Pharmatech Engineers Pvt. Ltd. Manufactures Single or Double Deck Vibro Sifter. Pharmatech Engineers Pvt. Ltd or Sehgal Industrial Works manufactures Pharmaceutical & Chemical Equipments. The Single or Double Deck Vibro Sifter uses Gyratory Motion to gradation and separation of powder, granules, etc. It provides vibration on both horizontal and vertical axis. Here vibration can be adjusted according to requirement. This Single or Double Deck Vibro Sifter is available with interchangeable S.S. Screens.