As the core component of a vibrating screen, the vibrator generates a specific form of excitation force to drive the screen box to vibrate, achieving efficient screening of materials. This article begins with the working principle of the vibrator and systematically introduces its main types, including the structural characteristics and application scenarios of inertial vibrators (single-axis and dual-axis), vibration motors, and electromagnetic vibrators. It also details methods for adjusting the excitation force and key points for daily maintenance to help users improve equipment operating efficiency and service life. This article provides a comprehensive understanding of the key technologies of vibrators for designers, operators, and maintenance engineers of screening equipment.