Promas Vibro Sifter is multi layer screening unit to separate mass composition of solids from solids, liquid from solid, and gradation of materials in accordance with their shapes & sizes. Mostly found useful for the applications in pharmaceutical, Chemical, Food, Drug, Detergent, etc.

Working Principles Promas Vibro Energy Separator is a rigid screening device that vibrates about its centre of mass. The central vertical axis being the same, vibration is accomplished by placing eccentric weights on the upper and lower ends of the motor shaft. Adjustment of the quantum and relative position of the top and bottom weights permits control of amplitude and material flow patterns as below.
Circular screen separators are unitized machines, which impart adjustable, multiplane, mechanical, vibrations to the material being processed. The basic assembly shown in the drawing consists of no. of interchangeable frames for retention of screen decks & provision of discharge outlets. A motion generator (Vibro Motor) with double extension shaft having eccentric variable weights is rigidly mounted to the main screening assembly. The assembly is supported on the circular base by specially designed springs, which allow the screen assembly to vibrate freely. The controlled vibrations generated by motion generator are isolated completely from heavy structure. The isolation of spring from support base results in a self-balancing system, which requires minimum power & avoids mechanical stress.