Our own field of expertise · NPJ dry cleaning

NPJ industrial dry cleaning during operation

With our NPJ dry technology we clean industrial surfaces without water or aggressive chemicals — air coolers, furnaces, boilers and process equipment, even during operation. A clean surface, restored efficiency, with no downtime.

Online

cleaning during operation

Water-free

no corrosion risk

Environmentally friendly

no chemicals, no waste

Measurable

documented efficiency

Our services

What NPJ dry cleaning offers

Air cooler dry cleaning

Air cooler cleaning

Online, bottom-up finned-tube cleaning with a non-corrosive abrasive — applicable even in winter, with no water load.

Furnace cleaning

Furnace and boiler cleaning

Dry removal of stubborn deposits from refractory-lined furnaces and the convection zones of boilers.

Industrial deposit removal

Industrial deposit removal

Removal of paint, tar (gudron) and process contamination without damaging the metal surface.

Why us
A self-sufficient, experienced team
  • Requires no plant utilities. The team arrives fully self-supplied.
  • Does not damage the fins. Correct pressure and a non-corrosive abrasive.
  • 10+ years of experience in industrial air cooler cleaning.
  • Up to 150–200 m height — we reach the coolers.
  • VCA / SCC certification and ATEX-rated equipment.
  • Minimal (or no) scaffolding. Faster than wet washing.
  • Environmentally friendly: no water, hazardous chemicals or residual waste.
  • Measurement report on request, documenting the before–after condition.
NPJ dry cleaning service
What they said about us
„The difference was clearly visible to the naked eye — not only on the tubes, but across the work area as well. I had only ever seen a cooler this clean when it was brand new.”
Refinery · reliability engineer
„The technology allows units operating above 100 °C to be cleaned online. If the cooler is clean, the plant does not lose 10% of its production capacity.”
Petrochemical plant · process engineer
„The NPJ dry technology has proven its worth: high efficiency, minimal »disruption«. The residual material decomposes, leaving no hazardous waste after the work.”
Oil refinery · maintenance manager
„A highly effective technology. The contractor worked impeccably and fairly — we were thoroughly satisfied with their attitude and expertise.”
Chemical plant · plant engineer
„We are satisfied with the quality and professionalism of the work. The dry NPJ technology can be carried out regardless of the weather, even during operation.”
Power plant · maintenance
„I recommend adopting the technology into maintenance practice and extending it to all compressor stations.”
Natural gas transmission · operations manager
MOL
Slovnaft
Hungarian Gas Storage
HEXUM
FGSZ
Nitrogénművek Zrt.
E.ON
MOL
Slovnaft
Hungarian Gas Storage
HEXUM
FGSZ
Nitrogénművek Zrt.
E.ON

Cut your cooling capacity losses

Tell us what air cooler or heat exchanger you operate — we will recommend an online dry cleaning solution that minimises downtime.

Get in touch
Let's talk

Tell us what you're working with — our engineers will propose the right solution.