Airtac PSB Single Acting Compact Cylinder PSB12X5SR
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB12X5SR is a single acting, push type (spring return) pen-size mini cylinder with a Ø12mm bore and 5mm 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.
- BoreØ12 mm
- Stroke5 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB12X5SR
The AirTAC PSB12X5SR is a JIS pen-size single-acting push cylinder with a 12mm bore and 5mm stroke. Air entering the M5x0.8 port extends the M10x1.0 threaded rod, while an internal spring retracts it upon exhaust release. This design requires only one solenoid line, simplifying tubing and cutting valving costs. It delivers 42.9 N of net push at 0.5 MPa and 65.5 N at 0.7 MPa.
Built with a SUS304 stainless barrel and a slim 12mm body, it fits tight, damp jigs while resisting corrosion. The built-in magnet (-S) enables position sensing with reed or electronic switches. A fixed TPU bumper cushions the stroke ends. Plan for a safe working load of about 26 N, which accounts for seal friction and smooth travel.
Airtac PSB Single Acting Compact Cylinder PSB12X5SR Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB12X5SR |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 5 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 (Ø12mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 42.9 N |
| 0.7 MPa (max) | 65.5 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 PSB12X5SR
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×5 | 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 PSB12X5SR Is Used
Short-Stroke Part Ejection
Pushes small machined components out of a lathe collet using the 5mm stroke, with the spring ensuring the ejector retracts clear of the spindle on air loss.
Carton Flap Tucking
Deploys a brief 42.9 N push at 0.5 MPa to tuck minor flaps on a packaging line, retreating instantly to let the major flaps fold without interference.
Sorting Gate Diverter
Acts as a fail-safe diverter gate on a conveyor; the spring pulls the gate open if compressed air drops, preventing product jams during stoppages.
Is the Airtac PSB Single Acting Compact Cylinder PSB12X5SR the Right Cylinder?
This 12mm bore provides 42.9 N net push at 0.5 MPa. If you need less force, the 10mm bore offers 29.8 N; for heavier tasks, the 16mm bore yields 74.8 N. The internal spring ensures the rod fails-safe to a retracted position on air loss, but it also sets a 0.2 MPa minimum pressure before motion begins. With a 2:1 safety margin, this model lifts about 2.2 kg vertically.
The thin Ø5 mm rod handles coaxial thrust well, but avoid side loads. Confirm your ordering essentials: 12mm bore, 5mm stroke, S magnet, R axial 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 PSB12X5SR FAQ
The net push force is 42.9 N at 0.5 MPa and 65.5 N at 0.7 MPa (maximum pressure). Because the internal return spring opposes the air stroke, a minimum operating pressure of 0.2 MPa is required before the rod moves.
It uses a fixed TPU bumper at each end to decelerate the last few millimeters of travel; it is not adjustable, so meter-out the exhaust or add an external shock absorber for heavy tooling. The built-in -S magnet works with AirTAC reed or electronic switches for precise position sensing.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC PSB Pen-Size Cylinders
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