Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25U
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25U is a single acting, push type (spring return) pen-size mini cylinder with direct front-cover mounting (M4×0.7 thread). A single air port drives the push stroke on a Ø10mm bore, 25mm stroke; the return spring resets the rod when air is released.
- BoreØ10 mm
- Stroke25 mm
- Port sizeM5×0.8
- Front-mount threadM4×0.7
- Acting typePush, single acting
- ReturnSpring
About the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25U
The AirTAC PSBR10X25U is a JIS pen-size single-acting push cylinder with a 10mm bore and 25mm stroke. It generates 29.8 N of net push at 0.5 MPa and 45.5 N at 0.7 MPa. A return spring automatically retracts the rod when air is released, ensuring fail-safe retraction on air loss. You only need one solenoid line to operate it.
This compact actuator features a SUS316L stainless barrel and a fixed TPU bumper that decelerates the rod near the end of its travel. The body mounts directly via an M4x0.7 front-cover thread, saving space in tight jigs. Air enters through an M5x0.8 port, and the U variant routes plumbing at a 90-degree side angle. Plan for a safe working load of about 18 N, which is roughly 60 percent of the 0.5 MPa rating.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25U Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25U |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 25 mm |
| Acting type | Single acting, push type (spring return) |
| Front-mount thread | M4×0.7 |
| 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 60 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 (M4×0.7); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
Net Push Force (Ø10mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 29.8 N |
| 0.7 MPa (max) | 45.5 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 PSBR10X25U
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 10 | 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 (M4×0.7). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Where the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25U Is Used
Part Ejector
Uses the spring-return push to eject small machined components from a fixture, safely retracting the 4mm rod if compressed air drops.
Panel Pusher
Bolts directly via the front M4x0.7 thread to press lightweight panels into alignment using 29.8 N of usable thrust.
Clamp Release
Applies forward pressure to hold a workpiece, letting the internal spring instantly retract the rod to release the part.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25U the Right Cylinder?
This 10mm bore provides 29.8 N net push at 0.5 MPa. If you need less force, the 8mm bore offers 18.7 N; for heavier duty, the 12mm bore yields 42.9 N. The direct M4x0.7 front-mount thread bolts straight to your fixture, and the spring ensures the rod pulls home safely on air loss.
The thin 4mm rod is built for coaxial thrust, so add an external guide for off-axis loads over this 25mm stroke. The fixed TPU bumper handles light end-of-stroke damping, but meter-out the exhaust if moving real tooling mass at mid speed. This U model uses a 90-degree side air inlet.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Bolt directly through the front cover (M4×0.7)
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 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 PSBR10X25U FAQ
It delivers 29.8 N net push at 0.5 MPa and 45.5 N at 0.7 MPa. The internal return spring sets a minimum operating pressure of 0.2 MPa before the rod can extend, and the cylinder fails safely retracted on air loss.
It mounts directly via an M4x0.7 front-cover thread, eliminating extra brackets. The slim pen-size body uses a SUS316L stainless barrel, and the U variant features a 90-degree side air inlet.
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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.
Related AirTAC PSBR Pen-Size Cylinders
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