Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75S is a double-acting pen-size mini cylinder with a rear adjuster screw that shortens the retract end of the stroke. 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.
- BoreØ12 mm
- Nominal stroke150 mm
- Adjust window75 mm
- Effective range75–150 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75S
The AirTAC PBJ12X150-75S is a double-acting, single-rod pen-size mini cylinder with a 75mm adjustable stroke window. A rear M5x0.8 adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 75mm to 150mm. The extend end remains fixed. Output force matches a standard PB of the same bore, delivering 56.5N push and 46.7N pull at 0.5MPa. The -S suffix denotes a built-in piston magnet for reed or electronic switches.
The slim SUS304 stainless body and Ø5mm rod suit tight jigs and end-of-arm tooling. Air connects via an M5x0.8 port. A fixed TPU bumper cushions each end. Because the rod is only 5mm thick over a long stroke, add an external linear bearing for any off-axis loads. The bumper only decelerates the final few millimeters, so meter-out the exhaust or use an external shock absorber when driving heavy tooling at high speed.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75S |
|---|---|
| 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 |
The adjuster shortens only the retract end; the extend end is fixed. Force is unchanged from the standard PB double-acting cylinder. Confirm the set position against the product label before installation.
Theoretical Output Force (Ø12mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 56.5 N | 46.7 N |
| 0.7 MPa (max) | 79.1 N | 65.4 N |
Adjusting the stroke does not change output force — these are the same values as the standard PB double-acting cylinder of the same bore. Size with a friction margin.
Model Code: Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75S
| 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).
Where the Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75S Is Used
Changeover Fixtures
Dial in the retract stop during product changeovers without machining new hard stops or ordering replacement cylinders.
Variable-Depth Insertion
Tune the 75-150mm stroke on the machine to press parts to exact depths during prototyping or batch variations.
Vertical Lift Jigs
Lifts about 2.9kg vertically with a 2:1 safety margin at 0.5MPa; plan for roughly 34N of real work after seal friction.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75S the Right Cylinder?
This 12mm bore provides 56.5N push at 0.5MPa. If your task needs less force, the 10mm bore yields 39.3N; if you need more, step up to the 16mm bore for 100.5N. To set your travel, turn the rear M5x0.8 adjuster screw to dial in the 75-150mm range, then re-tighten the lock nut so machine vibration does not drift the setting. Remember that only the retract position moves while the extend end stays fixed. Confirm your ordering essentials: 12mm bore, 150mm nominal stroke, 75mm window, S magnet, and any LB or FA mount.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 75–150 mm
- ✓ Force at your working pressure
- ✓ Magnet (S) for sensors?
- ✓ Access to the rear adjuster screw
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.7 MPa operating pressure.
- check Set the adjuster, then re-lock the check nut.
- check The adjuster shortens the retract end only.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-75S FAQ
The effective stroke range is 75mm to 150mm. Force equals a standard PB 12mm cylinder: 56.5N push and 46.7N pull at 0.5MPa, or 79.1N push and 65.4N pull at the 0.7MPa maximum. Adjusting the travel does not alter these force figures.
The rear M5x0.8 screw shortens the retract end only; the extend end is fixed. You must re-tighten the lock nut after setting to prevent vibration drift. A plain cylinder does not hold position on air loss, as the piston drifts and the fixed TPU bumper only decelerates near the end. Use an external rod lock for fail-safe holding.
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Related AirTAC PBJ Pen-Size Cylinders
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