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In addition to the
standard shell moulding process, Vacuum Backed Shell Moulded castings
offer all the benefits of the standard Shell Process with the ability to
cast larger more complex castings up to 100Kg.
This process is based
on the support of the shell moulds using the latest Vacuum Technology.
Increased Rates of gas removal and very low fume emissions are also
benefits of this Unique Process.
Below is the backing plant in operation. The shells are
lowered and surrounded by sand. This is placed under a vacuum. The
moulds are then filled with metal. On the right is an example of a large
product produced on the backing plant.
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