Chamber furnaces are used for batch type operations. Components can be directly kept for heat treating, or trays and fixtures can be provided as well. These furnaces can operate up to 1900°C. They can be of rugged, refractory based construction or lightweight ceramic fiber board and insulation based construction. Heating elements could be Ferrous-Alumel-Chromel alloys, nichrome, silicon carbide or molybdenum disilicide depending on the temperature and process; and could be in the form of single or bundled wires, rods, wound coils, strips. If silicon carbide, they can be spiral or circular rods, and molybdenum di-silicide heating elements can be U-shaped or W-shaped profile. These furnaces can be used for hardening, annealing, normalizing, sintering, tempering, stress relieving, pre-heating etc. The entire range, size and temperature can be determined by your individual need and requirement. Top opening and multi-chamber furnaces are also made to order.