|
Features
|
Advantage
|
Benefit
|
|
1. Heads and Caps
|
Square, precision-machined
steel.
|
Assures concentricity
of tube, bearing, cushion
and piston rod. Chamfered
grooves allow fast and
easy positioning of cylinder
tube over the tube seals.
Can be made proximity
switch ready to accept
same probe-length switches
at each end without spacers.
|
|
2. Cylinder Tube
|
Heavy wall seamless D.O.M.
steel material (1020 to
1026). Precision honed
to 10/15 micro inch finish
and hard chrome plated
.0003/.0005 thick on I.D.
|
Reduces wear on piston
seals and tube surface.
Hard chrome I.D. finish
provides corrosion resistance
and minimizes tube scoring.
|
|
3. Piston
|
One-piece fine grained
ductile iron piston is
threaded onto piston rod,
torqued with a jam nut
and held in place with
Loc-Tite.
Piston can be pinned onto
rod as an option. Holes
are drilled in each side
of piston face, when U-Cups
are used, to allow fluid
pressure to increase the
positive sealing.
|
Wide piston bearing surface
reduces bearing loads
and assures low wear and
low friction to the piston
seals and tube ID.
An O-Ring with two Teflon
backups are used to seal
the piston
to the rod, which prevents
fluid leaks from bypassing
the piston.
|
|
4. Tie Rods
|
Made from 100,000 psi
minimum yield, stress-proof,
medium carbon steel with
rolled threads at each
end.
|
Provides maximum strength
for connecting cylinder
mounts. Lock nuts prevent
loosening in service.
Accurate torquing prevents
leaks at tube seals.
|
|
5. Tube Seals
|
Buna-N Nitrile O-Rings
are seated into grooves
in both the head and cap
end covers. O-Rings are
backed up with Teflon
rings which effectively
prevent O-Ring extrusion
under pressure.
|
When combined with accurately
torqued pre-stressed tie
rods, proper O-Ring placement
at the ID of the tube
and confinement
of the tube OD, seal extrusion
and fluid leakage under
pressure
is prevented.
|
|
6. Rod Seal
|
The symmetrical loaded
sharp lip poly pack type
rod seal made from 90+
durometer blended urethane,
with an anti-extrusion
heel, is positioned in
a I.D. groove in the back
side of the bearing cartridge.
|
Provides positive static
and dynamic sealing on
O.D. of piston rod and
cartridge I.D. at both
low and high pressures.
Anti-extrusion heel energizes
sealing mechanism as pressure
increases.
|
|
7. Rod Wiper
|
90+ durometer, sharp
double lip, blended Nitrile
seal provides additional
sealing beyond rod seal.
Additional materials can
be used to combat various
application demands, such
as high heat. Severe external
conditions could require
the addition of a metallic
rod scraper installed
ahead of the rod wiper
to effectively provide
dual protection from the
elements.
|
Prevents dust, dirt and
grit from entering the
bearing cartridge and
cylinder, which significantly
extends the cylinder life.
|
|
8. Piston Rod
|
100,000 psi minimum yield
strength induction hardened
& chrome plated steel
with core hardness of
RC 28-34. Case hardened
to RC 50-55. Rod is hard
chrome-plated (.0003/.0005
thick) and polished to
12/15 micro inch finish.
Solid male threads contain
radiused undercut.
|
Resists wear. All metric
rod and thread sizes,
including female and studded
male ends, are available
with rolled threads. Provides
positive connections to
existing machine components.
Solid male threads with
radiused undercut minimize
rod end breakage.
|
|
9. Bearing Cartridge
|
Floating, self-aligning
bearing cartridge is made
from grade 65-45-12 ductile
iron, 660 bronze or “Slip
Tuff” coating as an option.
Cartridge is retained
by cap screws and plate
providing for strength
and shock resistance.
Buna-N O-Ring with Teflon
backup ring on the cartridge
OD prevent extrusion and
fluid leakage around the
outside of bearing cartridge.
|
Float condition minimizes
piston rod misalignment
by reducing side loading.
Easily removed for rod
seal and rod wiper maintenance
without requiring special
tools to disassemble the
cylinder.“Slip Tuff” coated
cartridge provides lubristic
wear surface with hardness
characteristics that significantly
reduce galling and bearing
cartridge failure in severe
side loaded applications.
|
|
10. Ports
|
BSP or BPT ports are
to be identified at time
of order. Optional port
sizes include flange ports,
NFPA ports and oversized
ports.
|
Universally adaptable
to any hose or fitting.
|
|
11. Piston Seals
|
80 durometer, sharp lip,
pre-lubricated, carboxylated
Nitrile U-Cups with Teflon
backup rings are standard.
Step cut cast iron piston
rings, with a T-Seal centered
in between, are also available
as an option.
|
Teflon backup rings prevent
U-Cups from extruding
and minimize leakage.
The T-Seal centered between
the rings helps prevent
leakage and the probability
of seal failure during
high shock operating conditions.
|
|
12. Cushions
|
Floating ductile iron
rod cushion collar on
head end. The cap cushion
is a 660 bronze floating,
check-type seal insert
held captive by a retaining
ring in the rear end cap.
Ball checks are provided
at both ends for rapid
breakaway out of the cushion
and the ball check screws
are flush with the end
caps.
|
Cushions are optional
but ultimately help prevent
cylinder failure, due
to fatigue, resulting
from the piston slamming
into cylinder end caps.
A reliable floating cushion
system provides for smooth
action and eliminates
binding conditions, which
can cause sudden failure.
|
|
13. Cushion
Adjustment Screw
|
Steel needle valve with
Nitrile O-Ring and Teflon
backup ring. The captive
adjustment screw can be
locked in place and is
flush with the end cap.
The lock down mechanism
prevents the screw from
loosening due to vibration.
|
The Teflon backup ring
behind the O-Ring prevents
fluid leakage around the
adjustment screw and helps
ensure accurate fine adjustment
of cushioning speed. Captive
screw assures user safety.
|
|
14. Optional Air Bleed
System (not shown)
|
Manual air bleed plug
is located on the cylinder
tube.
|
Eliminates trapped air
from inside the cylinder.
|
|
15. Optional Rod Cartridge
Drain Back System
(not shown)
|
Drain feature is an additional
groove cut into the front
end of the bearing cartridge,
between the rod wiper
and rod seal, that drains
off any accumulation of
fluid between the seals.
A cartridge drain port
is located on the cartridge
retainer plate for a user-installed
drain line back to the
reservoir.
|
Captures hydraulic fluid
and drains it back to
the reservoir. This
minimizes the slow weepage
of hydraulic fluid through
the rod wiper onto the
piston rod.
|
|

Field Service and
Engineering Support
We understand the importance
of technical assistance
and the availability of
products and repair parts.
Thats why we have
a distributor network
and technical representatives
throughout the country.
You can also reach our
Customer Service Department
for help.
Complete Repair Facility
Peninsular repairs all
air and hydraulic cylinder
makes and models. All
cylinders are performance
tested before shipment.
Estimates are provided
prior to repair activity.
Easy Order Procedure
For your convenience,
please refer to the How
to Order and Specify Section.
Just follow steps A thru
J in the example and forward
to us for price and delivery
information or contact
our Customer Service Department
or your Authorized Peninsular
Distributor.
|
| |