Ashing furnaces

Compare ASHING FURNACES. Burn off or ashing furnaces are similar in construction to bench furnaces. Ashing furnaces have either a front lift up door or a front drop down door. An ashing furnace draws in air and preheat it so there is no significant cooling of the sample. This air is then pulled across the sample to remove the vapors created during the ashing process. The vapors then leave the furnace through a chimney.

Ashing furnaces are typically used for burn off of coal samples, quality control in the food industry, and analysis of materials for the determination of the content of metals and other inorganic materials by the ashing process.

The ashing furnaces listed here range in size from 10 liter (1/3 cu ft) to 1400 liter (49 cu ft). This is a broad range for laboratory or small production needs. The burn off (ashing) temperature ranges from 1000 C (1830 F) to 1500 C (2730 F). This meets most small ashing furnace requirements.