Vibration Reduction through Centrifugal Fan Balancing in Painting Line Manufacturing

In the context of predictive maintenance, vibration analysis provides insight into the condition of rotating components by interpreting vibration amplitude and frequency characteristics. This helps maintenance professionals identify and classify damage before it reaches critical levels. According to ISO 10816, vibration severity can be systematically evaluated to determine whether a machine is operating within acceptable limits. This study successfully investigated and resolved high vibration levels in a rigid-mounted centrifugal fan used in a cement plant. Initial vibration measurements revealed critical levels of unbalance and misalignment, with horizontal amplitudes as high as 7.50 mm/s at the vertical fan drive far exceeding ISO 10816 acceptable limits. A structured static balancing procedure was then conducted using trial weights (5 g, 17 g, and 20 g), with the 5 g weight yielding the most stable response.