CYLINDERS

DESIGN FEATURES & MATERIALS

BASIC CONSTRUCTION (DOUBLE ACTING)

TYPE A SINGLE ENDED • All Type “A” Cylinders, 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” & 1-1/8” Bores. FOR DIMENSIONS & MOUNTS SEE PAGES 17 - 21 Pressure Rating: 150 P.S.I. Pneumatic, 350 P.S.I. Hydraulic. Breakaway: Approximately 5 to 8 P.S.I. Bore Sizes Available: 7/8”, 1-1/8”, 1-1/2”, 2”, 2-1/2” & 3”.	FOR DIMENSIONS AND MOUNTS SEE PAGES 17 thru 21.

TYPE C SINGLE ENDED • Type “C” Cylinders are constructed using low friction “U” Cup Seals and include a wear strip on the piston with the exception of the 4”(it has no wear strip). These Cylinders are primarily used on low pressure applications and where low minimum breakaway is required. Pressure Rating: 150 P.S.I. Pneumatic only. Breakaway: Approximately 2 to 3 P.S.I. Bore Sizes Available: 7/8”, 1-1/8”, 1-1/2”, 2”, 2-1/2”, 3 & 4”.	FOR DIMENSIONS AND MOUNTS SEE PAGES 17 thru 21.

TYPE E SINGLE ENDED • Type “E” 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 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 P.S.I. Pneumatic, 500 P.S.I. Hydraulic. Breakaway: Approximately 10 to 15 P.S.I. Bore Sizes Available: 7/8”, 1-1/8”, 1-1/2”, 2”, 2-1/2”, 3” & 4”. 5” BORE AVAILABLE-Consult Factory for Details.	FOR DIMENSIONS AND MOUNTS SEE PAGES 17 thru 21.

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CYLINDERS

10 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: TYPES AD, CD & ED These 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.

Double Ended - Stainless steel/Brass Cylinder: Types AD, CD & ED

BACK-TO-BACK: TYPES ABB, CBB & EBB These 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.

Back-To-Back - Stainless steel/Brass Cylinder: Types ABB, CBB & EBB

INTEGRAL REAR SWIVEL: 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 Rear Swivel - Stainless steel/Brass Cylinder: Types AN, CN & EN

INTEGRAL SQUARE HEAD:
TYPES AS, CS & ES/
TYPES ASD, CSD & ESD/
These 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.

Integral Square Head - Stainless steel/Brass Cylinder: Types AS, CS & ESPES TYPES ASD, CSD & ESD

CYLINDERS

THREE POSITION:
TYPES: AP, CP & EP SINGLE ENDED
TYPES: APD, CPD & EPD DOUBLE ENDED
These 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 are 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.

Three Position - Stainless steel/Brass Cylinder : Types: AP, CP & EP Single Ended Types: APD, CPD & EPD Double Ended

FOR DIMENSIONS & MOUNTS SEE
PAGES 17 - 21

TANDEM:
TYPE: ET SINGLE ENDED
TYPE: ETD DOUBLE ENDED
The basic construction of these Cylinders is identical to Type “E” and feature 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”.

TANDEM - Stainless steel/Brass Cylinder: Type: ET Single Ended Type: ETD Double Ended

FOR DIMENSIONS & MOUNTS
SEE PAGES 17 - 21

ORDERING PROCEDURE

EXAMPLE: E-3 x 4-BC-HTP-IB-OS-RG	NOTE: When ordering
BC..............................Cushion Both Ends	back-to-back and three
HTP............................High Temperature (Viton) Seals	position cylinders, options must
IB ...............................AB Accessory Pin installed in both ends	be specified for each cylinder.
OS ............................Oversized Rod	All mounts are ordered
RG ............................Outboard Rod Guide installed	separately. See pages 20 & 21.

NON ROTATING:
TYPE: AR, ARD

The Piston Rod Assembly of conventional double acting air and hydraulic cylinder will rotate a few degrees with each operation of the cylinder. Where this is objectionable and where the piston rod cannot be guided externally, NON-ROTATING CYLINDERS should be used.

ALLENAIR TYPES "AR" and "ARD" CYLINDERS are built with two (2) guide rods extending between cylinder heads and thru piston guide rod bearings. This prevents piston rod rotation completely. Service life of these cylinders is excellent, in no way different from our conventional construction. All other construction features are the same as our standard cylinders.

BORE SIZES: 2", 3" and 4" STROKES: Same as for other Allenair Cylinders up to 20" Maximum

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CYLINDERS

12

ALL STAINLESS STEEL CYLINDERS

DESIGNED TO SOLVE CORROSION & ENVIRONMENT PROBLEMS

BY MANUFACTURING ALL METAL PARTS FROM 300 SERIES STAINLESS STEEL

TYPES : SSA, SSE, SSAN, SSEN, SSAP, SSEP, SSABB, SSEBB, SSET SINGLE ENDED

TYPES : SSAD, SSED, SSAPD, SSEPD, SSETD DOUBLE ENDED

ALL Cylinder parts are manufactured from type 300 series stainless steel. Otherwise, they are identical in construction to our standard Types “A”, “AD”, “E” & “ED” Cylinders. Units are particularly recommended for use in the food and dairy industries and in highly corrosive atmospheres, such as found in the marine and chemical field.

