Drop-bottom furnaces are used for solution annealing and subsequent rapid quenching of aluminum alloys. In particular, with thin-walled aluminum components, quench delay times of just five seconds from when the door begins to open until complete immersion in the quench tank are possible depending on the plant concept and size. Generally, these requirements can be met only with this furnace design. The drop-bottom furnace stands on a base so that a quench tank can be positioned directly below the furnace. For the quenching process, the door moves horizontally to the side and a basket containing the components is lowered into the quench tank by means of a lifting device that is integrated in the furnace. The conveying technology can be controlled automatically or semi-automatically. Ageing Oven and quench tank with required agitation makes this industrial furnace as the best equipment for aluminum and aerospace industries. Quenching delay seconds will be achieved in 7 to 10 sec.

Because of the broad working temperature range, drop-bottom furnace plants allow complete heat treatments, consisting of solution annealing, quenching, and artificial aging in just one furnace. If required, the artificial aging can also take place in a separate furnace outside the system.