Also referred to as : injection screw, injection box, moisture, steam

The equipment consist of an inlet chute, which receives the metered product, and a spiral which transfers it to the injection point. The motor power and the spiral section are over-dimensioned to reduce the strengths created by the moisture.

In operation, the moisture or steam are caught by product buckling created by the spiral. The spiral cleans by itself eventual crust. When the installation stops, the injector runs until it is empty thanks to a timer. At the restart the spiral will crush and eject any material residue solidification.