These are laboratory tube furnaces upto temperature of 1500'C. For High Temperature (upto 2200'C) and High Vacuum (10-3 mm of Hg) we import such furnaces from our principals in USA.
These furnaces are used in laboratory or factory shops for various applications.
Bogie Hearth Furnace
These type of furnaces are in use for batch type operations where big size charging materials are to be loaded through overhead cranes or forklifts, necessitating the hearth to come out for loading and unloading operations.