Our calcination kiln is a rotary kiln and can be sized and manufactured at the values calculated according to the capacity needs as required by the customer. It consists of a calcination unit feeding bunker, weighing belt, burner, firebox, mixing zone, input-output extractors, air ducts, cyclone, system fan and transmission line machines. The temperature in this unit reaches a value between 800-1200°C to reduce the crystal water (-20) in the gypsum, which is crushed to 0-10mm grain size, to the required humidity content (4-6%) in order to produce plaster known as base plaster. With the feeding bunker, which is the first equipment of the kiln unit, and the weighing line, the hourly capacity of the product to be fed to the calcination kiln is adjusted according to the required capacity and the quantity of the product fed to the kiln is kept constant. The burner and firebox produce the required heat for the system. The required fuel and air quantity is controlled with the proportional controller. Specially-designed star and blade systems blend the product in the kiln and facilitate its movement along the kiln line. Micronized products (max. 200g/Nm3) moving with the air flow in the system by the help of the kiln cyclone are recovered by the system. The product recovered for the system at the filter is realized as a maximum of 50g/Nm3. Our kilns are produced according to engineering calculations; the kiln height, diameter, length, required air quantity, filtration area and interior structures are designed according to product type, grain size, and feeding capacity. Rings, galleys, and gears vary according to the filled load of the kiln. These are processed upon casting and brought to the suitable rigidity with heat treatment.