Difference between vacuum generator and jet pump

The "micro vacuum pump" and the "vacuum generator" are two different devices. The main difference is that a miniature vacuum pump uses electricity, while a vacuum generator uses compressed air to create a vacuum. In the place where there is compressed air, it is good to use vacuum generator to get vacuum, while in the place where there is no compressed air, it is more convenient to use miniature vacuum pump to get vacuum, and no one will use air compressor with vacuum generator specifically for the purpose of getting this vacuum. Our vacuum pumps are very miniature, oil-free and maintenance-free, and are mainly used in small or pocket-sized instruments and equipments. Chengdu Qihai Electromechanical Manufacturing Co., Ltd. is a professional manufacturer of high-end miniature vacuum pumps, miniature air pumps, etc. Our products are widely used in industrial automation equipment such as robots, chip adsorption devices, printing machines and so on. There are many equipment manufacturers all over the country who cooperate with us all the year round, purchasing miniature vacuum pumps in bulk and vacuum suction cups for adsorption of goods. The following models are most frequently used: Model Adsorption force per square centimeter* (Kg) (theoretical value) Flow rate (L/min) Remarks PK5008 0.5 8 PC4020N 0.6 20 PC3025N 0.7 25 VCA5038B 0.5 38 VCH1028 0.9 28 The data in the above table of "adsorption force" is in the complete absence of the chip adsorption device, printing machinery and other industrial automation equipment. The "adsorption force" data in the above table is the value of the adsorption force per square centimeter of the area of the suction cup after the pump is evacuated in the absence of any air leakage (almost impossible). In general, there is more or less air leakage between the item and the suction cup. The airtightness between the item and the suction cup is a key factor that affects the adsorption effect and even determines the success or failure, and must be handled properly. The size of the adsorption force is theoretically only related to the vacuum of the pump and the area of the suction cup, and has nothing to do with the flow of the pump, but in actual use and the flow parameters of the pump are related. The reason is as follows: because it is impossible to do absolute sealing between the suction cup and the object to be sucked, there is always a little leakage, in this case, the larger the flow of the miniature vacuum pump, the smaller the proportion of leakage, the more conducive to maintaining a higher degree of vacuum, so as to get a larger adsorption force. For example, there are two pumps with the same vacuum degree, pump A has a flow rate of 1 L/min, pump B has a flow rate of 20 L/min, also in the case of 0.5 L/min leakage, the vacuum degree of pump A will be reduced a lot because 0.5 L/min leakage occupies 50% of the flow rate for pump A, which is too big. But a 0.5 L/min leak is only 2.5% of the flow for pump B, which is nothing, and the suction cup can still maintain a high vacuum. Therefore, although the two vacuum is the same, but in practice, the B pump produces more adsorption. Therefore, the pump selection must consider both vacuum and flow rate indicators, and it is not enough to emphasize only the vacuum indicator. On the release of the object after being sucked. Pump shutdown, the object will not necessarily be immediately dislodged, because the pump has a certain ability to retain pressure, the vacuum will continue to maintain a while. To release it immediately, a pressure relief branch line should be added between the pump and the suction cup, a valve should be connected to the branch line, and the valve should be opened to release the air, eliminating the vacuum in the air circuit system, so that the object can be released reliably. All of our products are maintenance-free; no oil in the pump, will not discharge gas containing oil mist, and do not need to refuel maintenance; not afraid to extract humid gas, but the extracted gas must be clean and dust-free, requiring the addition of filters, otherwise the accumulation of dust in the pump will lead to a decline in suction. It is because our products have the above advantages, so also widely used in medical equipment, military supplies. The "gas sea" brand, adhere to the high-end route ......