Specific Engineering & Automats manufactures Interchangeable Segmented Screw Elements. Specific Engineering & Automats is an ISO 9002 certified company offering a wide range of extruders, screen changers, feeders and kneader machinery. The Interchangeable Segmented Screw Elements are made from Vacuum Hardened, Plasma Nitrided and Cryogenic treated steel in ground finish and finds application in diverse industrial sectors. The Interchangeable Segmented Screw Elements are of different pitch and shape for feeding, conveying mixing kneading and reverse pumping, Spline and Key slot.