Busse VAR Al Plus Combination Medium Heating Plates
The Al plus heating plate is a combination of medium and electric heating plate. An aluminium electric heating plate is bonded onto the welded continuous register made of aluminium tubes for the press surface. The heating of the press is effected by the warm water from the existing heating boiler system. The electric heating is only switched on when higher temperatures are needed.
Busse medium heating plates are designed for use with liquid heating and cooling media. By using the existing resources from your own heating system, you can drastically reduce your running costs.
An absolute plus over electric heating plates is the flexibility offered by the heating with liquid media. The circulation of the medium provides for a permanent heat exchange within the heating plate. This eliminates the danger of overheating. This is an advantage when you constantly have to work with changing sizes. Particularly in the case of plate sizes over 3300 mm, the press surface is often not constructed over the entire area.
Medium heating plates consist of precision tubes welded to a continuous register. Since the tubes conducting the heating media are spaced close together, they produce an even surface temperature. The spaces between are filled with reactance tubes. Depending on the design, aluminum sheets are either screwed onto or bonded to the press surface and the back.
The use of square tubes achieves a greater volume within the heating plate. This results in higher flow rates for the heating media. This in turn leads to a better temperature distribution in comparison with other systems. These heating systems available on the market are composed of several types of metal. The result is a significantly higher number of welded or soldered connections – and therefore more risks as regards tightness.