The balancing machine rotor reference symbol is an emblem attached to the rotor shaft, which gives the rotor surfaces with varying reflectivity or undulations. This allows the key phase sensor to collect mechanical signals that change with each revolution of the rotor. These signals are then converted into electrical pulse signals, providing signals for the rotation speed and vibration of the rotor surface. The reference symbol for the rotor rotation can be formed by attaching reflective stickers, drilling holes, cutting grooves, or creating bosses on the rotor shaft.

Assuming a rotating object has achieved a positive balance, it means the mass distribution is uniform, and under the effect of this uniform force, oscillation will not occur. In other words, any imbalance will lead to oscillation. At this point, human intervention is required to control the oscillation within an allowable small range. This can be achieved by attaching reflective films, drilling holes, creating slots, or forming bosses on the rotor shaft to establish a reference symbol for the rotor's rotation. Excessive noise from air conditioners, rapid wear or unusual vibration of truck hubs, brake discs, drive shafts, and clutches, or excessive oscillation during motor surging can largely be attributed to the imbalance of the rotor.

Excessive noise from air conditioners, rapid wear on truck hubs, brake discs, drive shafts, and clutches, or abnormal vibrations, and excessive vibration during motor surges can largely be attributed to unbalanced rotors. Cast aluminum rotors have excellent adhesion and excellent insulation properties (F-grade, 170°C, rotors under 30,000 RPM). The putty can cure quickly at room temperature. After more than 90 years, with the continuous development of technology, Zhuoxuanjin established an intelligent dynamic balancing machine production base in Guangzhou. It also completed a fully automated process, setting a precedent for the development of the dynamic balancing machine industry.