S.S. scroll has high strenth and thin thikness as it has a low moment of inertia and low runout values thus preferred. 2 start / 4 start 8 start available here 3500 mm in lenth and 60 mm – 200 mm diameter with 2 to 4 mm wall thickness range 5 mm thickness S.S 30HQ / 316A round profile wire of V profile as standrad and custom sizes according to the demands of our custmors, live-shaft or dead-shaft rollers can be produced with radial runout tolerance up to 0.5 mm.