Hot Air Stenter

KAPrec® Heat Recovery Unit

  • Air-to-Air Heat recovery
  • Completely pre-assembled and ready for installation.
  • Savings up to 30% of thermal energy.
  • Payback period, as low as 12 months, depending upon the fuel used.
  • Minimum cleaning frequency
  • Achieving temperature faster and equilibrium in each chamber
  • All components which will come into contact with hot air are of SS304.
  • Economical even for small machines, due to modular design.


  • Clean fresh air passes through segment of heat exchanger (no obstacles in hot air passage)
  • No reinforcement / replacement of exhaust fan required even at the time of retrofitting.
  • Can be easily retrofitted into the existing exhaust ducts – no large scale / expensive re-ducting required.
  • Heated-up fresh air directly fed into the stenter compartment that leads to virtually no heat radiation loss.
  • 50mm thick high density insulation is provided inside the HRU to prevent heat loss even when exhaust air is passing through HRU.