Sheffer LA SERIES - Manual (Page 17)

The Sheffer Advantage
Studded Rod End
(Standard, except on C20 Series)
Sheffer’s rod end design virtually
eliminates rod end breakage! The rod
ends of many competitive cylinders
are cut from the piston rod, creating a
weak point at the threads. Our studded
connection routes stress factors away
from this weak point, so rod-end failure
is nearly impossible. Also, rod ends can
be replaced without changing the
entire piston rod, thereby reducing
downtime and repair costs.
Four Full Wrench Flats
(Standard on all Sheffer cylinders)
For convenience, time and money
savings during cylinder installation
or replacement, Sheffer cylinders are
produced with four full wrench
flats.With our design, a flat is always
positioned for a good wrench hold with
normal tools. Our cylinders come this
way because unconventional tools and
methods are often used when a wrench
flat isn’t convenient – possibly marring
the rod surface which can damage seals
and cause leaks.
Removable Rod Gland
(Not available on select small bore cylinders)
The wiper and pressure seals on
Sheffer cylinders are encapsulated
behind a removable rod gland that is
bolted to the front of the cylinder.“On
line” changing of seals is fast and easy
using normal tools, without disturbing
torque settings, removing the rod
bearing or tearing down the
cylinder. This feature
dramatically
increases
productivity by
reducing
downtime and
repair costs.
Separate Rod Bearing
(Standard on most Sheffer cylinders)
On Sheffer cylinders, the rod bearing
is a hydrodynamic “flooded bearing”,
which greatly reduces wear and
extends part life. It’s also inboard from
the seals and a separate component, so
if changeout is needed, the seals need
not be replaced – and vice versa. No
special tools are required. Moreover,
the rod bearing can be removed and
replaced without having to loosen tie
rods or tear down the cylinder. That
saves downtime, plus the cost of parts
and labor.
Chamfered Tube Ends
(Standard on most Sheffer cylinders)
A small angle, or chamfer, is machined
into the end of each Sheffer piston
tube for quick, easy and reliable
repairs. If the piston and rod have been
removed (to replace seals for example),
when the piston is pushed back in, the
chamfer physically compresses the seal
into the piston like a built-in funnel.
Special compression tools aren’t needed
during assembly and chances of seal
damage are minimized. The chamfer
design also prohibits extrusion of the
O-ring once the tie rods are tightened.
This forms a superior seal and
diminishes the chance of leakage at the
head and cap joint.
Slipper Piston Seal
& Bearing
(Standard on all hydraulic cylinders)
The slipper piston seal and bearing
on Sheffer cylinders are a standard
option, not a cost-additive feature other
manufacturers offer when their designs
are inadequate. Our Teflon
® based
surfaces are an excellent
lubricant, demonstrating a very low
coefficient of friction with low heat.
As the cylinder moves back and forth,
the Teflon also migrates into the pores
of the cylinder tube, creating an even
better lubricating surface. Slipper seals
and bearings – another reason Sheffer
cylinders reduce costs and downtime
while increasing productivity.
Our Cylinders are Designed
with the End User in Mind
Sheffer
Cylinders
are Better
Cylinders!
The performance you
expect from a quality
cylinder
Longer lifetime of service
Minimal downtime
Fast and easy installation
Simple, affordable repairs
No special tools required
to make repairs
Lower operating cost
More options available
AC-16