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Vacuum
lift tube technology differs from conventional vacuum gripping
tools by combining lifting and gripping in one simple, safe
system requiring no special interlocks or special safety devices.
Vacuum, or the
presence of lower than ambient air pressure, creates a powerful
holding force against porous or nonporous surfaces. The larger the
contact area and the greater the vacuum pressure, the higher the
holding force. Properly designed vacuum tools can be used to lift
or hold many tons. Vacuum is powerful when correctly applied.
Flow
is equally important. Vacuum without a high flow rate when applied
to porous surfaces such as cardboard is not a very powerful
force. But as flow and surface area increases the force increases.
With proper design, vacuum can be used to hold or lift almost
anything.
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Vacuum
Lifting
Our lift tube systems use vacuum and flow to both lift
and hold payloads. The use of a hoist is not required.
Using
vacuum lift tube technology to lift as well as hold requires
design within an optimum range of flow, contact area, vacuum
pressure and lift tube diameter. This is why we offer three
separate and distinct ranges of lift tube products:
The
ML or Mini
Lift series for payloads 100 pounds or less
The PL or Pal-U-Lift
series for payloads from 50 to over 200 pounds
The HCL or High
Capacity Lift series for payloads from 200 to over 1,000
pounds
Lifter capacities within each series are dependent on tooling
weight, payload porosity, available surface area for vacuum
cups and the diameter of the lift tube or tubes.
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Lift
Tube Productivity
Vacuum
lift tubes are well suited to delicate component as well as
rugged containerized payloads. Vacuum cups require a good seal
to be effective and by their very nature are soft, compliant
and non-marking.
Tooling
can be designed to include powered or manual functions for pitching,
turning or rotating payloads for optimum positioning. Tooling
can also be designed to handle multiple payloads in one lift.
We
also offer quick change tooling that can covert a lifter from
one application to another in 30 seconds or less. Thus, for
example, the same lifter could be used to handle bags and drums
in the same work area. Operators controls can be designed to
extend the operator's vertical or horizontal reach, thus improving
work area mobility, allowing reach across pallets or conveyors,
increasing range of motion and ergonomic working postures. Our
range of operator's control options are the widest available.
Unlike hoists,
lift tubes are 100% duty cycle lifting devices with infinitely
variable speed lifting and positioning. At optimally designed
work stations operators can handle 5 or more payloads per minute
with minimal physical exertion and fatigue.
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Lift
Tube Safety
Our
systems are designed to insure that more than twice the gripping
force is available versus the payload weight, a minimum 2 to
1 safety factor. The same vacuum flow is used for gripping as
well as lifting. Thus, if the gripping force cannot be generated,
such as on a cardboard box with a tear or hole in the box, the
load cannot be lifted.
In the event
of a power failure, a built in vacuum safety valve enables the
vacuum lifter to automatically lower the payload to the floor
in a safe and controlled manner.
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Lift
Tube Versatility
Simply put, vacuum lift tube technology can be applied to
all manner of handling situations where varying payloads need
to be moved quickly and efficiently.
Our
lifters have a solution for your application. We are looking
forward to working with you to improve the quality, safety and
productivity of your handling requirements.
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