Airtac PSB Single Acting Compact Cylinder PSB12X45CB
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB12X45CB is a single acting, push type (spring return) pen-size mini cylinder with a Ø12mm bore and 45mm 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
- Stroke45 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB12X45CB
The AirTAC PSB12X45CB is a JIS pen-size single-acting push cylinder with a 12mm bore and 45mm stroke. Air entering the M5x0.8 port extends the Ø5mm rod, while an internal spring ensures fail-safe retraction upon air loss. This configuration simplifies valving by requiring just one solenoid line. It supplies 42.9 N of net push at 0.5 MPa and 65.5 N at 0.7 MPa.
Equipped with a CB double clevis back cover, this unit accommodates pivoting loads. The SUS304 stainless barrel and slim body fit tight jigs. A fixed TPU bumper cushions the stroke ends. For practical sizing, plan for roughly 26 N of real work (about 60 percent of the 0.5 MPa rating) to account for friction, which lets you lift about 2.2 kg vertically with a sane 2:1 margin.
Airtac PSB Single Acting Compact Cylinder PSB12X45CB Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB12X45CB |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 45 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 PSB12X45CB
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×45 | 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 PSB12X45CB Is Used
Pivoting Part Ejector
Uses the CB double clevis to swing and push finished metal parts off a CNC milling table safely.
Package Diverter Gate
Extends to deflect cardboard boxes on a packaging line, relying on the spring to retract during jams.
Clamp Release Mechanism
Applies 42.9 N of push at 0.5 MPa to hold a workpiece, snapping back automatically when air drops.
Is the Airtac PSB Single Acting Compact Cylinder PSB12X45CB the Right Cylinder?
This 12mm bore generates 42.9 N net push at 0.5 MPa. Stepping down to the 10mm bore yields 29.8 N, whereas the 16mm bore provides 74.8 N. The internal return spring dictates a minimum 0.2 MPa operating pressure before motion begins. Verify your ordering code details: 12mm bore, 45mm stroke, CB double clevis, and no magnet suffix.
Because the rod is only Ø5 mm, it handles coaxial thrust well but requires an external guide for off-axis loads over this 45mm stroke. The fixed TPU bumper decelerates the final few millimeters; at mid speeds with heavy tooling, meter-out the exhaust or add an external shock absorber to prevent bottoming out.
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 PSB12X45CB FAQ
It delivers 42.9 N net push at 0.5 MPa and 65.5 N at 0.7 MPa (maximum pressure). The return spring requires a minimum of 0.2 MPa before the rod extends, and the rod fails safe to the retracted position on air loss.
It uses a fixed TPU bumper at each end to decelerate the last few millimeters of travel. The CB back cover provides a double clevis for pivoting applications. Since it lacks the S suffix, it has no internal magnet for 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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PSB Pen-Size Cylinders
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