Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X25SU
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X25SU 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, 25mm stroke; the return spring resets the rod when air is released.
- BoreØ12 mm
- Stroke25 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 PSBR12X25SU
The AirTAC PSBR12X25SU is a JIS pen-size single-acting push cylinder with a 12mm bore and 25mm stroke. It provides 42.9 N of net push at 0.5 MPa and 65.5 N at 0.7 MPa. The internal return spring ensures the rod retracts safely on air loss, needing just one solenoid line.
A direct M5x0.8 front-cover mounting thread bolts straight to your jig, eliminating extra brackets. The SUS316L stainless barrel suits damp environments, while the M5x0.8 air port drives extension. A fixed TPU bumper absorbs end-of-stroke impact. 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 PSBR12X25SU Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X25SU |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 25 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 PSBR12X25SU
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 12 | Bore size in mm. |
| ×25 | 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 PSBR12X25SU Is Used
Part Ejector
Pushes finished parts off a machining fixture using 42.9 N of force, with the spring safely pulling the rod back when air cuts out.
Panel Pusher
Extends 25mm to index lightweight panels on a conveyor, bolted directly via the front M5x0.8 thread to save assembly space.
Clamp Release
Overcomes a mechanical clamp spring to release a workpiece, relying on the single-acting push design for simple one-line control.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X25SU the Right Cylinder?
This 12mm bore yields 42.9 N net push at 0.5 MPa. Dropping to a 10mm bore reduces output to 29.8 N, whereas stepping up to a 16mm bore raises it to 74.8 N. Size your payload accordingly, keeping in mind the thin 5mm rod requires an external guide for off-axis loads.
The fail-safe spring retract defaults to a closed position during air loss. The direct front-mount thread simplifies installation, and the U side inlet keeps plumbing flat. The built-in S magnet works with reed or electronic switches.
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 PSBR12X25SU FAQ
It delivers 42.9 N net push at 0.5 MPa and 65.5 N at 0.7 MPa. The internal return spring sets a 0.2 MPa minimum pressure before the rod moves, and the cylinder fails safely retracted on air loss.
It mounts directly via an M5x0.8 thread on the front cover, avoiding separate brackets. The SUS316L barrel resists moisture, and the built-in magnet pairs with reed or electronic switches for position sensing.
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
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