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New
Conveying Technology
Reducing belt
tension, lowering operating costs. Reducing energy consumption.
lowering capital costs, and increasing capacity.
Solution:
Stephens-Adamson has recently introduced the ESIdler™ (Energy
Saving Idler) and Super
ESIdler™ (patent pending). This progressive idler
technology offers a wide range of benefits that go well
beyond the simple energy cost savings suggested by the
product name. The most basic benefit from the use of this
technology is reduced belt tension. On new installations,
the reduced tensions translate to a lower capital investment
in belting, drives and structure. Operating costs are also
reduced as energy consumption is lowered. Since the technology
will make it possible to use lower rated idler rolls, the
operating cost associated with roll replacement will also
be lowered. ESIdler™ and Super
ESIdler™ utilize a pair of rolls in the center
of the idler. Since approximately 70% of the load carried
by an idler is applied to the center roll position, the
use of two rolls means that the rolls can be ones with
a lower rating. In a conventional idler, the concentrator
(wing) rolls are each only subjected to about 15% of the
load.
Therefore, in traditional three-roll configuration,
these rolls are much larger than required only for the
convenience of inventory control. In the ESIdler™ or
Super ESIdler™ configuration, all four rolls are
lower rated and their design capacity is more efficiently
utilized. The lower rated rolls offer another spin off
benefit. A smaller diameter shaft means a smaller sealing
area thereby reducing the opportunities for contaminants
to make their way into the bearings. ESIdler™ and
Super ESIdler™ also offer the opportunity to increase
the capacity of existing conveyors. Reduced belt tensions
and optimized idler roll loading mean more tonnage can
be handled on the same conveyor without the need to upgrade
to larger idlers or a higher strength belt. The benefit
list also includes reduced material spillage because of
reduced belt sag, protection of light belts at the junction
of the center and concentrator rolls… The number
of possible benefits is endless.
ESIdler™ Protected
by the following Patents: AU #776971, PE #3593, ZA #
2002/3134, US #6,550,606, Other patents pending.
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