Norgren NFPA Aluminum & Steel Cylinders - Manual (Page 7)

Brookville, OH USA Phone 937-833-4033 www.norgren.com ACT-1-7
Series J, NFPA Steel Air Cylinders (ø1-1/2" to 12"), Cylinder Features
Series EJ Ecology 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.
Impact Dampening Piston Seals:
Our impact dampening piston seals, in
conjunction with our advanced cushion
design, decelerate and reduce
end-of-stroke noise.
Piston: Machined solid steel, for high
strength. Threaded piston is installed with
high strength threadlocker adhesive then
staked to the piston rod.
2 1
3
O-Ring Tube Seal: Buna is standard.
(Viton is optional.)
Adjustable Captive Cushion Needle
(not shown): Fine thread allows
for safe and precision adjustment of
cushion. (See page ACT-1-6.)
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.
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Tie Rods: High-strength steel
maintains uniform compression on
tube end seals.
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.
Rod Seal: Nitrile lip-type seal is
pressure energized and wear
compensating for durability and long life.
Rod Bearing: External removable
steel bearing housing (black oxide
finish), with an oil-impregnated sintered
iron rod bearing.
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Piston Rod: Hard chrome plated
high-tensile steel, ground and polished.
Head/Cap: Precision machined from
steel, then black oxide finished 1-1/2" to
2-1/2" bores. Painted black finish 3-1/4"
to 12" bores.
Wear Ring: Reinforced Teflon ®
compounded with polyphenylene sulfide
provides supreme wear and excellent
bearing support.
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