davbell22602
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- Joined
- Jan 16, 2011
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- 5,617
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- Bunker Hill, WV
- First Name
- David
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- I Dont
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- One
I would be looking at compressors that can put out better than 10 CFM, you'll be looking at spending more than $400-$500 for a quality unit. If the ratings say 6 CFM @90psi, 9 CFM at 40psi, it doesn't matter how much the tank holds, you'll get 2-3 minutes runtime, then the motor runs for 2-3 minutes, you'll want to get back to sanding quicker, the tank empties quicker, pump kicks back on sooner, etc. In my opinion a smaller compressor like that is less energy efficient than a bigger one rated at higher CFM. The smaller one will be running 5x more than the bigger one, and building back up much slower. Even my 240v 6hp 33 gallon seems like it runs a lot to me, rated at 12 CFM @ 90psi. But at least I can get about 8 or 10 minutes continuous runtime before the compressor kicks on, and even when it does I can still keep going without losing too much pressure to hurt the performance of the tool.
What if I cut back the setting on the tool?