Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-30S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-30S 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 45mm stroke with a 30mm fine-adjustable window — settable from 15 to 45mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke45 mm
- Adjust window30 mm
- Effective range15–45 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-30S
The AirTAC PBJ16X45-30S is a double-acting, single-rod pen-size mini cylinder with a 30mm adjustable window. A rear adjuster screw and lock nut shortens the retract end, giving an effective stroke range of 15-45mm. The extend end remains fixed. Force is unchanged from a standard PB cylinder of this bore, delivering 100.5N push and 90.7N pull at 0.5MPa. The air port is M5x0.8 and the rod-end thread is M10x1.0.
The slim SUS304 stainless body saves space in tight jigs. A fixed TPU bumper decelerates the last few mm of travel, but at higher speeds with real mass you should meter-out the exhaust or add an external shock absorber. The built-in piston magnet works with AirTAC reed or electronic switches. Good practice loads a cylinder to about 60% of theoretical force, so plan for roughly 60N of real work at 0.5MPa, which can vertically lift about 5.1kg with a 2:1 margin.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-30S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-30S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 45 mm |
| Adjustable window | 30 mm (15–45 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 PBJ16X45-30S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×45 | Nominal stroke length in mm. |
| -30 | 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 PBJ16X45-30S Is Used
Changeover Fixtures
Dial in the retract from 15 to 45mm on the machine during product changeovers, avoiding hardware swaps.
Trial Insertion Stops
Set precise insertion depths during testing, locking the rear nut once the perfect position is found.
Variable Depth Pressing
Adjust the back position for different pressing depths while keeping the full extend force of 140.7N at 0.7MPa.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-30S the Right Cylinder?
When sizing, note that a 12mm bore gives 56.5N push while a 16mm bore gives 100.5N push at 0.5MPa. This model provides the higher force in a compact footprint. Remember that only the retract position is adjustable; the extend end is fixed. Always re-tighten the lock nut after setting the rear M5x0.8 adjuster screw, as vibration can drift an unlocked setting. The Ø5mm rod is built for coaxial thrust, so add an external guide for off-axis loads.
Confirm your ordering essentials: 16mm bore, 45mm nominal stroke, 30mm adjustable window, S for the built-in magnet, and your mounting option. 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 15–45 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 PBJ16X45-30S FAQ
At 0.5MPa the push force is 100.5N and the pull force is 90.7N. At the maximum 0.7MPa, push is 140.7N and pull is 126.9N. The effective stroke range is 15-45mm, set by shortening the retract end up to 30mm.
A rear screw shortens only the retract end; the extend end is fixed. You must re-tighten the lock nut after setting to prevent vibration drift. The built-in magnet is compatible with AirTAC reed or electronic switches.
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Standard models usually ship in 3-4 days.
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Related AirTAC PBJ Pen-Size Cylinders
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