Airtac PSB Single Acting Compact Cylinder PSB16X40SCB
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X40SCB 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 PSB16X40SCB
The AirTAC PSB16X40SCB 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 ensures fail-safe retraction upon exhaust. You gain simpler valving and tubing since only one solenoid line is required. It supplies 74.8 N of net push at 0.5 MPa and 115 N at 0.7 MPa, with the return spring force already subtracted from these usable figures.
This variant includes a built-in piston magnet for position sensing with reed or electronic switches, plus a CB double clevis back cover for pivoting mountings. The SUS304 stainless barrel and slim body fit tight jigs, while fixed TPU bumpers decelerate the stroke ends. Because the internal bumper only cushions the final few millimeters, metering out the exhaust is advised when moving real tooling mass at higher speeds.
Airtac PSB Single Acting Compact Cylinder PSB16X40SCB Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X40SCB |
|---|---|
| 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 PSB16X40SCB
| 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 PSB16X40SCB Is Used
Pivoting Package Diverter
Uses the CB double clevis to swing a gate on a packaging line, pushing cartons onto a side lane with 74.8 N of force before the spring safely retracts the arm.
Stamping Pin Ejector
Deploys a pin to push stamped metal blanks from a die on an assembly press, relying on the fail-safe retract to clear the area during air loss.
Film Roll Clamp
Extends to secure a winding film roll in place on a slitter machine, utilizing the single air line for simple control and the bumper to soften the extension stop.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X40SCB the Right Cylinder?
This 16 mm bore provides the highest thrust in the PSB family, yielding 74.8 N net push at 0.5 MPa. If your application requires less force, stepping down to the 12 mm bore offers 42.9 N at the same pressure. Remember the return spring establishes a 0.2 MPa minimum operating pressure before motion begins, and the rod stays safely retracted if air pressure is lost. Plan for a safe working load of roughly 45 N, which is about 60 percent of the 0.5 MPa rating, to account for seal friction.
When ordering, confirm the 40 mm stroke, the S magnet option, and the CB double clevis inlet. The M10x1.0 rod-end thread and M5x0.8 port are fixed for this bore. Note the slender Ø5 mm rod is built for coaxial thrust, so over this 40 mm stroke or under off-axis loads you should add an external linear bearing to prevent side loading.
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 PSB16X40SCB 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. The internal spring requires a minimum operating pressure of 0.2 MPa to extend the rod, and the cylinder fails safely retracted if air is lost.
The S suffix indicates a built-in piston magnet compatible with reed or electronic switches. The cylinder uses fixed TPU bumpers at each end that decelerate the last few millimeters of travel, but at high speeds with heavy tooling you should meter-out the exhaust or add an external shock absorber.
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Related AirTAC PSB Pen-Size Cylinders
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