Ashing furnaces, AAF series

The AAF range of ashing furnaces are ideal for ashing materials such as food, plastics, coal and other hydrocarbons, in which high volumes of fumes are generated. Smoke and fumes are removed by a constant airflow (of between 4 and 5 volume changes per minute) created by convection between the air inlet and the tall chimney, however it is not too high to disturb samples in the crucibles, or chill them as the incoming air is preheated.

The element and insulation design preheat the airflow to ensure consistent uniformity throughout the chamber and the elements are protected from chemical and mechanical damage by a high quality hard wearing lining.

: Supplied as standard with a type 301 PID digital temperature controller with single ramp. Alternatively a choice of multi-segment programmers are available. Note that furnaces are supplied without plugs and should be hardwired at position of use. The 3 litre model requires 230 V single phase, 7 litre model requires 230 V single phase or can alternatively be supplied with 415 V two phase (of three phase) supply at extra charge. The 18 litre unit requires 230 V single phase or 415 V three phase supply, and can be reconfigured on site to single or three phase 'universal' power supply.

: Note: Maximum continuous operating temperature should be 100 °C below the max. temp. of the model shown above.