Airtac PSB Single Acting Compact Cylinder PSB16X25SR
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X25SR is a single acting, push type (spring return) pen-size mini cylinder with a Ø16mm 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.
- BoreØ16 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB16X25SR
The AirTAC PSB16X25SR is a JIS pen-size single-acting push cylinder with a 16mm bore and 25mm stroke. Air entering the single M5x0.8 port extends the Ø5mm rod, while an internal spring retracts it upon exhaust release. This fail-safe design ensures the rod returns home if air pressure drops, making it ideal for clamp-release and part-eject duties. It supplies 74.8 N of net push at 0.5 MPa and 115 N at the 0.7 MPa maximum.
Built with a SUS304 stainless barrel and slim body, it fits tight spaces and damp environments. The -S suffix adds a piston magnet for position sensing with reed or electronic switches. A fixed TPU bumper cushions the stroke ends. For a practical setup, plan for a safe working load of about 45 N, which accounts for seal friction and smooth travel.
Airtac PSB Single Acting Compact Cylinder PSB16X25SR Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X25SR |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 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.
Net Push Force (Ø16mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 74.8 N |
| 0.7 MPa (max) | 115.0 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.
Model Code: Airtac PSB Single Acting Compact Cylinder PSB16X25SR
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 16 | 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).
Where the Airtac PSB Single Acting Compact Cylinder PSB16X25SR Is Used
Part Ejection Arm
Uses the fail-safe spring return to retract the ejector pin when air drops, preventing jams on the CNC milling output conveyor.
Sorting Gate Diverter
Pushes lightweight packages to a secondary lane; the single solenoid line cuts tubing complexity on the logistics sorter.
Clamp Release Mechanism
Holds a workpiece during machining and safely releases it by spring pressure if the main air supply fails.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X25SR the Right Cylinder?
This 16mm bore provides the highest push force in the PSB family, offering 74.8 N at 0.5 MPa. If your application requires less force, the 12mm bore yields 42.9 N at the same pressure. Remember the internal spring sets a 0.2 MPa minimum operating pressure before motion begins. The thin Ø5mm rod handles coaxial thrust well, but over long strokes or off-axis loads you should add an external linear bearing to prevent side-load damage.
When ordering, confirm the 16mm bore, 25mm stroke, -S magnet for switches, and R axial back cover for in-line plumbing. The fixed TPU bumper only decelerates the last few millimeters; at higher speeds with real tooling mass, meter-out the exhaust or add an external shock absorber.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 mm (single-acting limit)
- ✓ Keep the load coaxial — avoid side load
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 Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
Airtac PSB Single Acting Compact Cylinder PSB16X25SR FAQ
The net usable push force is 74.8 N at 0.5 MPa and 115 N at the 0.7 MPa maximum. Because an internal spring opposes the air stroke, a minimum operating pressure of 0.2 MPa is required before the rod moves. The spring also ensures the rod fails-safe retracted on air loss.
The -S suffix indicates a built-in piston magnet compatible with reed or electronic switches. For cushioning, it uses a fixed TPU bumper at each end. This bumper only decelerates the last few millimeters of travel, so with heavy tooling mass at mid speed you should meter-out the exhaust or use an external shock absorber.
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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 PSB Pen-Size Cylinders
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