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Drum
hoists are the simplest and most widely
used motorized hoists. They are usually
a dead haul type of hoist, where the
entire load is supported by the hoist,
without the use of counterweights |
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The
hoist has a drum long enough to accommodate
all of the lift lines required for
that particular set. The drum is helically
grooved so that the lift lines wrap
neatly in a single layer, to avoid
damage to the wire rope. The drum
can be oriented either horizontal
or vertical depending on project requirements.
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Drum
hoists can be located on the grid,
galleries, or in a separate motor
room. A head block and loft blocks
may be used to route the lift lines
to the batten. |
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Fixed
and variable speeds are available. |
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Features |
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The
motor, brake, and gearbox are an integrated
unit from a single manufacturer, for
quality assurance. A continuous shaft
links the brake, motor armature, and
the first stage pinion gear without
the need for couplings, for added
reliability and safety. |
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The
motor brake is spring applied and
electrically released, for "fail
safe" operation. |
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The
drum is helically grooved to carry
a single layer of cable, for long
cable life and reliable operation.
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Four
limit switches are provided for normal
end of travel and over travel protection.
The two circuits operate separately
for added safety. |
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Please
call with questions or orders. We'll
work with you to provide hoists to
meet your schedule and needs. |
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