Powermatic Dust Collector Hot
New spin on this dust collector delivers high CFM
Previous tests of dust collectors showed that the curvature and length of the flex-hose between the blower and the bags affected the airflow performance of the machine. Powermatic’s PM1300 replaced that hose with a tapered steel chute with smooth walls and rubber flange gaskets. This not only increases airflow, but also reduces air leaks. Because the chute adds rigidity as well, it requires only one leg to support the bag rim. That makes bag changes easier. (Incidentally, the bottom bag mounts to the rim with a hoop-style built-in band that I really like).
Using a pitot tube and manometer, I measured the PM1300’s airflow in cubic feet per minute (CFM) and resistance in inches of static pressure (SP). I tested it with the standard 30-micron bags (too porous, given the price of this machine), and also with the optional 1-micron canister filter with plastic lower bag, as shown. The PM1300 delivered over 1,000 CFM at nearly 3" of SP resistance in 6" duct. When I switched to 4" duct it cranked out nearly 750 CFM at 8.6" SP. Those numbers decreased when I used the 30-micron bags. You also get a magnetic switch and built-in remote control and timer. The bottom line: This machine outperforms its peers in 6" ductwork.
—Tested by Jeff Hall