
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X10U 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.
The AirTAC PSBR8X10U is a single-acting push pen cylinder that extends via one M5x0.8 air port and retracts automatically via an internal spring. It supplies 18.7 N of net push at 0.5 MPa, reaching 28.7 N at the 0.7 MPa maximum. If air pressure drops, the spring ensures a fail-safe retracted state.
This slim mini body features a SUS316L stainless barrel and bolts directly to a fixture via the M4x0.7 front-cover thread. A fixed TPU bumper decelerates the stroke near the ends. Plan for a safe working load of about 11 N, which allows a smooth 60 percent margin of the rated 0.5 MPa force.
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR8X10U |
|---|---|
| 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.
| 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.
| 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).
Uses the direct front mount to push light panels from a jig, relying on the spring to retract safely on air loss.
Ejects small parts off a conveyor line with 18.7 N net push, while the 90-degree side inlet keeps plumbing flat.
Briefly pushes a clamp open to free a component, letting the internal spring pull the 4 mm rod back home.
This 8 mm bore with a 10 mm stroke yields 18.7 N net push at 0.5 MPa. Stepping down to a 6 mm bore gives 10.6 N, while moving up to a 10 mm bore provides 29.8 N. The internal return spring requires at least 0.2 MPa before motion begins. The direct front mount saves space, and the U back cover provides a 90-degree side inlet for flat plumbing.
The thin 4 mm rod is built for coaxial thrust. Over this 10 mm stroke, avoid side loads to prevent rod bending. Confirm your ordering code specifies the correct M4x0.7 front-mount thread and the side-inlet configuration.
Quick checklist
The net push force is 18.7 N at 0.5 MPa and 28.7 N at the 0.7 MPa maximum. The internal return spring sets a 0.2 MPa minimum pressure before the rod extends.
It mounts directly via an M4x0.7 thread on the front cover, eliminating separate brackets. The barrel is SUS316L stainless steel, suited for damp environments, and a fixed TPU bumper cushions the stroke ends.
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