Maximum Stroke Available: 130”
Bore Sizes Available: 7/8”, 1-1/8”, 1-1/2”, 2”, 2-1/2”, 3” & 4”.
For Stainless Steel Mounts consult factory.

REQUEST A COPY OF CATALOG NUMBER SS200 COVERING OUR COMPLETE
LINE OF 300 SERIES STAINLESS STEEL CYLINDERS.

FOR CUSHIONS,
SPECIFY:
FC (FRONT CUSHION)
RC (REAR CUSHION)
BC (CUSHION BOTH ENDS)

FOR SPRING RETURN,
SPECIFY:
SRF INDICATES SPRING IN FRONT END (AIR PUSH)
ROD NORMALLY RETRACTED
SRR INDICATES SPRING IN REAR END (AIR PULL)
ROD NORMALLY EXTENDED

HIGH TEMPERATURE SEALS
SPECIFY HTP

NOTE: Stainless Steel Mounting Nuts available upon request.
For Special Options consult factory.

CYLINDERS
• OPTIONS

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.)

APPROXIMATE SPRING FORCES IN POUNDS

Notes: Applies to SRF and SRFW models only.

CUSHIONS

LAST 1/2 INCH OF STROKE IS EFFECTIVELY CUSHIONED TO REDUCE
SHOCK & NOISE.

SPECIFY:

FULL REVERSE FLOW PROVIDED. CYLINDER LENGTH NOT AFFECTED.

FC (FRONT CUSHION)

CUSHION ADJUSTING SCREW LOCATIONS

RC (REAR CUSHION)

BC (CUSHION BOTH ENDS)

NOTES:

1) Dim. B cushion screw shown fully closed.
2) Not available on Spring Return Cylinders.
3) Non-Standard Cushion Adjusting Screw
locations available at slight additional cost.

SINGLE ENDED	DOUBLE ENDED

NOTES:
1) Fixed Cushions are INTERNAL.
2) Tandem Cylinders - Cushions installed on Rear Cylinder Only.
3) Three Position Cylinders - Rear Cushion of Front Cylinder not available.

ADJ = ADJUSTABLE CUSHION AVAILABLE
FX = FIXED CUSHION ONLY AVAILABLE
NA = NO CUSHION AVAILABLE

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CYLINDERS
• OPTIONS

14

DOUBLE ROD PACKING
SPECIFY:	DRP	Two sets of rod seals in "A" Type cylinders - except 7/8” and 1-1/8" bore sizes.

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.

HIGH TEMPERATURE SEALS
SPECIFY:	HTP	Fluorocarbon compound (Viton) seals, temperature range of +10°F to +350°F .

HOLLOW RODS
SPECIFY:	M	Hole thru rod available up to 12” stroke.

NO TANG
SPECIFY:	NT	Cylinders available without Tang section (covered by dimension “E” minus “N”).

OVERSIZED ROD
SPECIFY:	OS	Larger diameter rod for column loading. Not available on Type ETD#1-1/2” bore.

LOW FRICTION CYLINDER
SPECIFY:	LF	Available in “A” Type cylinders only. For extremely low friction at medium to high pressure.

MAGNETIC PISTON
SPECIFY:	RM	To signal Hall Effect or Reed switches. Available on Type “A” & “E” cylinders.

ROD WIPER
SPECIFY:	WR	Teflon wiper replaces the standard leather back-up ring in Types “A” & “E” cylinders only.

POLYURETHANE BUMPERS
SPECIFY:	PUBF PUBR PUBB	For use on high speed Cylinder applications to reduce shock and noise Where standard cushions cannot be used. Made of 1/2” thick Polyurethane and press fit between the head and piston
PUBF BUMPER INSTALLED IN FRONT • PUBR BUMPER INSTALLED IN REAR PUBB BUMPER INSTALLED BOTH ENDS Available on all Type Cylinders and Bore sizes except Spring Return Cylinders and Cylinders having Accessory Pins, Bleeder Valves or Cushions. Adds 1/2” of length for each bumper. ACCESSORIES: For valuable complementary accessories used with Allenair Cylinders see pages 42 - 45.

CYLINDERS
• OPTIONS

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.

NOTES:
1) PNP output is Sourcing
2) NPN output is Sinking
All models require a mounting strap purchased as a
separate item based on the cylinder bore size.

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.

Models R01 - R04 include mounting bracket P/N RMB2.
Order mounting strap based on cylinder bore size as shown below.

Model R05 supplied with a universal mounting bracket and strap covering all bore sizes (1-1/8 thru 4”) P/N RMB1

STANDARD OPTIONS FOR ALL TYPES & BORE SIZES EXCEPT WHERE NOTED. (AVAILABLE AT EXTRA COST.)

