I had a harbor freight 2 HP dust collector which worked marginally with the overarm dust collector. Upgraded to a 3 HP Grizzly dust collector, and wow, what a difference. Obviously, the main thing is we have to collect as much dust as we can to keep it out of our lungs--the particles that we cannot see. When cutting thin pieces, I have to remove the blade cover, and that is when I get a lot of sawdust everywhere, so I know it is working. Another option is to put a separate line to the overarm.
I bought this knowing that it would need to be modified. Even with modifications it only provides a little dust collection even connected to a large Jet collector. It gets in the way when cutting narrow pieces which means you have to move it out of the way. That said, I ran my sawstop for over a year without it which sadly was much worse. I highly recommend shortening some of the tubing and replacing the t-connector with a y-connector.
Nice build quality, looks great on top of the Sawstop and swings out of the way (by detaching the hose coming to the blade guard) when, for instance, you're running a dado set. Unfortunately, the suction leaves a lot to be desired - even with my 1 1/2 HP Delta hooked up directly to the saw, only a bare minimum of dust is captured at the blade. The combination of the T-adapter that installs on the Sawstop dust port and the small pipe/flex hose is the culprit here - it boggles my mind that Sawstop didn't use a Y-adapter. I ended up junking the T-adapter and hooking up a small, separate shop vac directly to the metal pipe that ties into the flex hose - this provides me with excellent suction at the blade and is the only way I've found to make this system usable.
I'm unimpressed. Not much suction at the blade, even when running a Clear Vue cyclone with 6" pipe throughout the shop. The problems are: 1) the adapter is a T rather than a Y, 2) the pipe and flex hose included are too small, and 3) the flex hose is ribbed on the inside. It captures some of the dust coming off of the blade but not much, certainly not enough to justify the price. I'll figure something else out.
I have this dust arm connected to the T fitting that came from SawStop, which connects to a Shop Fox W1727, 800 CFM vacuum . It does very little good. If I connected the dust arm to a dedicated shop vac it might be more helpful. My thoughts are that the T fitting supplies about 95% of the vacuum to the saw, and 5% to the dust arm.
I love my Sawstop Professional 3hp 54 inch table saw. It is top quality and very easy to assemble thank to expert packaging. The overarm dust collection system is almost worthless and does not collect all the dust. I have even tried a blast gate on the bottom four inch connection to get more suction to the top and it doesn't help. I have a professional dust collection setup with an Oneida 3hp Gorilla with seven to four inch custom steel ducting so I have plenty of suction. Sawstop knows that this doesn't work which is why I am sure they came out with the floating one with larger hose but apparently it doesn't work either. Waste of money in my opinion.
The overarm dust collector for my new sawstop 3hp table saw was a total waste of money. I have the JET dust collector system and when I called SAWSTOP they told me it was too small to effectively work with the saw. Funny, seems to work great with my other machines. Save your money. The overarm system doesn't work.
Love my SawStop but overarm dust collection worthless
I love my SawStop. In so many ways it is showing that is is a well-designed serious table saw above and beyond its safety features. However the overarm dust collection is practically worthless. Despite the fact that I have good suction at the dust collector gate, there is virtually no suction on the overarm collector. I have removed it and would really like to get my money back if possible.