Surface heating elements - Import export

HotMicroCoils have an exceptional capacity for being shaped - even in three dimensions. Many special winding patterns and geometries apart from the purely cylindrical are thus possible, allowing heating close to the contours of all manner of surfaces. Applications include hot runner manifolds, heating plates and hot die stamps. The shaped heating elements thus obtained can be used in two principal ways: either placed over the surface to be heated (firmly bonded by soldering, force-fitted, pressed or otherwise appropriately joined) or pressed into a positive fit in grooves in the surface to be heated. The second of these alternatives is also becoming more widely accepted in plastics processing, as it offers the best heat transfer because the heating area is the greatest (see also Freek Heat Transfer System). Since not all our customers have the necessary equipment and experience to press the HotMicroCoil elements into the contours of the surfaces, Freek also offers this as a service.

Ceramic Insulated (Band) Heaters are predestined for high-temperature applications beyond 450 °C, for example for pipe heating in process heat technology, especially when gases are involved. Ceramic insulated sectional surface heating elements are also brought into action where a heat storage capacity is needed, as in hot plates the case. With the heating surface of ceramic flat heaters being composed by small-limbed ceramic elements with aligned holes in the centre for the resistance coils to be fed through, ceramic sectional heating mats are also applicable for bent or cylindric surfaces. Like Micanite insulated flat heating elements also Ceramic insulated elements can receive a metal sheath. The latter provides additional protection against mechanical load and allows for attaching connection boxes. Another advantage is the easy installation by means of mounting holes in the metal cladding.

Silicone heaters and Kapton heaters are preferred surface heating elements for laboratory equipment and medical technology due to their easy handling and variety of shapes. Like Kapton polyimide heating foils, silicone heaters are resistant to continuous temperatures of up to 200 °C, with self-adhesive foil up to 180 °C. When designing silicone heaters and Kapton foil heaters, the designer has almost unlimited degrees of freedom. This applies to the minimum and maximum dimensions, which are set within wide limits, as well as to contours and recesses, holes and feed-throughs of any kind. The good shape flexibility of silicone heating mats and foils as well as Kapton polyimide heaters also enables the heating of cylindrical, conical or rounded surfaces. The resistance of polyimides to fungi, bacteria, ozone, weather, ageing and most chemicals, acids and solvents is very good, making polyimide (Kapton) heaters an ideal solution for many critical applications.

Micanite is a kind of insulation paper which is impregnated with a heat resistant binder and afterwards pressed in several shifts under heat and high pressure to plates. This material is heat resistant up to 350 °C, as special construction (Phlogopit) up to 450 °C, and is used for the wire wound formers as well as for the encapsulating cover plates of mica surface heaters. Because of the typical "sandwich"-construction of Micanite Flat Heating Elements and their high watt density it is necessary to use a platen to press the mica heater onto the surface to be heated. Established on the market for round Flat Heating Elements are some standard dimensions (Ø 58 / Ø 65 / Ø 80 / Ø 100 / Ø 160 / Ø 260 mm). But normally Micanite Surface Heating Elements are constructed on customer's request. Mica heaters can be metal sheathed for higher mechanical stability. This makes the heater flexible, so that it is also possible to build a band heater.

With the new EMX model range of electric steam boilers, CERTUSS offers you twice the steam output as before with a significantly smaller footprint. Electric steam generators from CERTUSS are heated by stainless steel heating rods with a large heating surface. The output of the heating elements is regulated continuously via semiconductor contactors. One energy-efficient advantage is the immediate modulating output adjustment to the actual steam demand during the operating cycle. For greater steam demand of up to 640 kg/h or fluctuating steam loads, several ELECTRO steam generators can be cascaded in series. Multiple systems like this are an especially economical solution. Our compact electric steam systems feature built-in feed water tanks and feed water pumps. They require very little space and have a short heat-up time. Steam systems are also available as a unit with water conditioning equipment installed at the factory.

Screw-in heaters are versatile and intended for heating liquid media in industrial and commercial applications. When selecting, the specific surface load permitted for the respective medium must be observed and checked by the customer. EHK G1 1/2 are mainly used to heat water and aqueous solutions. 3 tubular heating elements ø 8,5mm made of stainless steel 1.4404 resp. Incoloy 825 brazed in G1 1/2″ thread made of brass (lead free) or stainless steel. Connection to 230/400 V3 (N), rotatable stainless steel terminal box. Use e.g. in washing machines, dishwashers, tempering equipment, laboratory equipment. The heaters are also suitable for water heating with photovoltaics, primarily the EHK G1128xxx series. Combination with all common PV controls possible, stepless power output. Type EHK G112-A with built-in thermostat 0-95°C Type EHK G112-AB with built-in thermostat/limiter 30-80°C / 100°C Type EHK G112-U without integrated control unit