Because of the hygroscopic characteristic of the used ceramic insulation materials they absorb moisture. Therefore we send our Hot-/Microcoils heating elements usually in air-tightly closed plastic bags. If the bags are opened and the heating elements are not used at once, we recommend repack the elements air-tightly. It is absolutely important to check the insulation resistance before use and – if necessary – to dry the elements (controlled start-up or drying oven).
Elements which are bent once, must not be altered anymore. The connection area as well as the first 5 mm unheated area must not be deformed at all.
The temperature stress of max. 750 °C on the tube is not valid for the connection area nor brazed heating elements (e.g. HotMicroCoil with Reflection Tube) The latter must not be operated at temperatures higher than 600 °C as this could fuse the braze. The temperatures arising in the connection area determine decisively the suitability of the available terminations.
The stated nominal voltage must not be exceeded, otherwise overheat is risked.
Generally it can be said: the better heat is carried off, or flows into the work piece respectively, the higher the surface watt density on the sheath can be.
A too slag fit obstructs the heat conduction and leads to heat accumulation that could overheat and eventually destroy the heater.
In every practice application there are working and environmental parameters which cannot be calculated exactly in theory. That is why we recommend generally to test HotMicroCoil elements in the application under real working conditions before series use.
No warranty claims can be derived from these user instructions.
Chapter HotMicroCoil Heating Elements
Precise power distribution, flexible design: Nozzle heaters mainly for the plastic industry. We produce HotMicroCoils according to your specifications, including dimensions, winding pattern and power.
Inquiry Form HotMicroCoil Heating Elements
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