrial cleaning and surface preparation and is applied across sectors including oil and gas, petrochemicals, manufacturing, marine maintenance, facilities maintenance and wastewater.

For contractors working across these sectors, the ability to switch between hot and cold water and adjust operating pressure provides greater flexibility than a machine designed around a single cleaning application.

 

One machine, more possibilities

 The DYNAJET 500th HELI isn’t intended to replace every machine in the Flowplant range.

Our established Hotshot ECO 200 Hot Water Trailer Jetter remains an effective option for many commercial and industrial cleaning applications.

The DYNAJET sits further up the performance range for customers who need higher pressure, higher flow and the ability to combine hot and cold water cleaning.

That gives UK customers more choice and, importantly, makes it easier to select equipment around the application rather than trying to make one machine do everything.

 

Performance needs to be matched with safe working practices

 High-pressure water jetting is a specialist activity and equipment selection is only part of the equation.

The Water Jetting Association’s new Black Code of Practice, introduced in 2026, brings together guidance covering high-pressure water jetting, pressure washing, industrial cleaning, surface preparation, equipment, hoses, PPE, safe systems of work and maintenance.

For businesses considering higher-pressure equipment, that makes operator competence, risk assessment, equipment maintenance and appropriate accessories just as important as the headline pressure specification.

 

Is 500 bar the right choice for your application?

The important question isn’t whether 500 bar sounds impressive.

It’s whether it provides the right combination of pressure, flow, temperature and flexibility for the work you undertake.

If you’re carrying out industrial cleaning, surface preparation, maintenance, marine work, infrastructure refurbishment or specialist contracting, the Flowplant team will assess whether the DYNAJET 500th HELI meets your requirements.

 

Explore the DYNAJET 500th HELI Blue Performance

The DYNAJET 500th HELI Blue Performance is now available to UK customers through Flowplant.

Find out more about the DYNAJET 500th HELI Blue Performance

Need to know whether 500 bar hot water jetting is right for your next project? Talk to the Flowplant team.

sales@flowplant.com | 01722 325424