Rugged structure using heavy side frame to ensure vibration free running the the machine at high speed, Impression Rubber Rollers are made from Neoprene Rubber with 50 to 55 hardness, plus additional bearings provided inside Hub for wobble free shaft rotation. Lockouts with pneumatic control.Winding and Unwinding balanced shafts from EN 31 plus hard steel with cones and locknuts assembly.