Airtac PSB Single Acting Compact Cylinder PSB12X5R
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB12X5R is a single acting, push type (spring return) pen-size mini cylinder with a Ø12mm bore and 5mm 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
- Stroke5 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB12X5R
The AirTAC PSB12X5R is a JIS pen-size single-acting push cylinder with a 5 mm stroke. Air entering the M5x0.8 port extends the Ø5 mm rod, while an internal spring retracts it upon exhaust release. This single-line operation simplifies valving and tubing, offering about 42.9 N of net push at 0.5 MPa. The slim SUS304 stainless body fits easily into tight jigs.
Because the return spring constantly opposes the air stroke, a minimum operating pressure of 0.2 MPa is required before motion begins. The fail-safe design ensures the rod stays retracted if air pressure drops. A fixed TPU bumper cushions the stroke ends, and the R axial inlet keeps plumbing perfectly in-line.
Airtac PSB Single Acting Compact Cylinder PSB12X5R Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB12X5R |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 5 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 PSB12X5R
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×5 | 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 PSB12X5R Is Used
Short-Stroke Part Ejector
Pushes finished small parts off a machining fixture in tight spaces, relying on the spring to safely retract the pin when air is cut.
Package Diverter Gate
Acts as a compact diverter arm on a packaging line, using the 42.9 N push to nudge light cartons onto a side track.
Clamp Release Mechanism
Provides a brief 5 mm push to release a secondary clamp in an assembly jig, returning home automatically on exhaust.
Is the Airtac PSB Single Acting Compact Cylinder PSB12X5R the Right Cylinder?
This 12 mm bore provides 42.9 N net push at 0.5 MPa and 65.5 N at 0.7 MPa. If you need less force, the Ø10 bore offers 29.8 N at 0.5 MPa; for heavier tasks, the Ø16 bore yields 74.8 N. Plan for a safe working load of roughly 26 N, which accounts for seal friction at 60 percent of the 0.5 MPa rating.
The internal spring dictates the 0.2 MPa minimum pressure and guarantees fail-safe retraction. With a 5 mm stroke, the slender Ø5 mm rod handles coaxial thrust well, but always avoid side loads. Confirm your ordering essentials: 12 mm bore, 5 mm stroke, no magnet, R axial inlet, and your preferred mount.
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 PSB12X5R FAQ
The net usable push force is 42.9 N at 0.5 MPa and 65.5 N at 0.7 MPa. Because the internal return spring opposes the air stroke, a minimum operating pressure of 0.2 MPa is required to move the rod.
A fixed TPU bumper decelerates the rod at the stroke ends. If air loss occurs, the internal spring pulls the rod to a fail-safe retracted position. For higher speeds with heavy tooling mass, meter-out the exhaust or add an external shock absorber.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC PSB Pen-Size Cylinders
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