TOP HAT AND ELEVATOR
Periodic furnaces without door, where the seal is made with the bottom furnace / furnace car.
• ELEVATOR - furnace is on a higher level and furnace car lifts/rises to seal with the furnace.
• TOP HAT - furnace car is on the floor/ground level and the furnace comes down to seal with the furnace car.
The lifting system may be electromechanical or hydraulic.
This type of furnace has as great advantage a greater control of the atmosphere and pressure tightness. These solutions are typically designed according to the needs of the treatment type, using temperatures up to 1300ºC.
Fiber insulation and other commonly used low thermal mass materials allow easily fast or slow cycles according to the treatment characteristics.