Double walled chamber outer chamber made of cold rolled mild steel sheets and finished in powder coating. The inner chamber is formed by high alumina re-crystallized tube capable of withstanding temperature up to 1100ÂșC. The tube will have both ends opened. Insulation with high density superior quality ceramic fibre blanket. The furnace is heated by super Kanthal and controlled by a digital controller cum indicator. The Instrument will also be supplied with end fitting for gas purging.