Granulation & Pelletizing Equipment and Systems

The gravimetric extrusion-spheronization system combines a vertical rotary extruder and a centrifugal spheronizer with automated feed rate control for stable, continuous pellet production. The process begins with pre-mixed wet granules fed from the auxiliary hopper into the screw feeder. The material is evenly delivered into the vertical rotary extruder, where it is pressed and extruded through perforated screens to form short cylindrical extrudates. These extrudates fall by gravity into the intermediate timing hopper, which periodically releases batches into the spheronization chamber. Inside the centrifugal spheronizer, mechanical forces including centrifugal motion, shearing, and friction transform the cylinders into smooth, uniformly sized spheres, which are then discharged through the pneumatic outlet valve.