Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-20
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-20 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 20mm fine-adjustable window — settable from 130 to 150mm, so you set the end position without changing hardware.
- BoreØ12 mm
- Nominal stroke150 mm
- Adjust window20 mm
- Effective range130–150 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 PBJ12X150-20
The AirTAC PBJ12X150-20 is a double-acting, double-rod pen-size mini cylinder with a 20mm adjustable stroke window. A rear adjuster screw with lock nut lets you trim the retract end, yielding an effective stroke range of 130 to 150mm. You can dial in the exact length during machine commissioning without swapping hardware. The extend end remains fixed.
The slim body uses a SUS304 stainless rod and barrel, plus a fixed TPU bumper at each end. This bore uses an M5x0.8 air port and an M10x1.0 rod-end thread.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-20 Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-20 |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 20 mm (130–150 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 PBJ12X150-20
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×150 | Nominal stroke length in mm. |
| -20 | 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 PBJ12X150-20 Is Used
Changeover Fixtures
Dial in the retract position during product changeovers to set new stop lengths without machining new spacers.
Trial Stops
Fine-tune the end position on prototype jigs to find the exact insertion depth before locking the nut down.
Variable Depth Pressing
Adjust the back position on light-duty pressing stations to handle multiple part heights on the same line.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X150-20 the Right Cylinder?
When sizing this unit, consider the neighbouring bores. This 12mm model provides a solid middle ground. Remember that only the back position is tunable; the extend end is fixed. After setting your travel, re-tighten the lock nut because vibration can drift an unlocked screw. The Ø5mm rod is built for coaxial thrust over long strokes, so add an external guide for off-axis loads. Confirm your ordering essentials: 12mm bore, 150mm stroke, 20mm window, no magnet, and mounting choice.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 130–150 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 PBJ12X150-20 FAQ
The effective stroke range is 130 to 150mm. The maximum operating pressure is 0.7MPa.
The screw shortens the retract end only, while the extend end is fixed. You set the travel from 130mm up to the 150mm nominal length, then re-tighten the lock nut to prevent vibration drift. The adjuster thread is M5x0.8.
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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