Airtac PSB Single Acting Compact Cylinder PSB16X40SU
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X40SU 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 PSB16X40SU
The AirTAC PSB16X40SU 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. This fail-safe design ensures the rod returns home if air pressure drops, requiring only one solenoid line for simpler tubing. It supplies 74.8 N of net push at 0.5 MPa and 115 N at 0.7 MPa.
Built with a SUS304 stainless barrel and rod, the slim mini body fits tight jigs and light end-of-arm tooling. The U 90-degree side inlet allows flat plumbing, and the built-in S magnet supports position sensing. A fixed TPU bumper cushions the stroke ends. For practical sizing, plan for a safe working load of about 45 N, which is roughly 60 percent of the 0.5 MPa rating.
Airtac PSB Single Acting Compact Cylinder PSB16X40SU Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X40SU |
|---|---|
| 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 PSB16X40SU
| 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 PSB16X40SU Is Used
Part Ejection
Pushes machined components off a conveyor lane with 74.8 N net force at 0.5 MPa, safely retracting if the air supply stops.
Flap Folding
Extends to fold carton flaps on a packaging line, using the U side inlet for flat manifold mounting in tight spaces.
Clamp Release
Acts as a fail-safe clamp that holds parts during machining and springs back to release them on air loss.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X40SU the Right Cylinder?
This 16 mm bore provides the maximum standard thrust in the PSB family, yielding 74.8 N net push at 0.5 MPa. If your application needs less force, stepping down to the 12 mm bore drops the output to 42.9 N at 0.5 MPa. Because the internal spring opposes the air stroke, a minimum operating pressure of 0.2 MPa is required before the rod moves. Remember that the spring holds the rod retracted without live air, but it is not a lock for external loads.
When ordering, confirm the 16 mm bore, 40 mm stroke, S magnet for electronic or reed switches, and the U 90-degree side inlet. The thin Ø5 mm rod handles coaxial thrust well, but over this 40 mm stroke or under off-axis loads, add an external linear bearing to prevent side load damage.
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 PSB16X40SU FAQ
It delivers 74.8 N net push at 0.5 MPa and 115 N at 0.7 MPa maximum. Because the internal return spring opposes motion, a minimum of 0.2 MPa is needed to extend the rod.
The S suffix indicates a built-in piston magnet for electronic or reed switches. Cushioning relies on a fixed TPU bumper at each end; at high speeds with heavy tooling, meter-out the exhaust or add an external shock absorber.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PSB Pen-Size Cylinders
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