Tension leveller equipment is notorious for its ability to spoil the surface appearance of steel and aluminium strip that has been successfully rolled through the mills with a high quality, unmarked surface. UNIVIB can supply its AVAS vibration monitoring system configured for application to tension levelling and flattening machinery and other post-rolling processing equipment to ensure that chatter and other unwanted vibrations occurring while levelling or flattening the strip are avoided and that the finished product is free of leveller chatter or other regular banding.