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The 'HighWeigh' Weighbridge is an extremely heavy duty, orthotropic closed chamber design, fabricated to the highest standard and under strict quality control.
Available in standard 8m x 3m, 15m x 3m, 18m x 3m and 20m x 3m sizes and available in capacities of 40, 60, 80, and 100 tonnes. Other sizes and capacities are available upon further request. |
| The HighWeigh deck has a 10mm thick plate and replaceable 5mm grip plates adding extra support along the wheel runs. This makes the HighWeigh the strongest deck available, as standard, in the world.
All joints are fully welded, sealing the internal structure from outside elements and reducing the risk of corrosion whilst the external structure is protected against the elements using a 3 coat epoxy system. |
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| The HighWeigh is designed for use as both a Surface mounted or Pit mounted device, available as either a purchase or hire with long term guarantees available. Libra's highly qualified engineers make the installation and setup an easy process which can be completed within 4-5 hours. |
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The 'HighWeigh' Weighbridge's strength not only comes from the orthotropic design but also from the heavy duty load cells.
Comprising of a strong , shear-beam type base, heavy duty cups and high tensile steel ball bearing, they are the strongest load cells on the market.
The load cell connects directly to the weighbridge whilst the ball bearing sits between the cell and a base cup on the ground. Unlike most load cells on the market which take the full stress of the loading and eventually fail, the ball bearing absorbs all side and shock loadings giving the load cell itself full protection. |
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The above cross section drawings show how the Libra steel,
Orthotropic Closed Chamber eliminates bending as beams are
not used. We use specially folded, heavy gauge steel continuously
welded to the plates to support the vehicle wheels. We also
include an extra 5mm wear plate for the tyres giving a heavier
gauge plate thickness of 15mm.
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Orthotropic Design (Shown Inverted) |
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The Unique, folded, continuously welded steel
design (pictured) not only makes the Weighbridge stronger it
also seals the weighbridge from corrosion and leaves a smooth,
clean finish with no ledges for ingress or water build up. |
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Complete Package - Extra Strength |
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weighbridge is delivered complete with Load Cells, Indicator
& Printer. There are no hidden extra costs and all installation,
calibration and stamping (if required for trade use) is included. |
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THE SHAPE OF THINGS TO COME
A few things you probably didn't know:-
When a vehicle drives onto a weighbridge, the deck sustains compression
on the top & tension on the bottom. Therefore the lower area
of the deck is the point of highest stress ie. always trying to
pull itself apart.
Libra Weighing Machine ensure that this area is kept at it's ultimate
strength by eliminating welding and using sections that are specially
folded in a trapezoidal shape.
Why doesn't everyone use this method? That's easy...Cost! To make
this structure as strong as it is a 600 tonne press to fold the
steel is required.
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Libra's Design
The trapezoidal shape of the Orthotropic design ensures that
loadings interact against each leg equally by transferring
the load from one leg to the next eliminating any bending
of the structure.
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Other's Design
Parallel beams or box sections don't offer the same support
as the load can bend the section either way. Eventually the
load transfer will cause the welding of the bottom plate to
weaken causing the sections to collapse in either direction.
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Other's Design
The open beam construction allows any beams to buckle when
loaded. There is little protection from the deflection of
the flages which will eventually cause major weld failure
and fracture. This type of structure also offers very little
protection from the deflection of the flanges which will eventually
case major weld failure and fracture. This type of structure
also offers very little protection against corrosion as opposed
to the fully welded Orthotropic section.
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