Select ultrasonic cleaning machine according to the size of capacity, which is divided into large ultrasonic cleaning machine, medium ultrasonic cleaning machine and small ultrasonic cleaning machine. The capacity ranges from 4 milliliters to several hundred liters. The size of the capacity determines the application area of the ultrasonic cleaning machine. The capacity required by a company in an industrial zone is entirely dependent on the company's scale and the development direction of the application area. For instance, if I work in a hardware company, the capacity of the ultrasonic cleaning machine I need depends entirely on the size of the parts. If we narrow down the scope and start from the stainless steel parts of the hardware, then a large ultrasonic cleaning machine is required to clean the parts. It is not only necessary to look at the cleaning effect, but also to see whether the cleaning machine is suitable for cleaning the stainless steel parts of the hardware. This is very important! The analysis of capacity should be based on the analysis of the products required by the enterprise to draw a conclusion: quality determines quantity, and capacity determines the amount of cleaning. Therefore, the amount of cleaning determines the overall quality, and the continuous connection among them is closely linked. If we analyze from the lyrics of Zhuge Liang:" After a long period of unity, there will be division; after a long period of division, there will be unity. Errors between the cleaning volume, quantity and overall quality must not occur repeatedly! For a business to develop, the first step is to analyze the current development needs of the enterprise and draw supply and demand information from those needs!