Here's 1: http://www.cbsnews.com/8301-201_162-57531800/worker-cooked-to-death-at-california-tuna-plant/.
Few others that i've heard of:
Pulled into a wood chipper and shredded into pieces. Have to find the story, but I believe there was a story of a kid who watched his dad being mutilated by a machine.
Another one, probably a similar fate, is a guy who fell into an industrial machine at a plant that makes paper.
Note: Please try to keep stuff from 1000 Ways To Die to a limit since several of those are exaggerations.