Designed to produce samples from a wide variety of materials at precisely controlled temperatures for loss-on-ignition, calcining, and other analytical techniques
Lenton's SAF ashing furnaces have a large floor area which allows many samples to be accommodated at a time, and a low ceiling height holds the airflow close to the samples to promote burning.
Air enters at the rear of the furnace and is heated before it enters the chamber, so that samples near the inlet are not chilled.
A tall 50mm diameter chimney produces four to five air changes a minute which produces fast ashing but without disturbing fine powders.
The airflow also ensures good temperature uniformity throughout the chamber when several samples are burnt off simultaneously.
Heating is by means of durable muffle elements which have good resistance to abrasion and chemical attack.
Chamber capacity is seven litres, sufficient for 15 standard 50mm diameter crucibles.
For less critical ashing procedures, Lenton offers the AF model, which has a six litre chamber.
Both models have a maximum temperature of 1100C and can be operated continuously at 1050C.
