Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20S 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 80mm stroke with a 20mm fine-adjustable window — settable from 60 to 80mm, so you set the end position without changing hardware.
- BoreØ10 mm
- Nominal stroke80 mm
- Adjust window20 mm
- Effective range60–80 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 PBJ10X80-20S
The AirTAC PBJ10X80-20S is a double-acting, single-rod pen-size mini cylinder with a 20mm adjustable stroke window. A rear adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 60-80mm. The extend end remains fixed. Output force equals a standard PB cylinder of the same bore, delivering about 39.3N push at 0.5MPa. The M5x0.8 air port and M8x1.0 rod-end thread match the 10mm bore standard. A built-in magnet works with reed or electronic switches.
The SUS304 stainless barrel and slim body fit tight jigs and light end-of-arm tooling. A fixed TPU bumper decelerates the last few mm of travel. For practical sizing, plan for a safe working load of roughly 24N, which is about 60% of the 0.5MPa theoretical push force. The thin Ø4mm piston rod handles coaxial thrust; add an external guide for off-axis loads over this long stroke.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Nominal stroke | 80 mm |
| Adjustable window | 20 mm (60–80 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 PBJ10X80-20S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×80 | 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 PBJ10X80-20S Is Used
Changeover Fixtures
Dial in the exact retract stop during product changeovers without machining new hard stops or ordering different cylinders.
Trial Stops
Set a temporary end position for test jigs to find the optimal insertion depth before locking the nut permanently.
Variable-Depth Insertion
Adjust the back position on the fly for light-duty press tasks that require slightly different stroke lengths per batch.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20S the Right Cylinder?
To size correctly, consider the 12mm bore variant if you need more push, as it provides 56.5N at 0.5MPa. If 39.3N is sufficient, this 10mm bore is highly compact. Remember that only the retract end is adjustable; the extend end is fixed. After setting your 60-80mm effective stroke, re-tighten the lock nut to prevent vibration drift. Confirm your ordering essentials: 10mm bore, 80mm nominal stroke, 20mm window, S magnet, and any LB or FA mount.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 60–80 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 PBJ10X80-20S FAQ
At 0.5MPa it provides 39.3N push and 33N pull. At the 0.7MPa maximum it provides 55N push and 46.2N pull. The effective stroke range is 60-80mm because the 20mm adjuster only shortens the retract end.
The M4x0.7 rear screw shortens the retract stroke while the extend end stays fixed. You must re-tighten the lock nut after setting to prevent vibration drift. A plain cylinder does not hold position on air loss; the piston drifts and the fixed TPU bumper only decelerates near the stroke end. Use an external rod lock for fail-safe holding.
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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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