Used for separating air and grain at vertical and horizontal pneumatic carriage between floors. It runs coupled with cyclone or with filter. The cast body and the rotor were processed sensitively and they were adopted to the part assembling point conditions. They were designed as they are going to protect the air leakage in minimum level. The air lock located under the cyclone prevents the air leakage into the plansifter and provides the prodcut completely discharging from the system. The air lock and cyclone provides the separating of the product in the pneumatic system. The cast body and the rotor were processed sensitively and they were adopted to the part assembling point conditions. They were designed as they are going to protect the air leakage in minimum level. If the product transferred pneumatically is sent as tangent to cyclone, the air loses its speed as the result of cross section expansion. Air leaves the system from discharging pipe after frees the product into machine.