Products > Cylinders > Small Bore Cylinders

SMALL BORE
CYLINDERS

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DESIGN FEATURES

These Cylinders are not throw away type. Seals can easily be replaced when required after a long trouble-free life. They have corrosion resistant brass tubing, precision honed (16 Micro or better) with cross hatch lubricant retaining pattern. Front and Rear Aluminum Heads are precision machined and threaded into the tube. SMALL BORE CYLINDERS 1/2”, 3/4” & 1-1/8” BORE SIZES OPTIONS, DIMENSIONS & MOUNTS
Pressure Rating: 150 P.S.I. Pneumatic or Hydraulic. Breakaway: Approximately 5-10 P.S.I.


BASIC CONSTRUCTION
1/2” & 3/4” BORES: Feature low friction U-Cups on the Duronze Piston, coupled with a 416 Stainless Rod. These Cylinders are available as standard in half-inch increments to 6” stroke. 1-1/8” BORE: Features an all-O-Ring construction. Aluminum Piston ground and polished 416 stainless steel rod. Cylinders are available as standard in half-inch increments to 6” and inch increments to 12” stroke. Special strokes available in all bore sizes. Up to 14” maximum on 1-1/8” bore and 10” maximum on 1/2” & 3/4”
bores.


TYPE SM SINGLE ENDED
An all purpose light duty pneumatic Cylinder designed for nose mounting with rear face porting. 1-1/8" Bore is also available in 300 Series Stainless Steel, TYPE SSSM. See catalog SS200.

Allenair - Small Bore Cylinders - TYPE SM SINGLE ENDED

TYPE SMD DOUBLE ENDED
Similar to above except there is a single rod which protrudes from both ends and as one end retracts the other extends. 1-1/8" Bore is also available in 300 Series Stainless Steel, TYPE SSSMD. See catalog SS200.

Allenair - Small Bore Cylinders - TYPE SMD DOUBLE ENDED

TYPE SMT SINGLE ENDED
Cylinder is designed for Clevis and various other universal mountings.

Allenair - Small Bore Cylinders - TYPE SMT SINGLE ENDED

TYPE SP SINGLE ENDED
Similar to Type "SM" except a square front head is used, thereby eliminating the need for a separate Foot Mount.

Allenair - Small Bore Cylinders - TYPE SP SINGLE ENDED

TYPE SPD DOUBLE ENDED
Similar to Type "SMD" except a square front heads have been incorporated, eliminating the need for separate Foot Mounts.

Allenair - Small Bore Cylinders - TYPE SPD DOUBLE ENDED

OPTIONS, DIMENSIONS & MOUNTS

ALL DIMENSIONS WILL BE FOUND ON THE FOLLOWING PAGE, STANDARD OPTIONS (FOR ALL BORE SIZES)SPECIAL OPTIONS & DESIGNS SEE PAGES 14 & 16 • POLYURETHANE BUMPERS SEE PAGE 14

  • SPECIFY: HTP FOR HIGH TEMPERATURE SEALS
    These seals are a fluorocarbon compound (viton) and have an operating temperature range of +10°F to +350°F. They will function at temperatures up to +400°F with reduced life.
  • SPECIFY: DRP FOR FRONT HEAD DOUBLE ROD SEALS:
    A second set of rod seals are available for heavy duty and hydraulic applications.
  • SPECIFY: OS FOR OVERSIZED ROD: Larger diameter rod for column loading. Available on 1-1/8” Bore only.
  • SPECIFY: SRF FOR SPRING RETURN, SPRING IN FRONT END (AIR PUSH)
  • SPECIFY: SRR FOR SPRING RETURN, SPRING IN REAR END (AIR PULL)

APPROXIMATE SPRING FORCES IN POUNDS

Allenair - Small Bore Cylinders - TYPE SPD DOUBLE ENDED

Maximum stroke available on Spring Return Cylinders is 3” on 1/2” and 3/4” Bores and 6” on 1-1/8” Bore. ALL MOUNTS ORDERED SEPARATELY FROM THE FOLLOWING PAGE.

SMALL BORE
CYLINDERS



NOTE: *1/2” Bore Front Heads have a 1/16 N.P.T., supplied with a 1/8 N.P.T. adapter. MOUNTING NUTS ARE SUPPLIED EXCEPT WHEN SWIVEL BRACKETS ARE ORDERED.

SMALL BORE CYLINDER MOUNTING BRACKETS

Allenair - Small Bore Cylinders - TYPE SPD DOUBLE ENDED
SM-29 FLANGE MOUNT
When mounting on rear of Cylinder, Tang will extend beyond flange . Tang can be provided flush when required at slight extra charge.
SM-45 ROD CLEVIS, NUT & PIN

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