Allenair - Air Cylinders

Air Cylinders & Hydraulic Cylinders have Standard Stainless Steel Tubes. *Optional Brass Tube available.

BASIC CONSTRUCTION (DOUBLE ACTING)

TYPE A SINGLE ENDED - AIR CYLINDERS

All Type"A" Air Cylinders, with the exception of the 4" bore, are constructed using "O"-Ring Seals. The 4" bore uses "O"- Ring Rod Seals and "U" Cup Piston Seals. These all-purpose units are used for most pneumatic applications. Optional Double Rod Packings are recommended for heavy duty and hydraulic applications, not available on 7/8", 3/4" & 1-1/8" Bores.

Pressure Rating: 150 PSI. Pneumatic, 350 PSI. Hydraulic.

Breakaway: Approximately 5 to 8 PSI.

Bore Sizes Available: 7/8", 1-1/8", 1-1/2", 2", 2-1/2", 3" & 4".

TYPE C SINGLE ENDED - AIR CYLINDERS

Type "C" Air Cylinders are constructed using low friction "U" Cup Seals and include a wear strip on the piston. These Cylinders are primarily used on low pressure applications and where low minimum breakaway is required.

Pressure Rating: 150 PSI. Pneumatic only.

Breakaway: Approximately 2 to 3 PSI.

Bore Sizes Available: 7/8, 1-1/8", 1-1/2", 2", 2-1/2 & 3".

TYPE E SINGLE ENDED - AIR CYLINDERS

Type "E" Air Cylinders are constructed using Block-Vee Seals and include double rod seals in the front head except on the 7/8" & 1-1/8" Bores. A heavy duty wear strip (bearing) on the piston minimizes friction and piston seal wear, and on side load conditions prevents metal-to-metal contact. These Cylinders are generally used on low pressure hydraulics and where side load conditions are present.

Pressure Rating: 200 PSI. Pneumatic, 500 PSI. Hydraulic.

Breakaway: Approximately 10 to 15 PSI.

Bore Sizes Available: 7/8", 1-1/8, 1-1/2", 2", 2-1/2", 3" & 4".

5" BORE AVAILABLE-Consult Factory for Details.

STANDARD VARIATIONS OF TYPES A, C & E

The basic construction of these standard variations is respectively identical to

Types "A", "C" or "E", except where noted.

DOUBLE ENDED - AIR CYLINDERS: TYPES AD, CD & ED

Such types of Air Cylinders are constructed with a common single rod, which protrudes from both ends. As one end retracts, the other extends.

Bore Sizes Available: 7/8", 1-1/8", 1-1/2", 2", 2-1/2", 3" & 4".

Maximum Stroke Available: 65".

NOTE: Due to piston construction, 3/32" of stroke is lost on Type AD 1-1/2", 2", 2-1/2" and 3" bore sizes.

BACK-TO-BACK - AIR CYLINDERS: TYPES ABB, CBB & EBB

These types of Air Cylinders units consist of two separate single ended Cylinders, joined together by a common rear head. Their strokes can be either identical or different. By fastening one rod end to a fixed object, these units can perform as 3 and 4 position Cylinders.

Bore Sizes Available: 7/8", 1-1/8", 1-1/2", 2", 2-1/2", 3" & 4".

NOTE: Options must be indicated for each stroke.

INTEGRAL REAR SWIVEL - AIR CYLINDERS: TYPES AN, CN & EN

These Cylinders are constructed with a female clevis end, including clevis pin.

Bore Sizes Available: 7/8", 1-1/8", 1-1/2", 2", 2-1/2", 3" & 4".

INTEGRAL SQUARE HEAD - AIR CYLINDERS: TYPES AS, CS & ES TYPES ASD, CSD & ESD

These types of Air Cylinders units incorporate the use of square heads, thus eliminating the need for separate Foot Mounts.

Bore Sizes Available: 7/8", 1-1/8", 1-1/2", 2".NOTE: Due to piston construction, 3/32 of stroke is lost on Type ASD 1-1/2" and 2" bore sizes.

THREE POSITION - AIR CYLINDERS: TYPES: AP, CP & EP Single Ended TYPES: APD, CPD & EPD Double Ended

These Air Cylinders feature two separate piston rod assemblies which provide three definite and positive positions. Any combination of first stroke and total stroke is available. Both rods fully retracted is first position. Port #1 Extends rod first stroke to second position. Port #2 Extends rod full stroke to third position. Port #3 Retracts both rods to first position. When ordering, second stroke must be specified as total stroke, as second Cylinder rod moves through both strokes. For example, if first stroke required is 4" and second stroke is 2", order should read: AP-3x4x6. 6" being the total stroke (4+2).

