Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X10SU
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X10SU 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 Ø8mm bore, 10mm stroke; the return spring resets the rod when air is released.
- BoreØ8 mm
- Stroke10 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 PSBR8X10SU
The AirTAC PSBR8X10SU is a JIS pen-size single-acting push cylinder with a 10mm stroke and a built-in magnet. Feeding air to the M5x0.8 port extends the rod, while an internal spring retracts it automatically. You get 18.7 N of net push at 0.5 MPa, and the fail-safe spring ensures the rod pulls back home if air pressure drops.
This slim mini body features a SUS316L stainless barrel and bolts directly to a fixture via the front-cover M4x0.7 thread. The U suffix adds a 90-degree side inlet for flat plumbing. Because the return spring sets a minimum pressure of 0.2 MPa, plan for a safe working load of about 11 N (roughly 60 percent of the 0.5 MPa rating) to account for seal friction. The fixed TPU bumper decelerates the stroke's final millimeters, and the -S magnet supports reed or electronic switches.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X10SU Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X10SU |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø8 mm |
| Rod diameter | Ø4 mm |
| Stroke | 10 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 (Ø8mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 18.7 N |
| 0.7 MPa (max) | 28.7 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 PSBR8X10SU
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 8 | Bore size in mm. |
| ×10 | 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 PSBR8X10SU Is Used
Panel Pusher
Uses the direct front mount to push light panels out of a machining cell, relying on the spring to retract safely on air loss.
Part Ejector
Extends briefly to flick small plastic parts off a belt, with the 90-degree side inlet keeping the plumbing flush against the conveyor frame.
Clamp Release
Overcomes a light spring clamp to release a workpiece, providing 11 N of safe working force before retracting into the pen-size body.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X10SU the Right Cylinder?
This 8mm bore provides 18.7 N net push at 0.5 MPa (28.7 N at the 0.7 MPa maximum). If you need less force, the 6mm bore yields 10.6 N; if your jig requires more power, step up to the 10mm bore for 29.8 N. The direct M4x0.7 front-mount thread eliminates extra brackets, and the 90-degree side inlet keeps hoses close to the machine frame.
Remember the fail-safe retract design requires only one solenoid line. The thin 4mm rod handles coaxial thrust well, but you should add an external guide for any off-axis loads. Confirm your porting and switch type when ordering.
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 PSBR8X10SU FAQ
The net push force is 18.7 N at 0.5 MPa and 28.7 N at the 0.7 MPa maximum. Because an internal return spring is used, a minimum pressure of 0.2 MPa is required before the rod extends, and the cylinder fails safely retracted if air drops.
The cylinder bolts directly via an M4x0.7 front-cover thread, saving space without extra brackets. The built-in -S magnet works with reed or electronic switches, and the SUS316L stainless barrel suits damp environments.
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