of the exhaust and raising the ram can be adjusted to maximize
energy transfer and change the stroke. Ram weights range from
650 lbs. to 5,000 lbs., with minimum stroke as short as 8 inches,
and maximum stroke reaching three feet. The stroke of the hammer
can be adjusted by simply loosening two screws and sliding
the exhaust valve up or down on a square rod. The stroke is visible
through a vertical slot in the frame. These short strokes and
exhaust timing increase the duration of force, which minimizes
stress in the pile and increases transferred energy or drivability.
This has been proven through Pile Driving Analyzer testing.
ASSOCIATE MEMBER
Older style air hammers typically transferred 30 to 50% of the
potential energy and required large air compressors. The Pile
Master transfers 90 to 95% potential energy, giving greater drivability
in a smaller, lighter weight hammer, while delivering 45 to
60 blows per minute.
Various bell assemblies are available to drive timber, pipe, concrete
and H-piles. The bell assembly can be changed by removing
four pins. Pile Master also has inserts that can be bolted inside the
bell assembly to accommodate smaller piles. A floating steel plate
in the bell assembly eliminates the need for driving caps.
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