Bore Sizes Available: 1-1/2", 2", 2-1/2", 3" & 4".

NOTE: Options must be indicated for each stroke.

TANDEM - AIR CYLINDERS: TYPE: ET SINGLE ENDED TYPE: ETD DOUBLE ENDED

The basic construction of these Air Cylinders is identical to Type "E" and features two Cylinders in tandem having two pistons mounted on one common rod. Pneumatic operation with hydraulic control can be obtained by operating the rear Cylinder pneumatically and filling the front Cylinder with oil and piping its ports in series using a flow control valve. The output force of a single Cylinder can be almost doubled using a Tandem Cylinder and piping both rear ports together and both front ports together, which will apply the working pressure to both Cylinders at the same time. This is particularly useful when space limitations preclude the use of large bore Cylinders, and the force required is greater than that supplied by smaller bore units.

Bore Sizes Available: 1-1/2", 2", 2-1/2", 3" & 4".

Maximum Stroke Available:

Type "ET": 60".

Type "ETD": 40".

* For Brass Tube, add "BU" to part number

FAIL SAFE . SPRING RETURN - SINGLE ACTING
Available in all previous models except Types "ET" & "ETD". MAXIMUM STROKE AVAILABLE IS 10". These Cylinders can be supplied with the rods either normally retracted or extended by the spring. On SRF models, Front Head Rod Seals are normally not provided, but can be if requested.
SPECIFY:
SRF INDICATES SPRING IN FRONT END (AIR PUSH) ROD NORMALLY RETRACTED
SRR INDICATES SPRING IN REAR END (AIR PULL) ROD NORMALLY EXTENDED
SRFW INDICATES OPTIONAL STRONGER SPRING (For heavy duty applications only.)
SRRW INDICATES OPTIONAL STRONGER SPRING (For heavy duty applications only.)

CUSHIONS

LAST 1/2 INCH OF STROKE IS EFFECTIVELY CUSHIONED TO REDUCE SHOCK &
SPECIFY: NOISE. FULL REVERSE FLOW PROVIDED. CYLINDER LENGTH NOT AFFECTED.
FC (FRONT CUSHION)
RC (REAR CUSHION)
BC (CUSHION BOTH ENDS)

DOUBLE ROD PACKING
SPECIFY: DRP Two sets of rod seals in "A" Type cylinders - except 7/8" and 1-1/8" bore sizes.
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FAIL SAFE
SPECIFY: FS Spring installed in cylinder to retract rod should there be an air failure.
Dimensions are those of a Single Acting Cylinder.
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HIGH TEMPERATURE SEALS
SPECIFY: HTP Fluorocarbon compound (Viton) seals, temperature range of +10°F to +350°F .
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HOLLOW RODS
SPECIFY: M Hole thru rod available up to 12" stroke.

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NO TANG
SPECIFY: NT Cylinders available without Tang section (covered by dimension "E" minus "N").
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OVERSIZED ROD
SPECIFY: OS Larger diameter rod for column loading. Not available on Type ETD-11/2" bore.

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LOW FRICTION CYLINDER
SPECIFY: LF Available in "A" Type cylinders only. For extremely low friction at medium to high pressure.
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MAGNETIC PISTON
SPECIFY: RM To signal Hall Effect or Reed switches. Available on Type "A"&"E" cylinders.
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ROD WIPER
SPECIFY: WR Teflon wiper replaces the standard leather back-up ring in Types "A" & "E" cylinders only.
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POLYURETHANE BUMPERS
SPECIFY: PUBF For use on high speed Cylinder applications to reduce shock and noise
PUBR Where standard cushions can not be used. Made of 1/2" thick
PUBB Polyurethane and press fit between the head and piston

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HALL EFFECT SWITCHES (CSA "NRTL/C" Listed): ALLENAIR Hall Effect switches are designed to be used with our type "A"&"E" 1-1/8"thru 4" bore cylinders. The cylinders must be ordered with the "RM" option (adds 1" O.A.L. to "A" type). All switches have an LED indicator light, nine (9) foot leads, and an operating temperature range of - 22°F to +176 °F.

REED SWITCHES (CSA "NRTL/C" Listed)
ALLENAIR Reed switches are designed to be used
with our "A"&"E" type 1-1/8" thru 4" bore cylinders. Cylinders must be ordered with the "RM" option (adds 1" O.A.L. to "A" type). All switches have nine (9) foot hook up cable. Operating temperature range is - 22°F to +176°F. Models R02, R04 and R05 have an LED indicator light. Models R02, R03, R04 and R05 have MOV surge suppression.