Good question.

I'm having a hard time thinking of a reason it wouldn't work, other than the bale possibly sticking to the top after being crushed.



Found this on a resellers FAQ

Used Box Baler FAQs

1. What size bale will the used baler make?
This particular used baler will make a 42x24x28 bale that weighs approximately between 250-400 lbs.

2. Will this used cardboard baler also bale other commodities?
Used Box Baler can only recommend baling cardboard, however we can confirm that several of our customers have or are currently utilizing their used cardboard balers for baling cans, film, cloths, and paper.
Surely someone around here has given it a shot?