Airtac PSB Single Acting Compact Cylinder PSB12X30U
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB12X30U is a single acting, push type (spring return) pen-size mini cylinder with a Ø12mm bore and 30mm 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
- Stroke30 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB12X30U
The AirTAC PSB12X30U is a JIS pen-size single-acting push cylinder, meaning air entering one M5x0.8 port extends the rod while an internal spring retracts it upon exhaust release. This fail-safe design ensures the rod returns home if air pressure drops, making it ideal for clamp-release and part-eject duties. It provides 42.9 N of net push at 0.5 MPa.
Built with a SUS304 stainless steel barrel and a slim Ø5 mm rod, this mini body saves space and weight in tight jigs. The U suffix indicates a 90-degree side air inlet for flat plumbing. A fixed TPU bumper at each end decelerates the stroke, but with real tooling mass at higher speeds, you should meter-out the exhaust or add an external shock absorber.
Airtac PSB Single Acting Compact Cylinder PSB12X30U Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB12X30U |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 30 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 PSB12X30U
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×30 | 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 PSB12X30U Is Used
Stamping Ejector
Pushes finished metal blanks out of a press die, using the spring-return to safely withdraw the pin when air is cut.
Package Diverter
Extends a lightweight gate arm to route small cartons on a packaging line, relying on fail-safe retraction to clear the path.
Clamp Release
Acts as a compact hold-down on an assembly fixture, extending to lock a part and springing back to free it for removal.
Is the Airtac PSB Single Acting Compact Cylinder PSB12X30U the Right Cylinder?
When sizing this 12 mm bore model, plan for a safe working load of about 26 N, which is roughly 60 percent of the 42.9 N net push at 0.5 MPa. For lighter tasks, stepping down to a 10 mm bore yields 29.8 N at 0.5 MPa; for heavier pushes, a 16 mm bore provides 74.8 N. Remember the internal spring sets a 0.2 MPa minimum pressure before motion begins. To order, confirm the 30 mm stroke, the U side inlet, and your mounting bracket.
For vertical lifts, this actuator handles about 2.2 kg with a sane 2:1 safety margin. Because the rod is only 5 mm thick, use an external linear bearing for off-axis loads. This specific unit lacks the -S suffix, so it has no sensor magnet.
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 PSB12X30U FAQ
This single-acting push cylinder delivers 42.9 N of net usable force at 0.5 MPa and 65.5 N at the 0.7 MPa maximum. The internal return spring dictates a 0.2 MPa minimum operating pressure before the rod can move, and the cylinder fails safely retracted if air is lost.
It uses a fixed TPU bumper at each end to decelerate the stroke over the last few millimeters. Because it is not adjustable, running at mid-to-high speeds with heavy tooling mass can bottom it out; in those cases, meter-out the exhaust or install an external shock absorber.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PSB Pen-Size Cylinders
Request a Quote for Airtac PSB Single Acting Compact Cylinder PSB12X30U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.