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

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”.

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, A NON-ROTATING CYLINDER 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.