Features

Advantage

Benefit

1. Heads and Caps

Square, precision-machined steel. Assures concentricity of tube, bearing, cushion and piston rod.

Can be made proximity switch ready to accept same probe-length switches at each end without spacers.

2. Cylinder Tube

D.O.M. seamless 1020 to 1026 steel; precision honed to 12/15 micro
inch finish; hard chrome plated .0003/.0005” thick on ID.

Resists wear, corrosion and dents; reduces wear on piston seals.

3. Wear Band

Delrin™ material.

Creates low friction, long lasting wear surface which prevents
scoring of cylinder tube inner wall.

4. Lubrication
Reservoirs

Located underneath wear band inside piston and also inside the
bearing cartridge.

Provides effective way of metering maximum amount of lubricant to
all areas over long time period. Not subject to air turbulence and
contamination.

5. Lubricant
(not shown)

Teflon™ based grease.

Long lasting lubrication of piston seals, inner cylinder wall surface
and rod bearing cartridge seals and ID.

6. Piston

PistonOne-piece steel, black oxided with uniform cushion hubs on both
sides, threaded onto piston rod, staked and secured with Loc-Tite™.

Prevents rusting and air leakage; anchored onto piston rod with
minimum undercut providing maximum strength. Additional pinning onto rod optional.

7. Tube Seals

Buna-N Nitrile axial placed O-Rings.

When combined with accurately torqued tie rods, prevents extrusion of seal and air leaks under pressure.

8. Cushion
Adjustment Screw

Steel needle valve with Buna-N O-ring sealed screw, held captive
with locking snap ring.

Accurate fine adjustment of cushioning speed; no air leakage and safe for all users due to internal captive screw.

9. Rod Seal

80 durometer, rounded lip, pre-lubricated, carboxylated nitrile cup style. Smears grease through ID of rod cartridge extending seal life within.

Resists abrasion; significantly increases life and prevents leakage around piston rod.

10. Rod Wiper

80 durometer, sharp double lip, pre-lubricated, carboxylated nitrile
seal.

Provides additional sealing benefit beyond the rod seal.Inside edge always lubricated extends life significantly, prevents dirt and grit from entering bearing and cylinder.

11. Piston Rod

High yield strength steel, case hardened OD to 50-55 RC. Core
hardness to 28-34 RC. Hard chrome plated .0003/.0005” thick and
polished to 12/15 micro inch finish. Rolled threads.

Resists wear. All NFPA rod and thread sizes, including female and studded male ends available, plus metric threads. Provides positive connections to existing machine components.

12. Bearing Cartridge

Floating, self-aligning in either ductile iron or SAE 660 bronze with
internal lubrication reservoir. Special “Slip Tuff” coated cartridge is
also available for heavy side loaded applications. Retained by plate
with cap screws; strong and shock resistant. A Buna-N O-ring
located around the cartridge OD prevents leakage.

Float condition minimizes piston rod misalignment by reducing side loading. ID of bearing cartridge, rod seal and rod wiper lubricated on each stroke, reducing wear. Easily removed for maintenance without special tools to disassemble cylinder. Optional “Slip Tuff” bearing provides lubristic wear surface with hardness characteristics that
significantly reduce galling and bearing cartridge failure under
severe side loaded operating conditions.

13. 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 and
used with lock nuts to prevent loosening in service. Accurate
torquing prevents leaks at tube seals.

14. Cushion Hubs

Steel with 8/12 micro inch finish RMS. Black oxided to prevent rusting and corrosion.

Uniform on each side of piston to eliminate different size cushion seals and reduce spare parts inventory. Smooth surface stops cushion seal wear and provides air-tight accurate operation. Ideal for proximity switch applications.

15. Piston Seals

80 durometer, rounded lip, pre-lubricated, carboxylated nitrile U cups.

Resists abrasion; when used with Peninsular's internal lubrication system, provides considerably less wear and increases operating life.

16. Cushion Seals

90 durometer floating check type Urethane seals eliminate ball
checks and related parts.

Low friction breakaway and 100% air-tight cushioning assures
smooth maximum effectiveness. Metal to metal cushions are
eliminated and same size seals at each end reduce parts inventory.

17. Ports

NPT standard, SAE O-ring optional.

Metric and other thread size options. Universally adaptable to any hose or fitting.

18. Optional Proximity
Switch Capability
(not shown)

Allows for non-contact piston position sensing at near end of stroke.Precision machined cylinder heads and piston cushion hubs allow for in-port mounting of “RF inductive” proximity switches using the same switch probe length at each cylinder end without
shims or spacers underneath the switch.

Self-contained switch probe not subject to contamination. This
patented design creates the same air gap between the sensing probe and target (cushion hubs), thus providing consistent, reliable
and repeatable stroke-to-go. Eliminates the design and construction of brackets necessary to mount mechanical limit switches. US Pat.
No. 4,726,282 & D 295,753

Field Service and Engineering Support
We understand the importance of technical assistance and the availability of products and repair parts. That’s 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.