Sheffer CUSTOM MANUFACTURED - Manual (Page 7)

Mining dump truck
cylinders. These two stage
telescopic Sheffer cylinders are
used on underground mining
dump trucks with low overhead
clearances. Sheffer engineers
were called on to effectively use
the limited space. The first stage
of each cylinder is double acting,
the second stage single acting.
Dump scow marine
cylinders. Lined up ready for
shipment, these 18" bore, 9"
rod and 120" stroke marine
cylinders are used for opening
and closing a split hull hopper
barge. To meet space and force
requirements, the experience of
Sheffer engineers was needed by
the customer. Special manufac-
turing procedures included deep
hole boring, large/long honing,
chrome plated rods and marine
paint.
Nuclear waste telescopic
cylinders. These 100% stainless
steel cylinders produced by
Sheffer help raise and lower the
containment unit used in the
rail transport of nuclear waste
from Three Mile Island to its
disposal site. Each five stage
double acting cylinder had to
meet a 4:1 safety factor and was
subjected to extensive testing
according to demanding
certification procedures. The
turnaround time was eight
weeks from placement of the
order to shipping date.
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