Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SR
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SR 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 PSBR12X30SR
The AirTAC PSBR12X30SR is a single-acting push pen cylinder that extends via air pressure and retracts via an internal spring. It provides 42.9 N of net push force at 0.5 MPa and 65.5 N at 0.7 MPa. The internal return spring ensures the rod moves safely back to its home position whenever air pressure is lost.
This model features a SUS316L stainless barrel in a slim mini body, saving space on tight jigs and light end-of-arm tooling. It bolts directly to a fixture via its front-cover M5x0.8 thread, while the separate M5x0.8 air port handles the pneumatic supply. A fixed TPU bumper cushions the stroke ends. The built-in magnet (-S) supports reed or electronic switches for position sensing.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SR Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SR |
|---|---|
| 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 PSBR12X30SR
| 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 PSBR12X30SR Is Used
Part Ejection
Uses the spring-return push to eject small machined components from a fixture, ensuring the arm safely retracts if air pressure drops.
Panel Pusher
Bolts directly via the front-cover thread to push lightweight panels into a testing slot, saving space on dense assembly jigs.
Clamp Release
Applies 42.9 N of thrust to hold a carton flap for taping, with the spring automatically opening the clamp when the air supply stops.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X30SR the Right Cylinder?
This 12 mm bore yields 42.9 N net push at 0.5 MPa. Stepping down to a 10 mm bore drops the output to 29.8 N, while moving up to a 16 mm bore raises it to 74.8 N. Plan for a safe working load of about 26 N (roughly 60% of the 0.5 MPa figure) to account for seal friction and smooth travel. With a 2:1 margin, it lifts about 2.2 kg vertically.
The direct front-cover M5x0.8 thread simplifies mounting without extra brackets. The internal spring sets a 0.2 MPa minimum pressure before motion begins and guarantees fail-safe retraction. The thin Ø5 mm rod handles coaxial thrust well, but over long strokes or off-axis loads, add an external guide or linear bearing 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 PSBR12X30SR FAQ
It delivers 42.9 N of net push at 0.5 MPa and 65.5 N at 0.7 MPa. Because an internal spring returns the rod, a minimum pressure of 0.2 MPa is required before the cylinder can extend, and the rod fails safe to the retracted position on air loss.
It mounts directly via an M5x0.8 front-cover thread, separate from the M5x0.8 air port. The SUS316L stainless barrel resists damp environments, and the built-in magnet works with 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 usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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