Airtac PSB Single Acting Compact Cylinder PSB12X15SR
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB12X15SR is a single acting, push type (spring return) pen-size mini cylinder with a Ø12mm bore and 15mm stroke. A single air port drives the push stroke; the built-in return spring resets the rod when air is released, so only one solenoid line is needed.
- BoreØ12 mm
- Stroke15 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PSB Single Acting Compact Cylinder PSB12X15SR
The AirTAC PSB12X15SR is a JIS pen-size single-acting push cylinder with a 12mm bore and 15mm stroke. Air entering the M5x0.8 port extends the Ø5mm rod, while an internal spring retracts it upon exhaust release. This fail-safe mechanism ensures the rod returns home if air pressure drops, making it ideal for clamp-release and part-eject tasks. It delivers 42.9 N of net push at 0.5 MPa and 65.5 N at 0.7 MPa.
Featuring a built-in piston magnet (-S) for position sensing with reed or electronic switches, this slim stainless steel body saves space in tight jigs. The fixed TPU bumper decelerates the stroke at both ends. Because the return spring opposes the air stroke, a minimum operating pressure of 0.2 MPa is required before motion begins.
Airtac PSB Single Acting Compact Cylinder PSB12X15SR Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB12X15SR |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 15 mm |
| Acting type | Single acting, push type (spring return) |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Return | Return spring (push by air) |
| Max standard stroke | Up to 60 mm |
The spring holds the rod retracted; applying air pushes the rod out, and removing air lets the spring return it. Forces below are the NET spring-deducted values from the AirTAC thrust table. Confirm against the product label before installation.
Net Push Force (Ø12mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 42.9 N |
| 0.7 MPa (max) | 65.5 N |
These are the usable push forces after the return spring is subtracted, taken directly from the AirTAC single-acting thrust table. Minimum operating pressure is set by the spring, so this model needs at least the lower pressure shown to move.
Model Code: Airtac PSB Single Acting Compact Cylinder PSB12X15SR
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×15 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| R / U / CB | Back cover: R axial inlet, U 90° side inlet, CB double clevis (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PB (double acting), PTB (single-acting pull), PBD (double rod), PBR (front-mount).
Where the Airtac PSB Single Acting Compact Cylinder PSB12X15SR Is Used
Stamping Ejector
Pushes stamped metal parts out of a die on a press line. The spring-return design guarantees the ejector pin retracts safely when air is removed.
Package Diverter
Acts as a slim sorting gate on a packaging conveyor. The fail-safe retract ensures the diverter pulls back to avoid jamming the main product flow.
Clamp Release
Holds a workpiece during machining by extending against a fixture. Exhausting the single air line instantly springs the clamp open for part removal.
Is the Airtac PSB Single Acting Compact Cylinder PSB12X15SR the Right Cylinder?
When sizing this 12mm bore model, consider the neighboring options. Stepping down to the Ø10 bore yields 29.8 N net push at 0.5 MPa, while stepping up to the Ø16 bore provides 74.8 N. This PSB12X15SR sits comfortably in the middle, offering a safe working load of about 26 N (roughly 60 percent of the 42.9 N rated figure to account for seal friction). For vertical lifts, plan to hoist approximately 2.2 kg to maintain a sane 2:1 safety margin.
Remember the internal spring sets a 0.2 MPa minimum pressure before the rod moves. The thin Ø5mm rod is built for coaxial thrust, so add an external guide if your application involves off-axis loads. To order, confirm the 12mm bore, 15mm stroke, S magnet, R axial inlet, and your preferred mounting bracket.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 mm (single-acting limit)
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 0.7 MPa operating pressure.
- check Allow for spring force in the stroke direction.
- check Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
Airtac PSB Single Acting Compact Cylinder PSB12X15SR FAQ
The net usable push force is 42.9 N at 0.5 MPa and 65.5 N at 0.7 MPa (the maximum operating pressure). Because an internal spring returns the rod, a minimum pressure of 0.2 MPa is required before the piston moves, and the rod fails safe to the retracted position on air loss.
It uses a fixed TPU bumper at each end to decelerate the stroke over the last few millimeters. At higher speeds with heavy tooling mass, meter-out the exhaust or add an external shock absorber. The built-in S magnet works with AirTAC reed or electronic switches for position sensing.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PSB Pen-Size Cylinders
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