Airtac PSB Single Acting Compact Cylinder PSB12X15U
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB12X15U 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
About the Airtac PSB Single Acting Compact Cylinder PSB12X15U
The AirTAC PSB12X15U is a JIS pen-size single-acting push cylinder with a 12mm bore and 15mm stroke. Air entering the single M5x0.8 port extends the Ø5mm rod, while an internal spring retracts it upon exhaust release. This design requires only one solenoid line, simplifying tubing and lowering pneumatic costs. It delivers 42.9 N of net push at 0.5 MPa and 65.5 N at 0.7 MPa, with the return spring force already deducted.
Built with a SUS304 stainless barrel and a slim mini body, it fits easily into tight jigs and light end-of-arm tooling. The U suffix indicates a 90-degree side air inlet for flat plumbing. A fixed TPU bumper at each end cushions the stroke. Plan for a safe working load of about 26 N (roughly 60% of the 0.5 MPa rating) to account for seal friction and smooth travel.
Airtac PSB Single Acting Compact Cylinder PSB12X15U Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB12X15U |
|---|---|
| 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 PSB12X15U
| 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 PSB12X15U Is Used
Part Ejection
Pushes finished metal parts out of a CNC machining center. The spring-return design ensures the ejector stays clear of the work area if the air supply fails.
Flap Folding
Extends to fold carton flaps on a packaging line. The 90-degree side inlet keeps the pneumatic plumbing flush against the machine frame.
Diverter Gate
Acts as a temporary push gate to sort small products on a conveyor. Air extends the rod to block or divert items, then the spring pulls it back automatically.
Is the Airtac PSB Single Acting Compact Cylinder PSB12X15U the Right Cylinder?
This 12mm bore provides 42.9 N net push at 0.5 MPa. If you need less force, the 10mm bore offers 29.8 N at the same pressure; for heavier tasks, the 16mm bore yields 74.8 N. The internal spring sets a 0.2 MPa minimum pressure before motion begins and ensures the rod fails-safe to a retracted position if air pressure drops. Confirm your ordering essentials: 12mm bore, 15mm stroke, U side inlet, and no magnet. The M10x1.0 rod-end thread mounts your tooling securely.
Because the rod is a slender Ø5 mm, use an external guide or linear bearing for off-axis loads over this 15mm stroke. The fixed TPU bumpers only decelerate the last few millimeters; with heavy tooling mass at mid speed, meter-out the exhaust or add an external shock absorber. This cylinder lifts about 2.2 kg vertically with a sane 2:1 margin.
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 PSB12X15U FAQ
The net push force is 42.9 N at 0.5 MPa and 65.5 N at 0.7 MPa (maximum pressure). Because the internal return spring opposes the air stroke, a minimum of 0.2 MPa is required before the rod moves. The spring also guarantees the rod retracts on air loss.
It uses a fixed TPU bumper at each end to decelerate the stroke over the last few millimeters. It is not adjustable. When moving real tooling mass at higher speeds, meter-out the exhaust or add an external shock absorber to prevent bottoming out.
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 PSB12X15U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.