How to Adjust Balance?

Balancing adjustment is a critical process that makes a part more stable by correcting its mass unbalance. This procedure consists of two main stages: measurement and correction. First, the part to be balanced is placed on a balancing machine and rotated. The machine's sensitive sensors detect the vibrations that occur during the part's rotation and use this data to calculate the exact amount of unbalance (in weight) and its angular position. This stage is vital for determining where and how much unbalance is present in the part.

After the measurement stage, the correction stage begins. In this stage, one of two main methods is used to correct the unbalance: adding weight or removing weight. Based on the calculated data, an appropriate weight is either added directly opposite the area of unbalance (e.g., with welding, bolts, or adhesive) or material is removed from the area of unbalance (e.g., with drilling or milling). This process minimizes vibrations by bringing the part's center of gravity into alignment with its axis of rotation. After the correction is completed, the part is tested again, and this cycle is repeated until the residual unbalance falls to within acceptable tolerance levels. Advanced software like iBalancer, used by MBS Balance, makes this process faster and more precise.

The engineering essence of the correction stage is the vectorial solution: the machine applies a correction of the calculated amount at exactly the opposite angle to the unbalance vector it measured. If weight can only be placed at certain fixed positions (blade, bolt hole), this vector is split into its components at two neighboring positions. In the material-removal method, the mass to be removed is converted into hole diameter and depth; making the correction at the largest radius reduces the amount of material required.

After each correction, a verification (check) run is made and it is checked whether the residual vector enters the tolerance circle; if not, a second step is applied with the new amount and angle the machine shows. The process is complete when the unbalance falls within the tolerance and the machine's Umar limit. MBS Balance's iBalancer software shows the residual vector and the next step in real time and reports the result, providing a correction process that is both fast and traceable.