Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-75S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-75S 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 75mm fine-adjustable window — settable from 5 to 80mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke80 mm
- Adjust window75 mm
- Effective range5–80 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-75S
The AirTAC PBJ16X80-75S is a double-acting, 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 5-80 mm. The extend end remains fixed. Output force equals a standard PB of this bore, delivering 100.5 N push at 0.5 MPa.
The body features a SUS304 stainless barrel and a slim profile for tight jigs. It includes a fixed TPU bumper at each end and a built-in magnet (-S) for position sensing. Good practice loads a cylinder to roughly 60% of its theoretical force; plan for about 60 N of real work at 0.5 MPa. The thin Ø5 mm piston rod handles coaxial thrust, so add an external guide for off-axis loads.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-75S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-75S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 80 mm |
| Adjustable window | 75 mm (5–80 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 PBJ16X80-75S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×80 | Nominal stroke length in mm. |
| -75 | 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 PBJ16X80-75S Is Used
Changeover Fixtures
Dial in the exact retract distance when swapping part families on a single fixture, using the 5-80 mm range to avoid machining new stops.
Trial Stops
Set precise end positions during prototyping to find the optimal insertion depth before committing to a hard mechanical stop.
Variable-Depth Insertion
Adjust the back position for different material thicknesses on the fly, keeping the extend stroke fixed for consistent contact.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-75S the Right Cylinder?
This 16 mm bore provides 100.5 N push at 0.5 MPa. Stepping down to a 12 mm bore drops the push to 56.5 N, while a larger 20 mm bore offers more force if needed. The M5x0.8 port and M10x1.0 rod-end thread are fixed by the bore. Remember that only the retract position is settable; the extend end is fixed.
After dialing in your 5-80 mm range, re-tighten the lock nut to prevent vibration drift. To order, confirm the 16 mm bore, 80 mm nominal stroke, 75 mm window, the -S magnet for reed or electronic switches, and your mounting choice.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 5–80 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 PBJ16X80-75S FAQ
The effective stroke range is 5-80 mm. Force is unchanged from a standard PB 16 mm bore: push is 100.5 N and pull is 90.7 N at 0.5 MPa. At the 0.7 MPa maximum, push is 140.7 N and pull is 126.9 N.
A rear M5x0.8 adjuster screw shortens the retract end by up to 75 mm, while the extend end is fixed. You must re-tighten the lock nut after setting to prevent vibration drift. A plain cylinder does not hold position on air loss; use an external stop for fail-safe holding.
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Related AirTAC PBJ Pen-Size Cylinders
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