Shamam Engineering Industries offers Positive Drive Compactor Storage System. Shamam Engineering Industries supplies a wide range of mechanical operated tube bending machines and vertical storage systems. The Positive Drive Compactor Storage System works on Inverted rack and pinion concept where a chain is laid parallel to rail and the drive sprocket runs in it thereby giving push to the compactor in the centre without any slip. The Positive Drive Compactor Storage System is used for safely storing a wide range of materials in large quantities.