Pneumatic Piston Rod Cylinders

Pneumatic piston rod cylinders—also known as air cylinders or pneumatic actuators—are devices that transform compressed air into linear movement. These cylinders contain a piston housed inside a chamber, and the motion of the rod generates the required force. Their compact design and light weight make them ideal for shorter stroke applications such as positioning, clamping, or ejecting smaller parts.

These cylinders work by using pressurized air to push the piston along its axis. In a single-acting pneumatic cylinder, air is introduced through one port, moving the piston in one direction. A spring mechanism returns the piston when the air is released. In contrast, double-acting pneumatic cylinders feature two ports, enabling controlled extension and retraction for more versatile motion control.

Types of Pneumatic Piston Cylinders

Single-Acting Cylinders: These use air pressure to move the rod in one direction, with a spring to retract it. They are ideal for operations that only need force in one direction, like ejection or part positioning.

Double-Acting Cylinders: Compressed air powers movement in both directions, giving precise bidirectional control. They are widely used in automation and pressing tasks due to their enhanced functionality.

Standard Piston Rod Cylinders: These cylinders feature an external rod extending from the chamber to apply linear force. Available in a variety of dimensions, they are suitable for use in compact automation systems, packaging lines, and material transfer applications.

Rodless Cylinders: These are designed to produce linear motion without a protruding rod, saving space. They are commonly used in tight environments such as AGVs (automated guided vehicles), conveyor units, and pick-and-place systems. Types include magnetic-coupling, cable-actuated, and slotted variants.

Choosing the Right Pneumatic Cylinder: Sizing & Specs

When selecting a pneumatic cylinder, it’s important to evaluate several factors to ensure performance and compatibility with your system:

  • Stroke Length: This determines how far the piston rod moves. Match it with the movement required by your process.
  • Bore Diameter: The cylinder’s internal diameter influences the output force. Larger bores produce more force, essential for heavy-duty tasks.
  • Operating Pressure: Ensure the cylinder can handle the air pressure levels used in your setup—common ratings include up to 1 MPa.
  • Mounting Style: Choose a mounting type—such as flange, foot, or clevis—that offers stable and secure installation for your equipment layout.

Common Applications for Pneumatic Piston Rod Cylinders

  • Manufacturing: Used in production lines for tasks like pressing, clamping, and aligning parts. They are especially valued for their precision and repeatability.
  • Packaging: Ideal for processes like pushing items into cartons, sealing, or labeling, thanks to their speed and reliability.
  • Material Handling: Employed to automate lifting, moving, and sorting of goods in warehouses and distribution centers.
  • Automotive: Crucial in automated assembly and testing systems, including robotic arms and welding stations.

Why Choose Pneumatic Resources Australia?

As a trusted supplier of pneumatic piston cylinders, Pneumatic Resources Australia provides a wide assortment of high-quality components to suit every application. Partnering with industry leader SMC, we offer durable and high-performance piston rod cylinders, including double-acting and compact designs.

We also stock essential accessories like flow regulators and DIN rail mounting brackets, giving you a complete solution for your pneumatic setups. Enjoy competitive pricing, nationwide delivery, and exceptional customer support when you shop with us. Explore our delivery details on our website and build your pneumatic systems with confidence. Place your order today with Pneumatic Resources Australia!

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Pneumatic Compact Cylinder - 20mm Bore, 25mm Stroke, CQ2 Series, Double Acting, SMC, CQ2A20-25DC

CQ2A20-25DC
Cylinders Compact single and double acting cylinders, considerably shorter than corresponding tie rod designs. Space and weight saving Magnetic piston Proof pressure 15bar Operating pressure range 0.05MPa (0.51kgf/cm2) min to 10bar max Supplied with tapered and parallel ports Temperature range (no freezing allowed) -10ºC to +70ºC (without auto switch), -10ºC to +60ºC (with auto switch) Internal female threaded rod ends Nitrile seals Lubrication not required Suitable for solid state switch D-M9PL
$98.87

Pneumatic Compact Cylinder - 20mm Bore, 25mm Stroke, CQ2 Series, Double Acting, SMC, CQ2A25-20D

CQ2A25-20D
The SMC standard double acting, single rod version of the CQ2 compact cylinder. It is available in bore sizes from 12mm to 100mm. It comes standard with male or female piston rod threads. It is possible to mount auto switches on any of the 4 surfaces. Auto switch capable Standard stroke range 5 to 100mm
$78.83

Pneumatic Compact Cylinder - 20mm Bore, 25mm Stroke, CQ2 Series, Double Acting, SMC, CQ2KB25-20D

CQ2KB25-20D
The SMC standard double acting, single rod version of the CQ2 compact cylinder. It is available in bore sizes from 12mm to 100mm. It comes standard with male or female piston rod threads. It is possible to mount auto switches on any of the 4 surfaces. Auto switch capable Standard stroke range 5 to 100mm
$149.30

Pneumatic Compact Cylinder - 20mm Bore, 25mm Stroke, CQS Series, Double Acting, SMC, CDQSB20-25D

CDQSB20-25D
CQS Cylinders The CQS Series of Compact Cylinders is available for those small bore cylinder applications. Both switch capable and non-switch capable body styles are the same. Space and weight saving Magnetic or non-magnetic pistons available Proof pressure 15 bar Internal thread rod ends Nitrile seals Clean Lines Flush fitting auto switch as standard Variety of switches and a variety of lead wire lengths CQS 12-25 mm Diameter
$93.68

