Spar Mooring
Tensioning system
One of the safest and most efficient ways to lift, tension, or move heavy loads using chain, is the linear chain jack, as shown in the picture below.
As
the word "Linear" in the product's name implies, the chain is always
lifted, pulled, or tensioned in a straight line. There are no
induced link bending stresses and interlink wear inherent when
jacking the chain and simultaneously bending it around a shoe or
chainwheel.
The Linear Chain Jack has a significantly reduced footprint when
compared to other devices such as windlasses or winches. This
reduces the amount of sometimes crucial deck space required to. The
Linear Chain Jack has been designed such that the chain is
always mechanically held by either the Fixed or Traveling latches.
This makes it impossible for the chain to be released inadvertently
due to loss of hydraulic power or operator error. Its hydraulically
based power source allows it to be incorporated into a multi-unit
system for the safe, efficient, and synchronized movement of
extremely heavy loads exceeding 30,000 metric tons.
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The design is kept simple with few moving parts. This results in low initial, operating and maintenance costs.
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Chain is mechanically held at all times.
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All parts can be easily removed for preventative maintenance or repairs.
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The latches cannot be released while under load.
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Simplified foundation structural design.