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One
Air Ripper requires an air system of not less than five horsepower
(10cfm @ 90psi), two power rippers will require ten horses, etc.
Compressor
Air
Ripper runs pretty much 100% throttle full-time, so a large tank
doesn’t add much. A gasoline compressor is preferred because the
5-horse electrics are 220 volt, which can be an issue at the customer’s
house. I have been using a 6 horse wheelbarrow from HF and it has been
working well. A brand-name 5.5
has also been seen to have good results. A popular compressor for framing.
Hose
To
get that power up to the roof, we need 3/8” ID hose. The light line
typically running the shingle guns will not be enough. You can get away
with a 50 footer, but a 100 gets the tall stuff and allows for easy
placement of the compressor. If your ripper is going to see
winter, stay away from PVC. Black rubber has always done me well, and
there are other good materials available.
Results
With
the HF 6 fully charged and the engine idling, only a slight surge in
performance has been observed upon first pulling the trigger, which
would indicate that the air system is matched to the tool and
delivering the full power of the engine to the work .
Air Ripper’s tear off performance shown in the videos
was achieved on the above system at 120psi. Increasing the pressure
increases performance, but is done so at the increasing risk of injury,
death, and/or reduced tool life. |
Razor Bar and Air
Razor are covered under US Patent No. 7,360,473
roof-shingle-removal-tool.com, and all it’s contents are
copyrighted 2006-2009 to the holder of that patent, all rights reserved.
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