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The Swiss Quality Infrared System



The fast medium wave KRELUS IR-heaters are superior

Due to the physical properties of almost all materials which can be treated by infrared, the medium-wave radiation in the range of 2,5 µm - 3,5 µm gets the best results. This is just the emission range where our KRELUS-IR-heaters gets the highest performance

Our modular and custom made IR-heaters leave all opportunities for the individual, almost endless applications.

The KRELUS-IR-heaters are working with the shortest reaction time ON/OFF. This guarantees the highest economical use of electrical energy and fastest adaption to required temperatures on product surfaces. Consequently our IR-heaters are highly active with gentle action for treated products and even more important: they are energy saving.


The advantages of the KRELUS IR-heaters

  • highest energy efficiency
  • fast respond ON/OFF
  • no increased start-up current
  • medium wave energy in the best absorption range
  • continuously controllable from ambient to 850°C (1562°F) 2,5 µm - 9,6 µm
  • power density up to 50 kW/m2 (5 W/cm2)
  • full area heating / radiating
  • modular sizes and custom made
  • from 250 mm (10") to 9500 mm (374")
  • all voltages from 10 Volt to 660 Volt
  • fully controllable

Applications examples

  • coating of plastic, textile, paper, etc.
  • thermoforming
  • activating of glue
  • lamination
  • melting of plastic powder
  • curing of plastics (gelification)
  • preheating before embossing
  • welding of car parts (also in 3D)

generally: everywhere in the industry where the energy saving factor becomes important for the infrared application.


Custom IR-heaters

KRELUS also supplies the electrical and electronic controls with temperature controlling, always according to customers requirements.


Electric control


IR for Thermoforming (Automotive)


Electric control for high capacity


Krelus Mini-IR G 14


Krelus Mini-IR G 7


More about us


 Ausserfeldstrasse 14

 CH-5036 Oberentfelden


Phone+41-(0)62 739 30 70

Fax+41-(0)62 739 30 89