We at Precious Plastic Los Angeles have built a shredder. It works well for cups, coffee lids and other thin plastics, but whenever we seem to put something thicker in, it stalls out. We are curious to know how thick of materials people have successfully cut with their shredders. Have you needed to sharpen the blades? From our observation there are only 0.5mm gaps for plastic to go through, so if there would be plastic thicker than that, then we were expecting it to get stalled because it would jam as it is being pushed through. I’d appreciate to see videos of others and get the specs on the motor and gearbox you used and any other tuning you did to the shredder parts.
We used a 60:1 gear reducer with a 1.5HP motor and are running it at about 45-60RPM. We used a chain drive due to orientation of the motor, but with tightening the shredder box and the mounting to our frame, that did not seem to be the issue. We don’t have the best video yet of our shredder, but here is one: https://www.instagram.com/p/BfU2o-6hqvf/?taken-by=preciousplasticla