Pneumatic Compact Cylinder - 20mm Bore, 25mm Stroke, CQU Series, Double Acting, SMC, CQUB20-25

CQUB20-25
CQUB2 20-40mm Diameter The SMC CQUB2 Series Compact Plate Cylinder is a lightweight, compact, easy-to-maintain cylinder model that offers machine builders a space-saving and power-saving cylinder. Available in sizes: 20, 25, 32 and 40 Clean line profile and easy to maintain The compact cylinder is suitable for use within general automation areas. The CQUB2 Series is up to 15% more efficient than MU Series versions, and is significantly narrower than piston-based CQ2 Series cylinders. The CQUB2 Series is also up to 36% lighter than MU Series cylinders. Series CQUB2 cylinder design enables auto switches to be mounted in one of four positions, and there is no protrusion of the auto switch from the cylinder body. For these non-cancellable (NC), and non-returnable (NR) products, Terms and Conditions apply. CQUB2 20-40mm/CVQB 32-40mm Diameter Machine builders have traditionally been restricted in terms of what cylinder options they have available. SMC have developed the CQU Compact Plate Cylinder and the CVQ Compact Cylinder with Valve, both of which offer the installer a cylinder that is compact and easy to install.
$169.40

Pneumatic Compact Cylinder - 20mm Bore, 30mm Stroke, C55 Series, Double Acting, SMC, CD55B20-30

CD55B20-30
The SMC C55 series pneumatic compact cylinder made from hard anodised aluminium alloy and it has in built magnet. It has stroke length of up to 30 mm including the benefits of standardised mounting dimensions. It achieves outstanding load performance due to its unique rubber bumper, piston wear ring, and rod bushing. Lightweight Conforms with the ISO 21287 standard It is possible to mount small auto switches on 4 surfaces
$120.36

Pneumatic Compact Cylinder - 20mm Bore, 30mm Stroke, CQ2 Series, Double Acting, SMC, CDQ2B20-30DZ

CDQ2B20-30DZ
Cylinders Compact single and double acting cylinders, considerably shorter than corresponding tie rod designs. Space and weight saving Magnetic piston Proof pressure 15bar Operating pressure range 0.05MPa (0.51kgf/cm2) min to 10bar max Supplied with tapered and parallel ports Temperature range (no freezing allowed) -10ºC to +70ºC (without auto switch), -10ºC to +60ºC (with auto switch) Internal female threaded rod ends Nitrile seals Lubrication not required Suitable for solid state switch D-M9PL
$90.15

Pneumatic Compact Cylinder - 20mm Bore, 30mm Stroke, CQ2 Series, Double Acting, SMC, CQ2A20-30D

CQ2A20-30D
The SMC CQ2 series compact cylinder has redesigned with a new body and it is made from hard anodised aluminium alloy. It is double acting, single rod with auto switch mounting groove. These cylinders are designed to operate using relatively low air pressure of up to 1.0 Map. Ambient and fluid temperature ranges from -10 to 60°C Fluid is air Lubrication not required Proof pressure 15 bar Lighter weight
$99.23

Pneumatic Compact Cylinder - 20mm Bore, 30mm Stroke, CQM Series, SMC, CQMB20-30

CQMB20-30
The SMC series CQM is a compact cylinder integrated with a guide rod and plate. The series is available in 20mm bore sizes with the same mounting dimensions as the CQ2. The guide rod and plate allow work to be directly mounted. The CQM series offers 4 times the lateral load resistance of the CQ2K and non-rotating accuracy of ±0.2°. Guide rod type compact cylinder 4 times the lateral load resistance of the CQ2K Non-rotating accuracy 0.2 or less
$118.90

Pneumatic Compact Cylinder - 20mm Bore, 30mm Stroke, CQS Series, Double Acting, SMC, CDQSB20-30D

CDQSB20-30D
CQS Cylinders The CQS Series of Compact Cylinders is available for those small bore cylinder applications. Both switch capable and non-switch capable body styles are the same. Space and weight saving Magnetic or non-magnetic pistons available Proof pressure 15 bar Internal thread rod ends Nitrile seals Clean Lines Flush fitting auto switch as standard Variety of switches and a variety of lead wire lengths CQS 12-25 mm Diameter
$95.10

Pneumatic Compact Cylinder - 20mm Bore, 30mm Stroke, CQS Series, Double Acting, SMC, CDQSB20-30DC

CDQSB20-30DC
The SMC CQS series compact cylinder is available for those small bore cylinder applications where saving space is a concern. The CQS offers standard long strokes in four bore sizes from 12 to 25mm. Square body shape gives flexibility for machine design Ideal for machine designs with small space requirements Allows installation close against a wall Compact foot bracket
$121.64

Pneumatic Compact Cylinder - 20mm Bore, 30mm Stroke, CU Series, Double Acting, SMC, CDU20-30A

CDU20-30A
The SMC CU series single rod, double acting free mount cylinder which saves space and allows direct and precise mounting. It has 20 mm of bore sizes with stroke lengths up to 30 mm. The options include auto-switch capabilities, free mount choices, recessed switch mounting grooves and rubber bumpers standard. Improved repeatability Male rod end thread Piston speed 50 to 500 mm/s
$305.43