Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25SR
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25SR 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 PSBR10X25SR
The AirTAC PSBR10X25SR is a JIS pen-size single-acting push cylinder that bolts directly via its front-cover M4x0.7 thread. Air entering the M5x0.8 port extends the 4 mm rod, while an internal spring retracts it. You get 29.8 N of net push at 0.5 MPa and 45.5 N at 0.7 MPa.
This fail-safe retract design needs just one solenoid line and returns home on air loss. The SUS316L stainless barrel suits damp environments, and a fixed TPU bumper cushions the stroke ends. Plan for a safe working load of about 18 N (roughly 60 percent of the 0.5 MPa figure) to account for seal friction.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25SR Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25SR |
|---|---|
| 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 PSBR10X25SR
| 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 PSBR10X25SR Is Used
Part Ejector
Pushes lightweight machined components out of a fixture. The fail-safe spring retract ensures the ejector pin clears the workspace if air pressure drops.
Panel Pusher
Indexes thin panels on a conveyor using the direct front mount. The SUS316L barrel handles washdown environments reliably.
Clamp Release
Overrides a mechanical latch to free a held part. The single-acting push design requires only one air line to actuate the release mechanism.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X25SR the Right Cylinder?
This 10 mm bore provides 29.8 N net push at 0.5 MPa. Stepping down, an 8 mm bore yields 18.7 N; stepping up, a 12 mm bore gives 42.9 N. The direct M4x0.7 front mount saves space, but ensure proper thread engagement when bolting from the bottom. The internal spring sets a 0.2 MPa minimum pressure before motion begins.
The 25 mm stroke is well within the 60 mm limit for this bore. The -S suffix adds a piston magnet for reed or electronic switches. Because the 4 mm rod is slender, use an external guide for any off-axis loads to prevent binding.
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 PSBR10X25SR FAQ
The net push force is 29.8 N at 0.5 MPa and 45.5 N at the 0.7 MPa maximum. Because it is spring-return, a 0.2 MPa minimum pressure is required to overcome the spring before the rod extends.
It mounts directly via an M4x0.7 thread on the front cover, separate from the M5x0.8 air port. The -S suffix indicates a built-in piston magnet compatible with reed or electronic switches.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC PSBR Pen-Size Cylinders
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