The APE Vibro Sifter machine works on the principle of gyratory vibrations. According to the size of the particles, the material is separated. When the motor is turned on, vibration in the screen or sieve causes the material to move across the sieves in accordance with its particle size.

Utilizing a specifically created vibratory motor that satisfies varied output criteria, the development of vibration along the vertical axis is achieved in three different planes. It creates a 100% rotating motion, dispersion, stirring, stratification, and sifting of the material. On the vibro screen, feed material moves horizontally while following a loop pattern.