Airtac PSB Single Acting Compact Cylinder PSB16X50SU
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X50SU is a single acting, push type (spring return) pen-size mini cylinder with a Ø16mm bore and 50mm 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
- Stroke50 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB16X50SU
The AirTAC PSB16X50SU is a JIS pen-size single-acting push cylinder with a 16mm bore and 50mm stroke. Air entering the single M5x0.8 port extends the Ø5mm rod, while an internal spring retracts it upon exhaust. This fail-safe design ensures the rod returns home if air pressure drops. It delivers 74.8 N of net push at 0.5 MPa, reaching 115 N at the 0.7 MPa maximum.
Built with a SUS304 stainless barrel and slim body, it fits tight jigs and light end-of-arm tooling. This -S variant includes a piston magnet for position sensing with reed or electronic switches. The U suffix denotes a 90-degree side inlet for flat plumbing. A fixed TPU bumper cushions the stroke ends, though external shock absorbers are advised for heavy tooling mass at higher speeds.
Airtac PSB Single Acting Compact Cylinder PSB16X50SU Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X50SU |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 50 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 PSB16X50SU
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×50 | 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 PSB16X50SU Is Used
Part Ejection
Pushes finished plastic parts off a conveyor belt; the spring-return design guarantees the ejector clears the line during an air loss event.
Clamp Release
Acts as a fail-safe clamp release on a CNC fixture, automatically pulling back to free the workpiece when air is removed.
Flap Folder
Deploys a guide arm to fold carton flaps on a packaging line, using the 90-degree side inlet to keep tubing flush against the machine frame.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X50SU the Right Cylinder?
Selecting this 16mm bore provides 74.8 N net push at 0.5 MPa. Stepping down to a 12mm bore drops the output to 42.9 N, while moving up is unnecessary within this pen-size family. Plan for a safe working load of about 45 N, which is roughly 60 percent of the 0.5 MPa figure, to account for seal friction. The internal spring also sets a 0.2 MPa minimum pressure before motion begins.
With a 50mm stroke, the slender Ø5mm rod requires an external guide or linear bearing to prevent side-loading damage. Confirm your ordering essentials: 16mm bore, 50mm stroke, -S magnet, U side inlet, and your preferred mounting bracket.
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 PSB16X50SU FAQ
The net push force is 74.8 N at 0.5 MPa and 115 N at the 0.7 MPa maximum. Because the internal return spring opposes the air stroke, a minimum of 0.2 MPa is required before the rod begins to move.
The -S suffix indicates a built-in piston magnet compatible with reed or electronic switches. Cushioning relies on a fixed TPU bumper at each end; it only decelerates the last few millimeters, so you should meter-out the exhaust or add an external shock absorber when cycling heavy masses at mid to high speeds.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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