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Amount of weight
(load) that is to be moved.
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Is the load moving
in a vertical or horizontal direction?
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Is the stroke travel
unsupported or is it guided or supported in any way?
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Is the load being
moved in only one direction or is it being moved in both
directions of the cylinder stroke? If in only in one direction,
is it on the push (extended stroke) or the pull (retracted
stroke) of the cylinder.
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What is the
air line pressure that is driving the cylinder ?
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Do you want the
cylinder to “pivot” when the stroke occurs or do you want it
moving in a straight line with the fixed directional mount of
the cylinder.
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Once an intermediate
trunnion mount cylinder is ordered, it is most important to know
the XI dimension; this will tell us where to locate the center
trunnion between the front and rear cylinder end caps.
Note:
If the extended piston rod feature is selected for this mount
there will be a change to the stated XI dimension. Specify the
XI dimension under the configurable optional features section of
our configurator. If an extended piston rod or stop tube is
required, these features must be selected first before selecting
the XI dimension. Please
contact us if confusion arises because of this issue.
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When selecting a
clevis or eye mounted cylinder (pivoting cylinder) make sure
that all clevis pins are properly greased at the time of
installation; failure to do so will lead to premature cylinder
failure. Peninsular supplies a tube of
grease with all pivot mounted cylinders such as trunnion mounts,
clevis mounts and eye mounts.
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When selecting
lug mounted cylinders you may want to "key" the lug mounts.
These keys aid in the prevention of premature cylinder failure by
providing structural support for the cylinder tie rods and the
bolts that are used in fastening the lugs to the mounting
surface of the cylinder.
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When selecting
flange mounted cylinders the weight of the cylinder becomes
important. You may want to consider using a “square head or cap” mount for heavier cylinders to reduce the stress
imposed upon the flange plate and the mounting screws. Note that
many cylinder manufacturers have different shapes and dimensions
for their rod cartridge retaining plates. Note that rod
cartridge retaining plates are not
specified NFPA dimensions, and as a result, careful attention
should be paid to the dimensions of the rod cartridge retaining
plate especially
if it is used in conjunction with a “pilot dimension” to mount a flange type
cylinder.
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When selecting
head tie rod extended, or head and cap tie rod extended
cylinders careful attention should again be paid to the
dimensions of the rod cartridge if it is used as a pilot
dimension to mount extended tie rod mounted cylinders into the
tooling system. Rod cartridge dimensions are not specified by
the NFPA, and as a result, many cylinder manufactures have
different dimensions associated with their rod cartridges.
