![]() If you run a 13 amp 220 single phase motor for 20 minutes, that’s 13 x 220 / 3 = about 1Kwh. If we look at a $50 cartridge every 20 tanks, that comes out to $2.50 per fill. If you refill the cartridges yourself, the cost looks to be more like half of that, perhaps less. Cartridge prices vary, but for these little machine, $50 seems to be a common price point. Cartridges look to last about 20 fills of an AL80 tank on average, but that varies with temperature & humidity. ![]() Specific examples will need to be calculated with actual data pertaining to specific equipment, using specific filtration media, running on power at a specific cost, and a specified maintenance schedule.įor the 3-4cfm machines, the filter system seems to usually be a water separator, followed by a second canister with a cartridge inside. Now might be a prudent time to take a quick look at some math, pertaining to operational expenses.
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