Airtac PSB Single Acting Compact Cylinder PSB16X45SR
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X45SR is a single acting, push type (spring return) pen-size mini cylinder with a Ø16mm bore and 45mm 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
- Stroke45 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB16X45SR
The AirTAC PSB16X45SR is a JIS pen-size single-acting push cylinder featuring a 16 mm bore and 45 mm stroke. Air entering the single M5x0.8 port extends the Ø5 mm rod to provide 74.8 N of net push at 0.5 MPa, while an internal spring ensures fail-safe retraction upon air loss. The built-in piston magnet allows position sensing with reed or electronic switches, and the R axial inlet keeps plumbing inline for compact jigs.
Constructed with a SUS304 stainless barrel and slim mini body, this unit saves space and weight on light end-of-arm tooling. A fixed TPU bumper at each end decelerates the stroke over the final few millimeters. Because the return spring consumes energy, plan for a safe working load of roughly 45 N, which is about 60 percent of the 0.5 MPa rating.
Airtac PSB Single Acting Compact Cylinder PSB16X45SR Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X45SR |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 45 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 PSB16X45SR
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×45 | 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 PSB16X45SR Is Used
Part Ejection
Pushes finished metal stampings out of a press die using 74.8 N of thrust, with the spring safely pulling the rod back to clear the mold on air loss.
Gate Diverter
Acts as a spring-return sorting gate on a packaging line, extending to deflect cartons and relying on the internal spring to retract instantly when the solenoid de-energizes.
Clamp Release
Holds a workpiece against a machining stop by extending the rod, then exhausts the single air line so the spring retracts the clamp for quick part removal.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X45SR the Right Cylinder?
This 16 mm bore provides the maximum thrust in the series with 74.8 N at 0.5 MPa and 115 N at 0.7 MPa. If your application requires less force, stepping down to the 12 mm bore yields 42.9 N at 0.5 MPa. The internal spring mandates a minimum operating pressure of 0.2 MPa before motion begins, and it holds the rod safely retracted when air is removed. The thin Ø5 mm rod is designed for coaxial thrust, so over this 45 mm stroke or under off-axis loads, add an external linear bearing to prevent side load damage.
When ordering, confirm the 16 mm bore, 45 mm stroke, S magnet option, and R axial back cover. The fixed TPU bumper is not adjustable, so at high speeds with heavy tooling mass, meter-out the exhaust or install an external shock absorber to prevent bottoming out.
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 PSB16X45SR FAQ
The net push force is 74.8 N at 0.5 MPa and 115 N at 0.7 MPa, with the return spring force already deducted. A minimum operating pressure of 0.2 MPa is required to overcome the spring and move the rod.
The S suffix indicates a built-in piston magnet compatible with reed or electronic switches. The cylinder uses a fixed TPU bumper at each end that decelerates the last few millimeters of travel, but it is not adjustable or a locking brake for external loads.
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