This week’s questions comes from Douglas. He writes:
I have a question on dust extraction. I have a Delta 2hp dust collection with the HEPA bag, it works great but…. You knew there was a but… :-) Sanding is the issue. I generally hook up my shop vac to the portable disk and belt sanders, etc. They clog up quickly and then leave dust all over. I have yet to find a way to hook them to the big delta. Any thoughts?
And here was my response:
Hey Douglas. Unfortunately, a big dust collector is not the ideal tool for the job of collecting dust from portable tools. Although the suction seems pretty good in a 4″ tube, performance take a huge dive when the pipe is reduced to the size of the tool’s opening. Think of it this way, the big dust collector is meant to move huge volumes of air at a relatively low velocity. A portable dust extractor, or a shop vac, moves small volumes of air at a higher velocity. And with the vac, you won’t need to reduce the hose very much in order for it to fit. The key to getting the shop vac to work better for you is to find some filter bags for it. The bags will catch most of the fine dust and prevent the filter from clogging so quickly. It’s also safer for you. I did that a few years back with my Shop Vac and I couldn’t believe the performance boost I got from it. Most manufacturers make a filter bag for their vac so I would start looking on their website or giving them a call. Hope that helps.