Exhibitornews K Trade Fair 2013

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Infrared Heaters and Hot Air Drying Systems

Deutscher Text >>>

Since 1975  we developed and produced Infrared-Heaters with highest per- formance and fast reaction. Due to the highly acknowledged Swiss quality, KRELUS is in a position to supply products worldwide to more than 60 countries. Our high performance equipments are used on all continents.

Krelus  - Firmengebäude in Oberentfelden

Our main competency is the precise application, planning and execution of our customers' requirements. Thanks to the innovative technology of our products we can usually find solutions with substantial energy saving effects for our customers.

Energy saving IR-heaters
For more than 30 years, KRELUS AG has been manufacturing custom-made infrared heater systems for a wide range of applications. Areas of particular emphasis are:
• Thermoforming
• Textile, film, paper and foil coating
• Embossing calanders
• Laminating machines
• Pre-drying and heating equipment
• etc.

Krelus AG - Modul-Strahler Spezial
Special module heater

The unique KRELUS technology applies direct radiation from the heat source to the product. The special heater construction effectively blocks the heat loss to the reverse side. The fast medium-wave KRELUS-IR-heater allows operations with precise temperature control on product surfaces. Due to the very rapid reaction time of these IR-heaters, they can be switched off even for short breaks. With the optimised emission of the heat energy in the real medium wave range (+/- 3 microns) - where almost all products have best absorption - the KRELUS-IR- heater is the more efficient and superior in comparison to traditional infrared heaters and allows energy and cost savings.

Krelus AG - IR-Strahler Massanfertigung
Costum made IR heater

KRELUS have now extended its range of made-to-measure IR infrared heaters with six standard models. Using identical technology, we are now able to supply the sizes 248 x 248 mm, 123 x 496 mm, 123 x 248 mm, 398 x 79 mm, 123 x 123 mm and 248 x 61 mm.  Power densities of 26 to 61 kW/m2 are available. These types of module allow individually controlled radiation zones to be easily constructed to any desired size. These modules are of course particularly suited for use in thermoforming equipment and on continuous running lines to give accurate and consistent temperature profiles.

Krelus AG - Mini
Krelus Mini

NEW: We offer the following modules:

KRELUS IR-Heater model “SUPERMINI” for Thermoforming
Heater dimension:
123 x 123 x 50 mm     Mod. G11 - 12 - 2.5 SM5
248 x 61 x 50 mm       Mod. G5 - 25 - 2.5 SM5
Electrical details:       77 Volts / 12,5 Amperes / 965 Watts / ca. 61 kW/m2

Krelus AG - Modell SUPERMINI

Display / testing area: 500 x 375 mm
Krelus AG - Darstellung, Testfläche

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
• 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


The unique technology used in the fast medium-wave KRELUS IR heater allows operation with precise temperature control. These infrared heaters have very rapid reaction time, which allows them to be switched on and off for brief periods to allow energy savings in comparison to traditional radiation systems.
KRELUS IR heater systems are suited to a range of applications, including:
• Evaporation of liquids
• Drying inks
• Melting plastics
• Installation in ovens and drying tunnels
• Speed improvement on existing production lines

Krelus AG - Bild 2
Custom made IR-heater with specific size and capacity

KRELUS IR infrared heaters require virtually no maintenance, as they have no moving parts. Any necessary foil replacement can be easily achieved by the client's own personnel.

Electronic controls allow the user to regulate heater output continuously on any of the following principles:
• Machine speed
• Humidity (measured by probe)
• Temperature (measured by probe)
• Optical pyrometer
• Manual regulation by potentiometer

Krelus AG - Grosse Steuerung
KRELUS Electronic control

Designed for drying printing inks and water-based varnishes on sheet-fed printing presses, KRELUS offers a wider range of custom-made solutions. The KRELUS infrared dryer for normal printing inks has been installed more than 2,500 times. It shows a number of advantages, compared to so-called lamp dryers, including:
• Fast on / off reaction
• Self-cleaning function
• Pure IR heat, no eye irritation from bright light, and optimal absorption of heat
  energy on printed sheet
• Low energy consumption
• Excellent price / durability / performance ratio

Krelus AG - Bild 5
KRELUS Drying Systems

For water-based varnishes, KRELUS offers the AIRTHERM system. This is a combination of the famous infrared dryer and a hot air system. AIRTHERM fits perfectly into almost all sheet-fed presses with extended delivery. Benefits of the AIRTHERM system include:
• Precise guidance of hot air to the varnished sheet
• Efficient varnish drying
• Continuous control of air volume and air temperature
• Various configurations available

Krelus AG Tepex Dynalite 2.8mm engl
Heating diagram for Tepex Dynalite 2.8 mm - enlarge image >>>

Krelus AG - Tepex Dynalite 1.5mm klein
Heating diagram for Tepex Dynalite 1.5 mm - enlarge image >>>

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Hotmelt lamination


Dip coating

Offset Printing  

Visit us at the K exhibition. We would be pleased to meet you on our booth (hall 3, booth E34).

Krelus AG - LogoKRELUS AG
Ausserfeldstrasse 14
CH-5036 Oberentfelden

Tel. +41-(0)62 739 30 70 
Fax +41-(0)62 739 30 89



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16.10. - 23.10.2019



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