Two key precision indicators of the dynamic balancing machine: the minimum reachable residual unbalance and the unbalance reduction rate. Whether it is a horizontal dynamic balance machine or a vertical dynamic balance machine, double-sided correction or single-sided correction, it should be used in the standard. The specified calibration rotor and the specified calibration method and procedure are used for new product identification and verification of batch products before shipment.
The quality of the proof rotor should be less than 1/3 of the range of mass balance allowed by the balancing machine. For soft-supported dynamic balancing machines, it is recommended to use a check rotor with a mass close to the lower limit of the allowable balance mass range when working close to the lower limit of the allowable balance rotor mass range. The balancing ability of the machine is checked within the equilibrium mass range where the parasitic mass of the support has a significant effect on the experimental results.
The speed of the test machine is the minimum speed specified by the manufacturing unit for the quality of the selected test rotor. If the manufacturing unit agrees with the user, the maximum speed specified for the heaviest rotor can also be selected.
For a single-sided corrected vertical dynamic balancing machine, the unbalanced coupler interference ratio is also verified. For the horizontal dynamic balancing machine capable of balancing the rotor, it is also necessary to use the combined overhanging verification rotor for the verification of the above two precision indexes.