- +36 30 411 3455
- info@humanex-tech.com
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.
cleaning during operation
no corrosion risk
no chemicals, no waste
documented efficiency
Online, bottom-up finned-tube cleaning with a non-corrosive abrasive — applicable even in winter, with no water load.
Dry removal of stubborn deposits from refractory-lined furnaces and the convection zones of boilers.
Removal of paint, tar (gudron) and process contamination without damaging the metal surface.
„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














Tell us what air cooler or heat exchanger you operate — we will recommend an online dry cleaning solution that minimises downtime.
Tell us what you're working with — our engineers will propose the right solution.