If there is material deviation during the screening process of the vibrating screen, it will affect the screening efficiency and accuracy. The reasons for the deviation of the vibrating screen material are as follows:

　　The stiffness and height of the supporting spring are inconsistent, and the damping spring plays a crucial role in maintaining the stability and balance of the vibrating screen. If the spring is damaged or loses elasticity, it should be replaced in a timely manner.

　　The two eccentric blocks are not in the same phase, resulting in uneven excitation force on both sides of the screening machine, causing torsional vibration. To ensure that the eccentric blocks are in the same phase.

　　Uneven feeding during the production process can cause significant force deviation due to uneven feeding quantity, resulting in material deviation. Therefore, uniform feeding should be applied.

　　The stiffness of the sieve plate or frame is insufficient, causing the sieve box to twist. It is recommended to use a sieve plate with stronger stiffness.

　　5. The vibrating screen is unbalanced. To check if the installation ground is level, ensure that the vibrating screen is level with the ground when installing it.

　　Regular inspections and timely maintenance can ensure the service life of the vibrating screen, enabling it to operate efficiently and with high quality.