What is an ejector?
A9. Vacuum sealers that have “NTW” as part of their model names use ejectors to vacuum air from the bag. As shown on the right, an ejector takes advantage of the phenomenon of when compressed air is sent through the pipe (in case of our products, the nozzle), all the other air in the pipe gets pushed out in the same direction. The vacuuming speed using the ejector is three times faster than that of vacuum pumps, but the ultimate vacuum by the ejector is about one half of what the vacuum pump achieves. Therefore, ejectors are appropriate for use when you are looking for high speed instead of high vacuum during the vacuuming process. In addition, because the contents that are vacuumed through the nozzle can be discharged or released directly outside of the device of the machine, ejectors are suitable for vacuum sealing powders and liquid. On the other hand, when complete vacuum and gas-replacement must be ensured, ejectors are not suitable.
