BLF bottom loading furnaces use an electrically operated elevator hearth, which as it rises into the furnace chamber, lifts the load into the heated zone.

This furnace provides the following advantages: easy loading of samples and uniform heating achieved by locating elements in all six side walls of the chamber.

Instructions

For improved insulation and element life it is recommended to heat and cool at a slow ramp rate e.g. 5 °C/minute, and to avoid opening the door at high temperatures.

The furnace is not recommended for burning off carbonaceous materials. Other Carbolite Gero furnaces are available for this application. 

In oxidising atmospheres, metal oxides react with the silica layer on the surface of the elements and may lead to premature failure. Protect the elements from splashes of molten metal and dust when loading the furnace and from fumes developed when melting, especially from fluxes. Also avoid compounds with a high alkali content.