Stamped Foil and Stamped Foil with air (SF and SFA) medium wave infrared heaters are highly efficient fast response heaters suitable for a wide variety of industrial process heating applications.
Rugged stamped foil element strips are mounted on a high temperature insulation board. The energy freely radiates to the product without any quartz or ceramic to block the energy. This allows a 90% conversion of electrical power input to useable radiant output, eliminates thermal lag for very tight process control, and minimizes stored heat which causes damage to products on shutdown.
Type SFA heaters include air jets in between the rows of elements which provide air impingement to assist in drying and provide instant cooling on shutdown.
Anderson Thermal Devices’ panel heaters are ruggedly constructed with no glass or quartz they can last for up to 20,000 hours and can be easily repaired.
SF and SFA heaters have a peak wavelength of 2 microns they can be designed for up to 60 watts per square inch. The heater modules can be mounted in any orientation and they are available with multiple zones within a module. The SF and SFA heat up and cool down in 10 to 20 seconds and can be equipped with Type K thermocouples or a non-contact pyrometer. Multiple heat zones can be built into a panel heater.
Quartz fabric Faced Heaters (QF heaters) are an economical and rugged heater with quartz fabric as the radiating face of the heater. The elements are right behind the quartz fabric which is laminated to a 1” thick refractory material. The heater has 3” deep aluminized steel housing and has mounting studs and a junction box in the back. The QF element temperature is 815 ° C (1500°F) and has a peak wavelength of 2.6 microns. The QH Panel Heater has a maximum watt density of 25 watts per inch, takes 5 – 7 minutes to reach maximum temperature and uses a Type K thermocouple control.
Panel heaters are very versatile. They are used in many industries including the printing industry, the paint and powder coating industry. blow molding and plastic thermoforming, and glass industries.