
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB6X45R is a single acting, push type (spring return) pen-size mini cylinder with a Ø6mm 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.
The AirTAC PSB6X45R is a JIS pen-size single-acting push cylinder with a 45 mm stroke. Air entering the single M5x0.8 axial port extends the Ø3 mm rod, while an internal spring retracts it upon exhaust. This fail-safe design ensures the rod returns home if air pressure drops, making it ideal for part ejection and clamping tasks. It yields 10.6 N of net push at 0.5 MPa.
Built with a SUS304 stainless barrel and rod, the slim mini body fits tight jigs and light end-of-arm tooling. A fixed TPU bumper cushions the stroke ends. Because the return spring opposes motion, plan for a safe working load of roughly 6 N (about 60 percent of the rated force) to account for seal friction and smooth travel.
| Model | Airtac PSB Single Acting Compact Cylinder PSB6X45R |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 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.
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 10.6 N |
| 0.7 MPa (max) | 16.3 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.
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 6 | 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).
Pushes lightweight stamped components off a conveyor lane. The spring-return design guarantees the ejector clears the belt path if the air supply fails.
Applies a steady 6 N holding force against a machined fixture. Releasing air pressure automatically retracts the rod to free the part for unloading.
Extends to tuck minor flaps on small boxes before sealing. The compact pen-size body mounts easily between adjacent packaging rails.
This 6 mm bore provides 10.6 N net push at 0.5 MPa and 16.3 N at 0.7 MPa. If your task needs less force, the 4 mm bore offers 4.1 N at 0.5 MPa; for heavier pushing, step up to the 10 mm bore at 29.8 N. The internal spring requires a minimum 0.2 MPa operating pressure before the rod begins moving. For vertical lifts, expect to raise about 0.5 kg safely with a 2:1 margin.
When ordering, confirm the 6 mm bore, 45 mm stroke, lack of a magnetic sensor, and the R axial back cover. The slender Ø3 mm rod handles coaxial thrust well, but over this 45 mm stroke or under off-axis loads, add an external linear bearing to prevent side-loading damage.
Quick checklist
It delivers 10.6 N net push at 0.5 MPa and 16.3 N at 0.7 MPa maximum. The return spring sets a 0.2 MPa minimum pressure before the rod moves, and the cylinder fails safe to the retracted position on air loss.
It uses a fixed TPU bumper at each end to decelerate the stroke. This bumper is not adjustable; at higher speeds with real tooling mass, meter-out the exhaust or add an external shock absorber to prevent bottoming out.
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