If this happens to your extrudeuse à grains, handle it as follows:

(1)Feedstock is too fast and material discharging is not smoothly or clogged. Control the feeding rate and feeding amount, and readjust the distance between the discharging screw and taper screw at shaft end.

(2)Screw head and pressure ring are assembled improperly.Reassemble after inspection and replace extrusion chamber.