Qihai company is specializing in the production of high-end miniature vacuum pumps, miniature air pumps, miniature vacuum pumps, etc., products are widely used in industrial automation equipment.
In Guangdong, Jiangsu and other places there are BGA rework station manufacturers and our year-round cooperation, bulk purchase of miniature vacuum pump for adsorption of chips.
The most widely used model for chip adsorption in BGA rework station is PK5008 (vacuum degree -50KPa.). In the case of no leakage at all (of course almost impossible), in the suction cups per square centimeter of the area will produce 0.5Kg of adsorption force. In general, there is more or less leakage between the chip and the suction cup, as long as the leakage is not very serious, the adsorption force is sufficient. The airtightness between the chip and the suction cup is the key to the problem and must be dealt with. Our products are also used in many other industries as a vacuum adsorption, some are indeed due to the suction object surface inequality and other reasons resulting in leakage is relatively large, this time we must choose a larger flow rate, higher vacuum vacuum pump, in order to have enough ability to offset the leakage, such as PC3025, PC4020.
According to the anti-jamming situation of your circuit, you may want to choose the The "low interference type" specification. The "normal type" will have voltage clutter coming into the circuit through the positive and negative power lines of the pump, which will contaminate the power supply and interfere with other circuit components using the same power supply, such as microcontrollers, LCD monitors, and so on.
You can also choose "long-life" products.
High reliability is the biggest advantage of our products. For the miniature vacuum pumps mentioned above, the pumps can be operated continuously around the clock for several months without breaking down when the pumping port is completely blocked (i.e., full-load vacuuming), as shown in the reliability parameters below. The following table shows the reliability parameters. This is a test made under the worst working conditions. Normally, the pump is operated intermittently every day, in which case the "trouble-free operation time" will be very long and much larger than the values in the table below.
Model No. Average Trouble-Free Continuous Running Time (Full Load) Remarks
PK5008-24V >2000 hours 24V voltage model should be preferred
PK5008-24V
(Long Life) >5000 hours
PK5008-12V >1500 hours
PK5008-12V >1500 hours
< p>PK5008-12V(Long life type) ＞3000 hours
(Not recommended)
All of these products are maintenance-free; the pump has no oil, and will not discharge gas containing oil mist, and does not need to be refueled for maintenance; it is not afraid of extracting humid gases, but the gases to be extracted must be clean and dust-free, which requires the addition of filters, or else the accumulation of dust in the pump may lead to a decrease in suction power. The pump is not afraid of extracting humid gas, but the extracted gas must be clean and dust-free, requiring the installation 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 it is also widely used in medical equipment, military supplies.PK5008 according to the performance of different prices in the 420 ~ 710 yuan / unit.
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