Compact palletizer VJExtuder-Labmini

automaticfor the pharmaceutical industry

Die Roller Extruder as two rollers one is perforated and the second is knurling roller both are horizontally placed with minimum gap of 0.3mm. Material is charged in the hopper manually, hopper consist of drum and blade provision attached to the motor it rotates and drives the material into the feeding hopper in between the rollers and due to the pressing nature material comes out from the perforation and we get extrudes. Application: The function of a spheronizer is to convert extrudes into spheroids. Spheronization is the necessary second step of granulation by extrusion – spheronization process where pharmaceutical products are made into small spheres or spheroids. Spheronizer consists of a plate, which is having a special cross-hatched groves, known as chequered plate. This plate rotates inside a cylindrical bowl. The radial clearance between the plate and the bowl is kept minimal (<0.3 mm) to reduce the powder leakage. Purging air is supplied in this gap to prevent the falling of powder beneath the chequered plate. This air also helps for the evaporation of excess moisture from extrude and prevent particle agglomeration. While rotating in the grooved plate with pre-desired groove size, the vermicelli will fragment into pieces with length equal to the diameter of extrudes. Broken extrudes, because of the tangential force and centrifugal force, collide with the cylindrical wall of the spheronizer. The rotating rope type movement of extrudes at the outer border of the bowl gives a rolling action on the fragmented extrudes and it will be converted to spheres.