How to choose the most cost-effective ultrasonic cleaner?

1. What do you want to clean? Before purchasing laboratory instruments and equipment, the most important thing is to find out the value needs. The same is true for the purchase of ultrasonic cleaners. Before purchasing an digital ultrasonic cleaner, consider these issues first:
(1) Appearance, size, material and quantity of cleaning materials
What material is used for the product workpiece to be cleaned? What is its shape, structure and size? How many pieces must be cleaned at a time?
(2) What dirt must be cleaned
What dirt should be removed from the product workpiece? Is it dust, grease, or pressing and stretching grease, polishing wax, carbon deposit?
(3) What ultrasonic frequency is the cleaning material suitable for?
If it is a large product workpiece with relatively low accuracy requirements, low-frequency ultrasonic can be considered. For electronic components or circuit boards, which require high precision and are afraid of damage, high-frequency ultrasonic or even megahertz ultrasonic should be selected.
(4) How long is the cleaning time?
If only the ultrasound cleaning of product workpieces is carried out occasionally and for a short time, you can buy a small ultrasonic cleaning machine with a lower price. If the ultrasonic bath cleaner is used frequently and the cleaning time is long, it is recommended to purchase an industrial or laboratory ultrasonic cleaner. This type of ultrasound cleaning machine is excellent in design and manufacturing process, and its service life is longer to ensure long-term continuous operation.

2. After the purchase key points of ultrasonic cleaning equipment have determined the demand, it is necessary to choose the products that are suitable for you according to the situation. Attention shall be paid to the following aspects:
(1) Size and material of tank
The tank material should be determined according to the chemical characteristics of the cleaning medium. The most common is SUS304 stainless steel. If the use environment is harsh, SUS316 can be selected.
The size of the tank body shall determine the minimum volume according to the overall size and quantity of the articles to be cleaned. In addition, pay attention to the mesh size of the cleaning basket. When cleaning small parts, the basket is often used because the mesh will cause ultrasonic attenuation. When the frequency is 28 khz, it is appropriate to use a mesh of more than 10 mm.
(2) Selection of power frequency band
The power of ultra sonic cleaning machine has great influence on the actual cleaning effect. The frequency of ultrasonic cleaning tank is usually within the range of 20kHz to 100kHz. It is obviously more efficient to use low frequency when using water or water cleaning solution. The conventional cleaning frequency is more 28KHZ and 40KHZ, and the relatively high frequency is only selected for the extremely small particles on the workpiece surface and the surface layer that can not be damaged. The frequency range of 40 to 60KHZ can be considered for precision washing parts.
(3) Cleaning process related functions
The cleaning method shall be determined according to the material and waste properties of the workpiece to be cleaned. The chemical components in most cleaning solutions will generally achieve the best cleaning effect at a certain temperature, so heating is indispensable. In addition, the ultrasonic cleaning equipment has the following functions related to the cleaning process: setting the ultrasonic working time, ultrasonic power, heating temperature, etc.
(4) Other functions
In addition to meeting the basic requirements, consider the selection of other functions. For example, whether there is a touch panel, whether there is a mute function, manual, semi-automatic or fully automatic, integrated or split?
Generally, manual cleaning machine is suitable for small amount cleaning operation with simple process. Semi automatic is suitable for cleaning large heavy objects or medium and large batches; Fully automatic cleaning has stable performance and obvious effect, but the equipment cost is high, which is suitable for large batch cleaning.
The integrated desktop computer is relatively small, which saves space. Multi slot ultrasound cleaners often extract the generator to keep it away from the wet cleaning environment. Multi slot ultrasonic bathtube cleaners are often tailored according to the specific conditions of the user.
(5) Selection of cleaning fluid
In addition to the ultrasonic cleaner, you need to choose your own cleaner according to the material of the workpiece to be cleaned and the characteristics of the waste. Detergents are divided into organic solvents and water-based detergents.
The cleaner shall be non-toxic and harmless, easy to operate, high cleaning efficiency and durable. The use of organic solvent cleaners often requires a continuous waste liquid recovery device.