
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75 is a double-acting, double-rod pen-size mini cylinder whose rear rod carries a stroke adjuster. On a Ø12mm bore it gives a nominal 150mm stroke with a 75mm fine-adjustable window — settable from 75 to 150mm, so you set the end position without changing hardware.
The AirTAC PBJ12X150-75 is a double-acting, double-rod pen-size mini cylinder with an adjustable stroke. A rear adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 75-150 mm. The extend end remains fixed.
This 12 mm bore unit features a Ø5 mm rod, an M5x0.8 air port, and an M10x1.0 rod-end thread. The SUS304 stainless barrel and slim body suit tight jigs. A fixed TPU bumper decelerates the last few mm of travel. For higher speeds with real tooling mass, meter-out the exhaust or add an external shock absorber.
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75 |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 75 mm (75–150 mm) |
| Adjuster thread | M5×0.8 |
| Port size | M5×0.8 |
|---|---|
| Operating pressure | 0.15 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Elastic bumper (both ends) |
| Max standard stroke | Up to 200 mm |
PBJ is a double-rod cylinder: the rear rod carries the stroke adjuster, which sets the stroke end within the adjustable window. Confirm the set position against the product label before installation.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 46.7 N | 46.7 N |
| 0.7 MPa (max) | 65.4 N | 65.4 N |
The rear rod passes through the rear cover, so both piston faces lose rod area: push is shown at the annular-area value (conservative), lower than a single-rod PB push of the same bore. Size with a friction margin.
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×150 | Nominal stroke length in mm. |
| -75 | Adjustable-stroke window in mm (10/20/30/40/50/75/100). |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
Fixed body — no separate back-cover code. Mounting accessories: LB, FA. Related PB-family variants: PB (fixed stroke), PBD (double rod), PBR (front-mount).
Dial in the exact retract length during product changeovers without swapping cylinders or reordering hardware.
Set precise intermediate end positions for testing and probing sequences before finalizing a fixed stop.
Adjust the back position on press and insertion jigs to accommodate different part heights quickly.
This model covers a 75-150 mm adjustable window.
Only the retract end is adjustable, so verify your extend length is fixed. Re-tighten the lock nut after setting the screw to prevent vibration drift. Confirm ordering essentials: 12 mm bore, 150 mm nominal stroke, 75 mm window, no magnet, and mounting. The thin Ø5 mm rod is for coaxial thrust; over long strokes add an external guide to prevent side load.
Quick checklist
The effective stroke range is 75-150 mm. The 0.7 MPa rating is the maximum operating pressure.
The screw shortens the retract end only, while the extend end is fixed. You set the desired length and then re-tighten the lock nut to prevent vibration drift. This adjustment changes the stroke length without altering the force output.
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