I recently picked up a 26" drum sander but it only has one 4" dust port. It's an older style sander and uses 4 rollers on top of the board vs the conveyor belt. The factory design of the dust collection isn't that great and the outfeed rollers get caked with dust. They are easy to clean but I'm thinking of adding two more 4" ports. I would do just one more but the existing port is centered and there's no room to another one behind it. So that means one on each side of it. I have a portable Reliant 2hp dust collector that I was going to use with this since both are mobile and most likely will not see too much use. The dust collector has a 5" port on it with a "Y" adapter for two 4" pipes.
I'm not sure what's the best way to go from three 4" pipes to the collector. Would it be best to get a 5" three way "Y" fitting and a reducing fitting (does anyone even make such a thing)? Would I be better off running the center 4" pipe directly to one port on the collector and getting a 4" "Y" to combine the outside pipes and running it to the other port assuming that most sanding will be at or near the center? I could block off the center port on the sander and only have two. I think 2 4" ports would work well enough. Do any of the companies that make dusct collection fittings have an on-line catalog?
I'm kind of out of room in my shop so my plan is to put this in separate area. Ideally it would live in a corner and get moved out when needed. I could just leave it alone but I think I'll enjoy it more if I can increase the dust collection. It might get a little tiring moving the wood to the sander but this is mostly temporary. I do have a 16x30 cabin that I'll move into once I get around to expanding it some.