Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50 is a double-acting pen-size mini cylinder with a rear adjuster screw that shortens the retract end of the stroke. On a Ø16mm bore it gives a nominal 80mm stroke with a 50mm fine-adjustable window — settable from 30 to 80mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke80 mm
- Adjust window50 mm
- Effective range30–80 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50
The AirTAC PBJ16X80-50 is a double-acting, single-rod pen-size mini cylinder with an adjustable stroke. A rear adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 30 to 80 mm. The extend end remains fixed. Output force equals a standard PB body of the same 16 mm bore, delivering 100.5 N push and 90.7 N pull at 0.5 MPa, so the adjuster is free of any force penalty.
The slim SUS304 stainless body uses an M5x0.8 air port and an M10x1.0 rod-end thread. A fixed TPU bumper decelerates the last few mm of travel. Plan for a safe working load of about 60 N (roughly 60% of the 0.5 MPa push force) or a vertical lift capacity of about 5.1 kg with a 2:1 margin. The thin Ø5 mm piston rod is built for coaxial thrust, so add an external guide for off-axis loads.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50 Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50 |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 80 mm |
| Adjustable window | 50 mm (30–80 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 100.5 N | 90.7 N |
| 0.7 MPa (max) | 140.7 N | 126.9 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 PBJ16X80-50
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×80 | Nominal stroke length in mm. |
| -50 | 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 PBJ16X80-50 Is Used
Changeover Fixtures
Dial in the exact retract distance on the machine during product changeovers, saving time by avoiding hardware swaps.
Trial Stop Positioning
Set precise end-of-stroke stops for prototype testing, allowing quick adjustments to find the optimal process length.
Variable-Depth Insertion
Regulate the penetration depth of pins or plugs on assembly lines, easily tuning the 30 to 80 mm window on site.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50 the Right Cylinder?
This 16 mm bore provides 100.5 N push at 0.5 MPa. If your setup needs less force, the 12 mm bore offers 56.5 N push; if you need more, there is no larger PBJ bore. Remember that only the retract position is field-settable—the extend end is fixed. Re-tighten the lock nut after setting the screw, as vibration can drift an unlocked adjuster.
Confirm your ordering essentials: 16 mm bore, 80 mm nominal stroke, 50 mm adjustable window, no magnet, and your preferred mounting. The fixed TPU bumper only decelerates near stroke end; at high speeds with heavy tooling, meter-out the exhaust or add an external shock absorber. A plain PBJ does not hold position on air loss, so use an external stop for fail-safe load holding.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 30–80 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 PBJ16X80-50 FAQ
The effective stroke range is 30 to 80 mm. At 0.5 MPa, the push force is 100.5 N and the pull force is 90.7 N. At the maximum 0.7 MPa operating pressure, the push force is 140.7 N and the pull force is 126.9 N.
The rear M5x0.8 adjuster screw shortens the retract end of the stroke, while the extend end remains fixed. You must re-tighten the lock nut after setting your desired length to prevent vibration drift. This cylinder has no sensor magnet.
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Related AirTAC PBJ Pen-Size Cylinders
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