The specific division of ultrasonic cell crushing apparatuses is as follows:
1. According to the power classification, the power of ultrasonic cell crushing apparatuses is the index customers. It determines the quantity, size, quality and effect of the broken objects. Therefore, manufacturers attach great importance to this index. In general, the power used by laboratories, laboratories, research institutes, drug inspection institutes and other scientific research institutions is not large (generally below 500W); while the power used by biological companies, pharmaceutical factories, chemical enterprises and other production units is mostly around 500W-2000W. Due to the different product structure of each manufacturer, the marking method of its power is also different. However, according to the common practice of users, there are generally the following types: 50W, 100W, 150W, 250W, 300W, 350W, 500W, 1000W, 2000W. Generally, the output power of high intensity ultrasonic processor can be adjusted appropriately according to the needs. The rated working frequency of the standard ultrasonic cell grinder product is 20 kHz. Some ultrasonic cell pulverizers have an automatic tuning function, which can make the frequency change in a small range.
2. According to the diameter of tip, it is necessary to select ultrasonic cell crushing apparatuses of different "tips" to deal with samples without volume. Due to the different product structure of each manufacturer, the diameter of tip is different. Generally, "tip" head ranges from 5mm (suitable for 1ml treatment capacity) to 25mm (suitable for 1000ml treatment capacity). With continuous flow probe, the processing capacity can reach 80 l / h. Replaceable "tip" heads are used in high energy applications where wear may occur. When the energy is transferred through the tip, corrosion occurs where the metal surface leaves traces. As time goes on, there will be slight corrosion spots where corrosion occurs. "Tip" head can be sanded with sandpaper or gauze, unless it is damaged to a certain extent; when this happens, "tip" head will be difficult to tune the frequency, instead, it may produce long and sharp noise, and eventually crack. There are two main factors that need to be considered in order to process a given dose of sample effectively: "tip" head size and output power. These two factors must be matched at the same time to get the best results. If the power is small, "tip" head is large, then "tip" head cannot work; if the power is too large, then "tip" head may be damaged. Please pay attention to the model accessories when purchasing.
The ultrasonic cell crushing apparatuses make use of the dispersing effect of ultrasonic wave in the liquid to make the liquid cavitation, so as to break the solid particles or cell tissue in the liquid. The conventional use method is to put the material to be broken into the beaker, then turn on the power supply to set the time (vibration time and intermittent time), and put the probe of the crusher into the material. In use, the ultrasonic generator circuit converts 50 / 60Hz power supply into 18-21khz high-frequency and high-voltage power, so a large amount of heat will be produced in the process of crushing, which is generally broken in the ice bath.