Cap Sorting Elevators specification should start with the real closure.
A cap sorting elevator can reduce bowl refill labour and improve consistency at higher outputs. Some applications use an elevator to lift closures into a sorter or bowl, while others use elevator geometry as part of the orientation process.
For a better buying decision, the useful comparison is not only hopper size or headline speed. It is how the feeder behaves with your closure, how the capper receives the cap and how easy the line is to run after changeover.
The safest specification route is to start with real closures, target output, line photos and the exact point where the cap must be presented. That avoids choosing a feeder on a generic speed figure that does not match the cap or capper.