05-06-2014, 05:51 PM
I have no idea what the CFM requirement is on the HF 20 ton I put on mine but my gut tells me "not very much" and "it was a great addition".
I have air over hydraulic on both the engine hoist and the shop press. They both go "pht ... pht ... pht ... pht" when you apply the air. Obviously it is the air being released from the chamber with each stroke of the piston. I suspect that in a pinch I could run either of them to full extension several times with nothing more than a full portable air tank and no compressor at all.
I think I have the air lines regulated below 130 or less and I'm sure anything more than 80-90 will work. If nothing else it saves all the pumping to take up the slack and then you can go for the gold with just a couple of manual strokes.
In short, if your compressor can not keep up with the jack you may have trouble filling a tire with it.
But that is just my non-scientific opinion.
I have air over hydraulic on both the engine hoist and the shop press. They both go "pht ... pht ... pht ... pht" when you apply the air. Obviously it is the air being released from the chamber with each stroke of the piston. I suspect that in a pinch I could run either of them to full extension several times with nothing more than a full portable air tank and no compressor at all.
I think I have the air lines regulated below 130 or less and I'm sure anything more than 80-90 will work. If nothing else it saves all the pumping to take up the slack and then you can go for the gold with just a couple of manual strokes.
In short, if your compressor can not keep up with the jack you may have trouble filling a tire with it.
But that is just my non-scientific opinion.