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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.:
A gasoline compressor is
prefered because the power source required for the electric is usually not
practical at a residential roof shingle job. I have been using a 6 horse from the
discount house and it has been working well. A brand-name 5.5 has also been seen
to have good results.
100 feet of 3/8 I.D rubber air hose is about
right and has been working well. The light air line used to power the shingle guns will
not suffice.
The power stripper's tear off performance shown in the video
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.
With the above air system fully charged and the engine idling, only a
slight surge in performance has been observed upon first pulling of the
trigger. This leads me to conclude that the air system is matched to
the tool and delivering the full power of the engine to the work. |
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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