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CYLINDERS
• OPTIONS

16

REED SWITCHES
Models R01 - R04	Model R05

MODIFICATIONS : PLEASE CONSULT FACTORY	SPECIFY
Listed below are some of the many modifications Allenair makes daily. RODS:
Non-Standard Rod Extensions (“H” Dim.) Non-Standard Rod Threads (“CC” Dim.) Non-Standard Rod Thread Length (“J” Dim.) Female Threads In Rod	Length Required Size Required Length Required Size Depth Required
No Threads on Rod Complete Special Rod End Non-Standard Wrench Flats Special Rod Material	No Thread Print Required Location & Size Material Required
HEADS:
Non-Standard Port Location(s) Non-Standard Cushion Screw Location(s) Extra Ports Non-Standard Hole In Tang NOTE: The Port Sizes shown in the dimension drawings are the largest available.	Print Required Print Required Print Required Size & Location Required
LISTED BELOW ARE SPECIAL CODES WE USE WHENEVER A SPECIAL CYLINDER (CS) IS ORDERED. NOT ALL CODES ARE LISTED - ONLY THE MOST COMMON

CODE	DESCRIPTION

B C CB CH CS D DRP EPF EPR EPB F FS	Sp. "H" Dimension Sp. "J" Dimension Sp. "H" & "J" Dimensions Sp. "H" & "J" For Cyl-Check Sp. Per Customers Specs. Sp. "CC" Dimension Double Rod Packing Extra port in Front Extra port in Rear Extra port Both Ends Non-standard Port Location Fail Safe W/Spring In Front

CODE	DESCRIPTION

G GB GF GR H HTP IB IF IR J K KR	No Rod Threads No Rod Threads Both Ends No Rod Threads Front End No Rod Threads Rear End Sp. Per Customers Drawing Hi-Temp. Packings “AB” Pin Both Ends “AB” Pin Front End “AB” Pin Rear End Special Tail Female Thread In Rod Sp. “H” & “J” For K & KR Kits

CODE	DESCRIPTION

L LF M NT Q RB RF RM RR RG U W WR	303 Stainless Steel Rod Low Friction Cylinder Hollow Rod NoTang Stainless Steel Snap Ring Bleeder Valve Both Ends Bleeder Valve Front End Magnet On Piston Bleeder Valve Rear End Outboard Rod Guide Steel Tube Stronger Spring Rod Wiper

MATERIALS: Special seal compounds are available for a wide range of fluid media and environments. Tubes, Heads, Pistons and Rods can be supplied plated, hard coated or in other materials. Please consult the factory for special requirements, stating quantity required.
SPECIAL DESIGNS: Many times Allenair is able to change the standard configuration of our Cylinders to meet Customer’s special requirements. A print from the Customer is needed so we can evaluate and properly quote such specials. Internal Non-Rotating Rod Cylinders can be made in 2”, 3” and 4” bore sizes with maximum stroke of 20”.
PLEASE CONSULT FACTORY ON THE ABOVE SPECIALS STATING QUANTITIES REQUIRED.

CYLINDERS • DIMENSIONS
	TYPES A, C & E SINGLE ENDED TYPES AD, CD & ED DOUBLE ENDED 5-3/8” on Single Ended Cylinders having Tang section, except types AN, CN & EN. On Oversize Models, H=1-3/8” & J=1-1/4” **3/4”-16 both ends on Types “A” & “E” 3/4”-16 Rear and 7/8”-14 Front on Type “C”. Omit dimension E when laying out Cylinder with Tang section omitted. N dimension remains except on 7/8”, 1-1/8” and 4” bores.	17

CYLINDERS
• DIMENSIONS

18

TYPES AN, CN & EN INTEGRAL REAR SWIVEL

FOR ALL DIMENSIONS NOT LISTED, SEE TABULATIONS ON PAGE 17

TYPES ABB, CBB & EBB BACK-TO-BACK

FOR ALL DIMENSIONS NOT LISTED, SEE TABULATIONS ON PAGE 17

CYLINDERS • DIMENSIONS
	TYPES AS, CS & ES SINGLE ENDED TYPES ASD, CSD & ESD DOUBLE ENDED FOR ALL DIMENSIONS NOT LISTED, SEE TABULATIONS ON PAGE 10. TYPES AP, CP & EP TYPES APD, CPD & EPD TYPES AP, CP & EP TYPES APD, CPD & EPD FOR DIMENSIONS NOT LISTED, SEE TABULATIONS ON PAGE 17	19

CYLINDERS
• MOUNTS

20

MOUNTING BRACKETS & DIMENSIONS

*1-1/8” bore Type “C” Cylinders require OS Mount or Mounting Nut on front and standard on rear.
**AII Single Ended OS Cylinders take standard Mounts or Mounting Nuts on rear end.

MOUNTING NUTS
Mounting Nuts supplied only with
Flange or Foot Mounts and is in-
cluded in the price of those Mounts.
However, they may be purchased as a
separate item.

MOUNTING BRACKET DIMENSIONS

FOOT MOUNT NT OPTION SUGGESTED WHEN USING FRONT FOOT MOUNT ONLY

FLANGE MOUNT Front or Rear • NT Option suggested • J2 Option suggested provides Tang flush with flange mounting surface.