04:01AM | 03/05/04
Member Since: 03/04/04
2 lifetime posts
I'm thinking about purchasing a 1.5 HP 125 max PSI portable air compressor. What can I expect from it ? Would appreciate reviews/comments.


07:31PM | 03/22/04
Member Since: 03/21/04
7 lifetime posts
I have a portable compressor. It's a little larger than the one you describe. Mine is 3.5 HP and 135Psi max. Basically, with any compressor, you have volume and power. the more volume you have, the more you can run tools at sustained use. The more power you have, generally that means the larger your pistons are to replenish the air. a unit that size is most likly a single stage single stroke. Meaning that it has one piston (stage) and only puts air into the tank on one stroke.

Mine is factory set to turn on at 110 psi and shut off at 135 psi. It takes about 7 seconds to fill the tank back up when it kicks on. That's a good number. When using a finish nailer, I get about 15-20 shots before recycling. A framing nailer gives me about 7 shots. I have occasionally used sanders or impact wrenches but at very intermitant use. You don't want your compressor "pumping" for more than about 25-30 minutes per hour on average. It can overheat.

Basically, you have to figure out what you want to use the compressor for and then buy the right one for the job. Mine came as a starter set from Porter Cable that was purchased at a Home center. It came with the framing nailer so I assume Porter Cable intended them to be used together. I saw a 25 gallon 5hp compressor for sale the other day that had under "intermitant use tool" an impact wrench. Even that size wasn't recomended for heavy use of that tool so I would expect that the one you talk about would be about perfect for finsh or brad nailers and staplers.

One last thing, if you do go bigger than 1.5 HP, learn from my mistake and try to find one with a soft start. I've blown many 15 amp breakers when this thing kicks on. Gets to be a pain, it's the initial start that really draws amps so a soft start like makita has may be worth the money.


04:29AM | 03/23/04
Member Since: 03/04/04
2 lifetime posts
Thanks rolandk10. Very helpful.


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