Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-40S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-40S 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 40mm fine-adjustable window — settable from 110 to 150mm, so you set the end position without changing hardware.
- BoreØ12 mm
- Nominal stroke150 mm
- Adjust window40 mm
- Effective range110–150 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-40S
The AirTAC PBJ12X150-40S is a double-acting, double-rod pen-size mini cylinder with a 40mm adjustable window. A rear adjuster screw shortens the retract end, yielding an effective stroke range of 110-150mm. The extend end remains fixed. The M5x0.8 air port and Ø5mm rod keep the unit compact.
An integrated piston magnet enables position sensing with reed or electronic switches. The SUS304 stainless build and fixed TPU bumper suit tight jigs. Because the rod is only Ø5mm, add an external guide for off-axis loads over this 150mm length. The bumper decelerates the last few millimeters; meter-out the exhaust if moving real tooling mass at higher speeds.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-40S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-40S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 40 mm (110–150 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.
Theoretical Output Force (Ø12mm)
| 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.
Model Code: Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-40S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×150 | Nominal stroke length in mm. |
| -40 | 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 PBJ12X150-40S Is Used
Changeover Fixtures
Dial in the 110-150mm retract distance during product changeovers without machining new stop blocks or ordering alternate cylinders.
Variable-Depth Insertion
Tune the rear screw to set precise press depths for different parts on the same line, locking the nut once the target depth is found.
Trial Stop Positioning
Use the 40mm window to find the exact end-of-stroke position during prototyping, then secure the adjuster for consistent production runs.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-40S the Right Cylinder?
Stepping down to a 10mm bore drops push to 39.3N, while a 16mm bore raises it to 100.5N.
Remember that only the retract position is field-settable; the extend end is fixed. Re-tighten the lock nut on the M5x0.8 adjuster after setting to prevent vibration drift. Confirm your ordering essentials: 12mm bore, 150mm nominal stroke, 40mm window, S magnet, and mounting option.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 110–150 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 Double rod: the rear rod carries the stroke adjuster.
- 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 PBJ12X150-40S FAQ
The effective stroke range is 110-150mm.
A rear adjuster screw shortens the retract end, meaning only the back position is adjustable while the extend end is fixed. You must re-tighten the lock nut after setting to prevent vibration drift. The built-in magnet works with reed or electronic switches.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PBJ Pen-Size Cylinders
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