Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SU
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SU is a single acting, push type (spring return) pen-size mini cylinder with direct front-cover mounting (M5×0.8 thread). A single air port drives the push stroke on a Ø12mm bore, 30mm stroke; the return spring resets the rod when air is released.
- BoreØ12 mm
- Stroke30 mm
- Port sizeM5×0.8
- Front-mount threadM5×0.8
- Acting typePush, single acting
- ReturnSpring
About the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SU
The AirTAC PSBR12X30SU is a JIS pen-size single-acting push cylinder with a 12mm bore and 30mm stroke. Air entering the M5x0.8 port extends the rod, while an internal spring retracts it. This fail-safe design ensures the rod returns home on air loss. It delivers 42.9 N of net push at 0.5 MPa and 65.5 N at 0.7 MPa.
The body features a SUS316L stainless barrel and a slim profile for tight jigs. You mount it directly via the front-cover M5x0.8 thread, eliminating extra brackets. The U suffix adds a 90-degree side inlet for flat plumbing. A fixed TPU bumper cushions the stroke ends. For practical sizing, plan for a safe working load of about 26 N, which is roughly 60 percent of the 0.5 MPa rating.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SU Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SU |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 30 mm |
| Acting type | Single acting, push type (spring return) |
| Front-mount thread | M5×0.8 |
| Port size | M5×0.8 |
|---|---|
| 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 75 mm |
The spring holds the rod retracted; applying air pushes the rod out, and removing air lets the spring return it. Front cover carries the mounting thread (M5×0.8); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
Net Push Force (Ø12mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 42.9 N |
| 0.7 MPa (max) | 65.5 N |
These are usable push forces after the return spring is subtracted, 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 PSBR Single Acting Square Head Compact Cylinder PSBR12X30SU
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 12 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| U / R | Back cover: U 90° side inlet or R axial inlet (bore-dependent). |
Mounting: direct front-cover thread (M5×0.8). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Where the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SU Is Used
Part Ejection
Uses the spring-return push to eject small machined components from a fixture, ensuring the arm safely retracts when air pressure drops.
Panel Pusher
Extends to push a lightweight panel into a testing cradle using the direct front-cover thread for tight vertical stacking.
Clamp Release
Applies 42.9 N of thrust to open a spring-loaded clamp, relying on the fail-safe retract to secure the part automatically.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SU the Right Cylinder?
Selecting this model means sizing both ways: the smaller 10mm bore yields 29.8 N at 0.5 MPa, while the larger 16mm bore provides 74.8 N. This 12mm bore gives 42.9 N, making it a solid middle ground. The internal spring sets a 0.2 MPa minimum pressure before motion begins. The direct front-mount thread bolts straight to your fixture, and the spring holds the rod retracted safely during power loss.
Confirm your ordering essentials: the S suffix includes a built-in piston magnet for reed or electronic switches, and the U suffix provides the 90-degree side air inlet. The thin Ø5 mm rod handles coaxial thrust well, but over long strokes or off-axis loads, add an external guide to prevent side load damage.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Bolt directly through the front cover (M5×0.8)
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 75 mm (single-acting limit)
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 Match bolt size and engagement to the front thread.
- check Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SU FAQ
The net push force is 42.9 N at 0.5 MPa and 65.5 N at the 0.7 MPa maximum. Because it is spring-return, a 0.2 MPa minimum pressure is required to overcome the spring and move the rod.
It mounts directly via the front-cover M5x0.8 thread. The SUS316L stainless barrel resists damp environments, and the S suffix allows use with reed or electronic switches.
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 PSBR Pen-Size Cylinders
Request a Quote for Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.