Process flow: (1) After installing the equipment, use a liquid pump to inject the solvent into the cleaning tank. (2) Manually place the workpiece into the cleaning material frame, then place it into the ultrasonic coarse washing tank and turn on the ultrasonic cleaning control knob to perform ultrasonic cleaning. After the ultrasonic rough washing is completed, manually remove the material frame and put it into the second and third tanks for ultrasonic fine washing and ultrasonic rinsing in sequence. After the workpiece is cleaned, it is manually removed and the material frame containing the workpiece is placed in four slots (drying slots). The drying method uses compressed air to quickly dry the workpiece. (5) After the workpiece is dried, it is manually removed and cut.