I used to use a shop vac to remove chips and sawdust from my equipment and sander. Those darned things burn out fast. They cannot take being on for a half hour at a time. I even had one throw a piece of the commutator through the side of the top of the motor.
After three of then in less than three years, I bought a commercial dust collector for woodworking. Never a problem since.
It is a 1 1/2 HP model from Enco, (800-use-enco http://www.use-enco.com ). It was about five years ago and still working. Enco does not have the best equipment, out is far less expensive. If you call, get their full catalog, the fliers are only specials and are missing a lot of items.
This chip, (maybe called dust), collector is a two bag unit that totals about 5 feet tall. The upper bag filters the air and the chips drop into the lower bag which is easy to empty. For use on multiple pieces of equipment be sure to use a blast gate at each. Thess can be closed so only the one in use gets the suction. The blast gates are cheap.
I did have to do a little modification. The air movement was great but it dropped rapidly when restricted a bit. There was too much clearance between the top of the impeller and the top of the housing. I cut a piece of 1/4" acrylic, (there was 3/8 clearance), and mounted it inside the top impeller cover. More airflow and far less drop in suction with restrictions.
Philadelphia, PA (Really Bensalem)
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