Norgren NFPA Aluminum & Steel Cylinders User Manual

Page 6

ACT-1-6

Brookville, OH USA

Phone 937-833-4033

www.norgren.com

Series J, NFPA Steel Air Cylinders (ø1-1/2" to 12"), Cylinder Features

Series J Cylinders are constructed with the finest materials for each component!

Ultra Cushion

Seals:

Advanced

design features a unique, one-piece,
compound seal of nitrile* captured within
a precision machined groove. Linear and
radial “float” of the cushion seals
eliminates misalignment. Ultra Cushions
provide exceptionally fast “out of
cushion” stroke reversal. (Head and Cap
Cushions are optional.)

*Nitrile seals on the 5/8" & 1" rod diameter.
For rod sizes 1-3/8" and larger, urethane seals are standard.

O-Ring Tube Seal:

Buna is

standard. (Viton is optional.)

Cylinder Tube:

High-strength

aluminum alloy 1-1/2", 2", 2-1/2" bore
anodized on the O.D. and hard coat I.D.
Steel cylinder tube hard chrome plated
I.D. 3-1/4" to 12" bore.

Tie Rods:

High-strength steel

maintains uniform compression on
tube end seals.

Piston:

Machined solid steel,

for high strength. Threaded piston is
installed with high strength threadlocker
adhesive then staked to the piston rod.

Adjustable Captive Cushion

Needle:

A one-piece, precision threaded

brass cushion adjustment screw with a
threaded steel capture ring. It provides
safe and precise cushion adjustment.

Piston Seals:

Long-wearing

nitrile seals.

Wear Ring:

Reinforced Teflon

compounded with polyphenylene sulfide
provides supreme wear and excellent
bearing support.

Standard non-cushioned Series J cylinders are
recommended for applications that require full
bottoming of the piston and where the noise emitted
by the metal-to-metal impact between the piston and
cylinder end caps is tolerable. We recommend that
optional non-adjustable cushions be added for
piston speeds (moving light tools) ranging from 15
to 30 in/sec. For speeds exceeding 30 in/sec, the
cylinders should be equipped with adjustable air
cushions.

Piston Rod:

Hard chrome plated

high-tensile steel, ground and polished.

Rod Bearing:

External removable

threaded steel bearing housing (black
oxide finish), with an oil-impregnated
sintered iron rod bearing.

Rod Seal:

Nitrile lip-type seal

is pressure energized and wear
compensating for durability and long life.

Head/Cap:

Precision machined from

steel, then black oxide finished 1-1/2" to
2-1/2" bores. Painted black finish on
3-1/4" to 12" bores.

Wiper Seal:

Lip-type urethane

wiper seal keeps contaminates
from getting into cylinder by
aggressively wiping foreign materials
from the piston rod, enhancing the
rod seal life.

Application Information

Series J NFPA interchangeable steel air cylinders
are offered with a variety of accessories, standard
and optional equipment to meet your application
needs.

The addition of a Teflon

wear ring to the outer

perimeter of the piston permits us to guarantee its
operation against failure due to lack of lubrication
for ONE FULL YEAR, regardless of cycles! See page
ACT-1-98 for complete warranty.