Because of the auto ejection, the operator can operate several machines with little waste.

Automatic material feed and eject (optional)

Properly Using Auto-Eject Isn’t Automatic - Food Safety Network
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In order to get the benefit of any kaizen, we would then have to bring another ... If there is an auto-eject on the first machine, however, ...

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Note added at 12 hrs (2011-02-06 08:06:32 GMT)
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In order to get the benefit of any kaizen, we would then have to bring another machine close to the first one, and ask the operator to operate the first one, then the second.
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If there is an auto-eject on the first machine, however, the operator can use the ejected part and place it in the second machine while the first operates. She is no longer tied to the machine. And, in fact, if the cell is designed without any barriers to the flow of parts between one machine and the next, the operator can simply push the auto-ejected part in the next fixture, and can probably deal with a third, fourth, fifth machine in the same cycle time, and with lowered ergonomic burden.

http://www.lean.org/Bookstore/ProductDetails.cfm?SelectedPro...

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Note added at 1 day17 hrs (2011-02-07 13:22:16 GMT) Post-grading
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Thank you too, Roberto.
Greetings from Romania :)