Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-40S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-40S is a double-acting, double-rod pen-size mini cylinder whose rear rod carries a stroke adjuster. On a Ø16mm bore it gives a nominal 80mm stroke with a 40mm fine-adjustable window — settable from 40 to 80mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke80 mm
- Adjust window40 mm
- Effective range40–80 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 PBJ16X80-40S
The AirTAC PBJ16X80-40S is a double-acting, double-rod pen-size mini cylinder with a 40 mm adjustable-stroke window. A rear M5x0.8 adjuster screw shortens the retract end, giving an effective stroke range of 40-80 mm. You tune the length directly on the machine during commissioning, avoiding a re-order for a slightly different travel. The extend end remains fixed.
Output force matches a standard PB cylinder of the same bore, meaning the adjuster carries zero force penalty. The slim SUS304 stainless body saves space in tight jigs, and a fixed TPU bumper cushions each end. This -S model includes a built-in magnet for position sensing.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-40S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-40S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 80 mm |
| Adjustable window | 40 mm (40–80 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 |
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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 90.7 N | 90.7 N |
| 0.7 MPa (max) | 126.9 N | 126.9 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 PBJ16X80-40S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×80 | 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 PBJ16X80-40S Is Used
Variable-Depth Insertion
Dial in precise pressing depths for different part heights using the rear screw, shifting the retract window from 40 to 80 mm without swapping cylinders on the line.
Changeover Fixtures
Speed up product changeovers by adjusting the retract stop on the fly, letting a single jig handle multiple stroke lengths quickly and accurately.
Trial Stop Positioning
Set temporary mechanical stops during machine prototyping, fine-tuning the back position by up to 40 mm before locking the nut for final production runs.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-40S the Right Cylinder?
Stepping down to a 12 mm bore drops push to 56.5 N, while a larger 20 mm bore would exceed this unit.
Remember that only the retract position is adjustable; the extend end is fixed. Always re-tighten the lock nut after setting the rear screw, as vibration can drift an unlocked adjuster. Confirm your ordering essentials: 16 mm bore, 80 mm nominal stroke, 40 mm window, built-in magnet, and any LB or FA mount. The air port is M5x0.8.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 40–80 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 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 PBJ16X80-40S FAQ
The effective stroke range is 40-80 mm. At 0.5 MPa, push force is 100.5 N and pull is 90.7 N. At the maximum 0.7 MPa operating pressure, push is 140.7 N and pull is 126.9 N. Adjusting the stroke does not alter these forces.
A rear M5x0.8 screw shortens the retract end by up to 40 mm, while the extend end remains fixed. You must re-tighten the lock nut after setting to prevent vibration drift. The cylinder does not hold position on air loss; the piston drifts and the fixed TPU bumper only decelerates near stroke end, so use an external stop for fail-safe holding.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PBJ Pen-Size Cylinders
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