Last Friday，we delivered 25 units ultrasonic systems to belgium.
Excellent performance of ultrasonic system in medical automation.

Thanks to the stable quality of our ultrasonic systems and our professional service, the client from the United States has placed repeated orders to us.....
50 sets of the system are heading to the client in Commerce city now. 

Through the following pictures can intuitively understand how to use ultrasonic welding machine welding N95 mask.

To meet our clients' needs, we launched the DS400 series(DS300 upgrade version) ultrasonic plastic welding machine in the second half of 2020.


It is also equipped with the new generation digital ultrasonic generator and 4.3 inches touch screen, with the independent development of the operating system to achieve visual operation and control of field operations.


Here are the structural differences between DS300 and DS400.




The upgrade of processing technology makes DS400 more safe, reliable, durable, and beautiful, well received by our customers.

How to choose the frequency of the ultrasonic cleaner?
 
The ultrasonic cavitation threshold value is closely connected with its frequency. Higher frequency comes with a higher threshold value and vice versa. The lower the cavitation threshold value, the more likely the cavitation is to occur. At the low frequencies, the interval time between the compression and sparsity of the liquid is longer so that the bubbles could grow to a larger size and enhance the cavitation strength, which is good for the cleaning. Therefore, the low-frequency ultrasonic cleaning equipment is often used in the cleaning of workpieces with large surfaces, or the surface of the workpieces is disdained seriously, which might damage or corrode the surface of the workpieces. So, it is inappropriate to use a low-frequency cleaner to wash the workpieces with high demanding surface finishing. Moreover, low frequency creates more noise. In the meanwhile, high-frequency ultrasound is more penetrating, which is suitable to clean the surface of the workpiece that is more complicated and has more blind holes or has stricter requirements on the surface.







On the other hand, the high-frequency ultrasound creates less noise so it is suitable for the cleaning of some small and high precision spare parts such as electronics, miniature bearing processing or magnetic material, etc. For some special workpieces like integrated circuit chips and silicon slices with coated membrane, the ultrasound with an even higher frequency would be a better choice. For some large workpieces such as automobile engines, valves, lower-frequency ultrasound could be applied. Normally the applicable frequency is within the range of 20-130kHz considering its effect and cost.
 
This brings us a question, what aspects should be we pay attention to before purchasing one specific ultrasonic cleaner that perfectly suits your needs?
 
1. Know well of your workpieces: the workpieces material, structure, shape, size, your cleaning quantity needs, cleaning result, and the procedure after the cleaning should be well known by you.
 
2. Dirt or filth to be cleaned: to be clear of the workpieces' oil or stain types such as ram drawing oil, polishing wax, carbon deposit, dust, fingerprint, etc.
 
3. Cleaning process: choose an appropriate cleaning process according to the attribution of the workpieces and stain condition, you could consult the equipment supplier for the suggestion. The cleaning process is a very important step before manufacturing the machine. It must be well chosen for it will have a long-term cleaning effect in the future.
 
4. Manual, semi-manual, or automatic mode: manual mode is usually suitable to wash small quantity workpieces with simple operation. The semi-manual mode could be used to clean large or heavy workpieces with middle or large quantities, this could reduce labor cost and enhance cleaning efficiency. Automatic mode is suitable to clean large quantity workpieces with stable and good cleaning results, but it requires a higher budget also. Users could choose the right model according to their own budget situation and other factors.
 
5. Cleaning tank size: the size depends on the workpieces cleaning quantity, structure, cleaning time, which means that a certain quantity of workpieces needs to be cleaned at a specific time. This could be calculated easily per your own cleaning requirements.
 
6. Ultrasonic power and frequency: the cleaning agents are long-term-used consumables. The Cleaning agents are divided into organic solvents and water-based cleaning agents. The choice of the cleaning agents is decided by the workpiece’s material and stain condition. The general principle is that the dirt can be cleaned quickly and thoroughly, and the appearance of the workpiece could remain basically undamaged.
 
In simple words:
 
1. First get to know about your cleaning purpose and the best way to clean your products
2. Decide your cleaning quantity so as to choose the corresponding power and volume
3. Know about the cleaning process-consult the equipment supplier
4. choose the most appropriate supplier by making a comprehensive comparison of price, cleaning process, and after-sale service, etc.
 
Of course, K&M tech always welcomes inquires all over the world.
 
Our products: 


ultrasonic cleaner