
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB10X25SR is a single acting, push type (spring return) pen-size mini cylinder with a Ø10mm bore and 25mm stroke. A single air port drives the push stroke; the built-in return spring resets the rod when air is released, so only one solenoid line is needed.
The AirTAC PSB10X25SR is a JIS pen-size single-acting push cylinder. Air entering the M5x0.8 port extends the Ø4 mm rod, while an internal spring retracts it upon exhaust release. This design requires only one solenoid line, cutting tubing complexity. It delivers 29.8 N of net push at 0.5 MPa and 45.5 N at 0.7 MPa.
Built with a SUS304 stainless barrel and slim body, it fits tight jigs. The included S option provides a piston magnet for position sensing. A fixed TPU bumper cushions the stroke ends. For practical sizing, plan for a safe working load of about 18 N, which leaves a margin for seal friction and smooth travel.
| Model | Airtac PSB Single Acting Compact Cylinder PSB10X25SR |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 25 mm |
| Acting type | Single acting, push type (spring return) |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| 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. Forces below are the NET spring-deducted values from the AirTAC thrust table. Confirm against the product label before installation.
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 29.8 N |
| 0.7 MPa (max) | 45.5 N |
These are the usable push forces after the return spring is subtracted, taken directly 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.
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| R / U / CB | Back cover: R axial inlet, U 90° side inlet, CB double clevis (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PB (double acting), PTB (single-acting pull), PBD (double rod), PBR (front-mount).
Pushes small stamped parts out of a die on a press line. The spring-return ensures the ejector pin clears the tool safely when air pressure drops.
Acts as a slim sorting gate on a packaging conveyor. The compact stainless body fits between rollers to deflect lightweight cartons.
Holds a workpiece during machining and retracts to free the part. The single air line simplifies valve wiring on the fixture.
This 10 mm bore provides 29.8 N net push at 0.5 MPa. If you need less force, the Ø6 bore offers 10.6 N; for heavier tasks, the Ø12 bore yields 42.9 N. The internal spring ensures the rod fails-safe to the retracted position on air loss, but it also means a minimum 0.2 MPa pressure is required to move the rod. Confirm your ordering essentials: 10 mm bore, 25 mm stroke, S magnet, and R axial inlet.
The thin Ø4 mm rod handles coaxial thrust well, but over the 25 mm stroke or under off-axis loads, add an external linear bearing to prevent side-load damage. The fixed TPU bumper decelerates the final few millimeters of travel. At higher cycling speeds with real tooling mass, meter-out the exhaust or install an external shock absorber to prevent bottoming out.
Quick checklist
The net usable push force is 29.8 N at 0.5 MPa and 45.5 N at 0.7 MPa. Because an internal spring opposes the air stroke, a minimum operating pressure of 0.2 MPa is required before the rod extends. The spring automatically retracts the rod if air is lost.
Yes. The S in the model number indicates a built-in piston magnet. This allows you to mount AirTAC reed or electronic solid-state switches directly to the barrel for end-of-stroke position detection.
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