Cleaning and washing hard-to-reach parts of car parts such as gearboxes is one of the most difficult challenges faced by repairmen. In order to overcome these challenges, one of the most practical means is to use the power of ultrasonic waves in the water environment. In this washing method, parts are immersed in the tank of the machine, which contains water and a small percentage of detergent, and after 5 to 30 minutes, the washed and clean parts are removed from the machine. In this washing method, the most important advantage is energy penetration and cleaning of hard-to-reach parts. The working method of ultrasonic systems is that parts are immersed in tanks filled with water and cleaning materials, and after setting the washing time and temperature by the operator, the washing operation is carried out without human intervention. In such a way that right from the moment the parts are placed in the ultrasonic bath, a large amount of contamination is quickly removed from the part. In the above video, the performance of the ultrasonic cleaning system of the ultrasonic cleaner manufactured by Farasout Sanat Company, known as the AUTO LIFT PRO series, has been demonstrated. The above ultrasonic bath with a capacity of 600 liters and equipped with an automatic parts loading and unloading system, a parts oscillator system, full control of ultrasonic energy and a PLC controller system, is one of the most up-to-date and complete machines for washing parts and industrial equipment.