Product category:
Machine Building Components
News Release from: Heraeus Noblelight | Subject: Water-cooled, short wave, infra-red emitter
Edited by the Engineeringtalk Editorial
Team on 10 March 2004
IR emitter heats products to 1000C in
seconds
A new water-cooled, short wave, infra-red emitter, which offers very high power densities, is now available from Heraeus Noblelight.
A new water-cooled, short wave, infra-red emitter, which offers very high power densities, is now available from Heraeus Noblelight It is particularly suitable for finishing operations which require very rapid heating and for the heating of very thin coatings
This article was originally published on Engineeringtalk on 9 Sep 2002 at 8.00am (UK)
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Heraeus Noblelight will showcase its infra-red emitters at the PaintTech exhibition in October and will also be providing the opportunity for visitors to ask questions of specialists in the field.
The new short wave emitter is based on the well-proven, Heraeus twin-tube design and features new materials and innovative water cooling, which allow very high surface power densities of up to 1.2MW/m2 to be achieved (this compares with maximum surface power densities of a few hundred kW/m2 for conventional infra-red emitters).
Because of the rapid heat-up rates, the water-cooled emitter can generate temperatures greater than 1000C in the product to be heated within seconds.
The emitter has been developed for applications in areas such as drying thin, water-based dispersions in coil coating in the steel industry, heating glazings in the manufacture of roof tiles, rapid heating of metal plates to temperatures of around 900C, applying heat and coatings under vacuum and drying varnishes on wooden boards.
Currently, the new emitters, which have an operating life of around 1500hours, are available in four models, with heated lengths of 150mm, 310mm, 530mm and 800mm and power ratings from 2.9kW to 15kW.
Other lengths and powers can be manufactured to order.
Every emitter is fitted with gold reflectors to maximise the heat radiation and can be used with all conventional voltages.
The required cooling is 2-3litres/min for emitters with heated lengths less than 500mm and 4-6litres/min for emitters with heated lengths greater than 500mm.
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