A separate plunger disc and shaft let the disc deform outward and expand the collar, improving billet force transfer at higher extrusion pressure.
A separate elastic plunger disc and shrink-fitted collar improve billet force transfer, reduce jamming, and support higher extrusion pressures.
Rubber bulge forming expands selected hollow extruded sections to improve mating-surface accuracy without costly post-extrusion machining.
A floating bearing between the motor drive and press module absorbs transverse forces, reducing oscillations and improving extrusion uniformity.
A rotatable sealing ring and conical filler piece let the extrusion plate mount from the front while reducing wear, stress, and air inclusion.
An expansion dummy block uses elastic deformation to seal against the container and mandrel during extrusion.
A second tool head pushes shell remnants from a block holder to ensure reliable removal.