Vacuum coater molecular pump and cryopump as main pump

Vacuum coater molecular pump and cryopump as main pump

Oil-free vacuum Xiyong uses molecular pump and cryogenic pump as the main pump, and its characteristics are mainly concentrated in that it can continuously pump a large amount of air, and can obtain clean and oil-free ultra-high vacuum. And the system has a quick start-up time and a short pump stop time. However, the system pumping heavy gas is faster than pumping light gas, and the pumping speed of water vapor type is relatively slow. When a large amount of gas passes through the pump, the pumping speed will drop rapidly.

Vacuum coating machine with oil vacuum system

The oil-based vacuum system basically uses an oil diffusion pump as the main pump, and the backing pump adopts a mechanical pump or a Roots pump. We know that the pressure of the oil diffusion pump is relatively large, and the pumping rate is very high, which can reach hundreds of thousands of liters per second. Its working ability is one of the best in the industry, which is also due to its good performance. In terms of advantages, the oil-based vacuum system works reliably, has no vibration, no noise, has a long service life, and has low maintenance and overdraft costs. Many manufacturers like to use it. However, its shortcomings are also very obvious, that is, it will form a source of pollution, and large-scale pumps are more serious in this regard.

The main pump of the vacuum coating machine is configured

Which main pumps are mainly selected for the coating equipment? The vacuum system is very important in the coating equipment industry, and it is one of the equipment that is not lacking. At present, the commonly used vacuum system structure is generally composed of a main pump and a backing pump in series, plus a valve pipeline and a vacuum measuring instrument. The selected main pump is basically divided into two forms, namely oil-based vacuum and oil-free vacuum system.

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