![]() ![]() You can use one of the various static pressure calculators such as Bill Pentz's static pressure Excel spreadsheet to calculate the static pressure drop produced by your ductwork and hoses. Every inch of pipe or hose, every turn, and every change in diameter produces resistance which your dust collector (or vacuum) must overcome. This is where static pressure comes into play. Remember, I said that was under ideal conditions. As you can see from the CFM figures above, under ideal conditions this dust collector should be able to capture most of the dust from most tools except larger sanders and 14" or larger planers. A 1hp Grizzly dust collector rated at produces 500 CFM/235 l/s and 2.76"/7 mbar of static pressure. Now let's look at some contenders for an entry-level dust collection system.
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