Airtac PSB Single Acting Compact Cylinder PSB16X25U
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X25U 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 PSB16X25U
The AirTAC PSB16X25U is a JIS pen-size single-acting push cylinder that extends via one M5x0.8 air line and retracts via an internal spring. It provides 74.8 N of net push at 0.5 MPa and 115 N at 0.7 MPa. The U suffix denotes a 90-degree side inlet, keeping plumbing flat against your jig. A built-in return spring ensures the rod safely retracts on air loss.
Built with a SUS304 stainless barrel and a slim Ø5 mm rod, this mini body fits tight spaces. It relies on a fixed TPU bumper at each end to decelerate motion. Plan for a safe working load of roughly 45 N, which accounts for seal friction at standard pressure.
Airtac PSB Single Acting Compact Cylinder PSB16X25U Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X25U |
|---|---|
| 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 PSB16X25U
| 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 PSB16X25U Is Used
Stamping Ejector
Pushes finished metal blanks out of a press die, relying on the spring to retract clear before the next cycle.
Package Diverter
Extends a flat paddle to route small cartons on a packaging line, safely springing back if air pressure drops.
Clamp Release
Holds a workpiece forward during machining, automatically pulling back to a safe home position during an emergency stop.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X25U 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 a 10 mm bore offers 29.8 N. Because the internal spring sets a 0.2 MPa minimum pressure before motion begins, verify your supply can overcome it. The fail-safe retracted state is ideal for part ejection.
When ordering, confirm the 25 mm stroke, the U 90-degree side inlet, and your mounting bracket. This configuration lacks a sensor magnet; if you need position detection, select an S variant. The slender rod requires an external guide for off-axis loads.
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 PSB16X25U FAQ
It delivers 74.8 N of net push at 0.5 MPa and 115 N at 0.7 MPa. The internal return spring requires a minimum of 0.2 MPa before the rod can extend, and the rod fails safe to the retracted position on air loss.
It uses a fixed TPU bumper at each end to absorb impact over the last few millimeters of travel. Because it is not adjustable, you should meter-out the exhaust or add an external shock absorber when moving heavy tooling at high speeds.
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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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