Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X125-100S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X125-100S is a double-acting pen-size mini cylinder with a rear adjuster screw that shortens the retract end of the stroke. On a Ø10mm bore it gives a nominal 125mm stroke with a 100mm fine-adjustable window — settable from 25 to 125mm, so you set the end position without changing hardware.
- BoreØ10 mm
- Nominal stroke125 mm
- Adjust window100 mm
- Effective range25–125 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X125-100S
The AirTAC PBJ10X125-100S is a double-acting, single-rod pen-size mini cylinder with a 100mm adjustable window. A rear M4x0.7 adjuster screw shortens the retract end, yielding an effective stroke of 25-125mm. The extend end is fixed. It generates 39.3N push and 33N pull at 0.5MPa, exactly matching standard PB force figures. Stroke length of 125mm exceeds the 100mm max standard for this 10mm bore, making it a non-standard, made-to-order part.
The slim SUS304 stainless body saves space on tight jigs. A built-in magnet (-S) works with reed or electronic switches. The M5x0.8 port and Ø4mm rod are fixed by bore size. A fixed TPU bumper decelerates the last few mm of travel. Because the thin rod is only for coaxial thrust, add an external guide over this long stroke to prevent side-load damage.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X125-100S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X125-100S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Nominal stroke | 125 mm |
| Adjustable window | 100 mm (25–125 mm) |
| Adjuster thread | M4×0.7 |
| 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 100 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 (Ø10mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 39.3 N | 33.0 N |
| 0.7 MPa (max) | 55.0 N | 46.2 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 PBJ10X125-100S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×125 | Nominal stroke length in mm. |
| -100 | 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 PBJ10X125-100S Is Used
Changeover Fixtures
Dial in the exact retract stop during product changeovers without machining new hard stops.
Trial Stops
Set precise end positions for test fixtures and gently lock the nut once the optimal length is found.
Variable-Depth Insert
Tune insertion depth on the fly for delicate pressing tasks within the 25-125mm range.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X125-100S the Right Cylinder?
For sizing, the adjacent 12mm bore gives 56.5N push at 0.5MPa if you need more force, while dropping down is not standard below 10mm. Remember that only the retract position is field-settable; the extend end remains fixed. After dialing in the 25-125mm range, re-tighten the lock nut so vibration does not drift the screw. Confirm ordering essentials: 10mm bore, 125mm stroke, -100mm window, S magnet, and mounting.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 25–125 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 PBJ10X125-100S FAQ
At 0.5MPa it gives 39.3N push and 33N pull. At the 0.7MPa maximum it gives 55N push and 46.2N pull. The effective stroke range is 25-125mm, set via a 100mm rear adjuster window.
A rear M4x0.7 screw shortens the retract end only; the extend end is fixed. Re-tighten the lock nut after setting to prevent vibration drift. The built-in -S magnet is compatible with reed or electronic switches.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PBJ Pen-Size Cylinders
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