AIR LOCK An airlock, also known as an eclus, is a mechanical device with a finned structure, whichis generally used in pneumatic transfer systems (pressure and vacuum) to separate the product in the form of powder or granules and the air. It is widely used especially under filters and cyclones. While diameter and rotation speed determine the capacity of the device, blade tolerances are the most important factors that determine the efficiency of the equipment. In addition, it is also used as an airlock, doser, and proportional unloader at the bottom of the silo. It mixes the product and the air and separates the product and the compressed air from each other by taking advantage of the gravitational force. It can work with different blade structures, tolerances and rotational speeds, depending on the type of process and the type of product to be used in the process. In the same way, it can act as a crusher depending on the characteristics of the material to be transported.