My store had a MacFab bailer installed about a year ago and without a word of a lie, is despised by everyone who has to use it. Cardboard is forever getting jammed between the walls and ram as it goes up and down, indicating poor gap distances, and it's so noisy, you need earplugs as it's operating. You could go and fix yourself a cuppa in the time it takes for the ram to lower, then come up again. But the jist of it is this:- the ram only lowers halfway down, rather than all the way like the bailer we had prior. That means you never have cardboard that's been pressed all the way to the floor, even when the volume is still minimal. In practice this means it's akin to throwing cardboard into a mailbox because the ram hasn't made sufficient space for new top ups. You throw three boxes in there and then must close the door and press yet again. It's slow and means you can't get on top of the backlog of cardboard waiting at the lineup. The message is:- rams that fail to drop all the way down are useless. Everyone at work wants that bailer replaced.
It would be for an enterprise doing that on an industrial scale. Then it would be worth the capital investment. Looks like it turns out very good briquettes. Briquettes the size and weight of which could be stacked manually. I've seen the briquettes turned out by a local scrapyard here and they are shambolic, with the compaction being shambolic, bits and pieces falling off and always close to actually falling apart. But, true, not worth it for the backyard enthusiast.
