Petrosaman Company performs the granulation process using a conventional method. The company granulates graphite powders below 0.2mm by making special rotating disk granulation machines semi-horizontally and using special adhesives. The produced material is then returned to the grinding stage and granulated. In this method, grains of larger than 8 mm can be reached.

Another common method used by this company is the rotary granulator. In this method, as shown in the picture above, a long rotary tube with the edges arranged inside it, rotated with a negative slope, the powder can be granulated by spraying glue inside it.