Airtac PSB Single Acting Compact Cylinder PSB16X40SR
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X40SR is a single acting, push type (spring return) pen-size mini cylinder with a Ø16mm bore and 40mm 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
- Stroke40 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB16X40SR
The AirTAC PSB16X40SR is a JIS pen-size single-acting push cylinder with a 16 mm bore and 40 mm stroke. Air entering the single M5x0.8 port extends the Ø5 mm rod, while an internal spring retracts it upon exhaust release. This design requires only one solenoid line, simplifying tubing and lowering valving costs. The slim SUS304 stainless body fits tight jigs, and the fail-safe spring ensures the rod returns home if air pressure drops.
It provides 74.8 N of net push at 0.5 MPa and 115 N at the 0.7 MPa maximum, with the return spring force already deducted. The built-in magnet (-S) supports reed or electronic switches for position sensing, and the R axial inlet keeps plumbing in-line. A fixed TPU bumper at each end cushions the last few millimeters of travel.
Airtac PSB Single Acting Compact Cylinder PSB16X40SR Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X40SR |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 40 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 PSB16X40SR
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×40 | 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 PSB16X40SR Is Used
Part Ejector
Pushes machined components off a conveyor belt; the spring-return fail-safe guarantees the ejector retracts clear of the belt on air loss.
Clamp Release
Applies 74.8 N of holding push at 0.5 MPa for light jig clamping, automatically releasing the part when air is removed.
Carton Gate
Acts as a diverter gate on a packaging line, extending to block boxes and springing back to let them pass without continuous air.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X40SR the Right Cylinder?
This 16 mm bore yields 74.8 N net push at 0.5 MPa. Stepping down to a 12 mm bore drops the output to 42.9 N, while this model offers a safe working load of roughly 45 N (about 60 percent of the 0.5 MPa rating) to account for seal friction. The internal return spring sets a 0.2 MPa minimum pressure before motion begins. Plan to lift about 3.8 kg vertically using a sane 2:1 safety margin.
Because the Ø5 mm rod is slender over a 40 mm stroke, add an external linear bearing for off-axis loads to prevent side-loading damage. At high cycling speeds with heavy tooling, the fixed TPU bumper can bottom out, so meter-out the exhaust or add an external shock absorber. Confirm your ordering essentials: 16 mm bore, 40 mm stroke, S magnet, R axial back cover, and mounting brackets.
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 PSB16X40SR FAQ
The net push force is 74.8 N at 0.5 MPa and 115 N at the 0.7 MPa maximum. The internal spring requires a minimum of 0.2 MPa before the rod begins to move, and it fail-safe retracts the rod on air loss.
It uses a fixed TPU bumper at each end to decelerate the last few millimeters of travel; it is not an adjustable shock. The built-in S magnet works with AirTAC reed or electronic switches for precise end-of-stroke position sensing.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PSB Pen-Size Cylinders
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