Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X125-30
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X125-30 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 125mm stroke with a 30mm fine-adjustable window — settable from 95 to 125mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke125 mm
- Adjust window30 mm
- Effective range95–125 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X125-30
The AirTAC PBJ16X125-30 is a double-acting, single-rod pen-size mini cylinder with a 30mm adjustable window. A rear screw shortens the retract end, giving an effective stroke range of 95-125mm. You set the exact length on the machine without changing hardware. The extend end remains fixed.
Force is identical to a standard PB body, delivering 100.5N push at 0.5MPa. The slim SUS304 stainless body and fixed TPU bumper save space in tight jigs. The M5x0.8 air port and M10x1.0 rod-end thread match the 16mm bore standard. Plan for a safe working load of about 60N, which allows for seal friction.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X125-30 Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X125-30 |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 125 mm |
| Adjustable window | 30 mm (95–125 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 PBJ16X125-30
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×125 | 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 PBJ16X125-30 Is Used
Changeover Fixtures
Dial in the exact retract distance when swapping product families on a shared jig, avoiding hardware changes.
Trial Stops
Fine-tune the end position in 95-125mm during prototype testing until the kinematic motion is perfect.
Variable-Depth Insert
Adjust the back position on the fly for differing part heights without reordering a new cylinder.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X125-30 the Right Cylinder?
This 16mm bore gives 100.5N push at 0.5MPa. Dropping to a 12mm bore yields 56.5N, while no larger PBJ bore exists. Choose this size if you need the 100.5N thrust within a 95-125mm length window.
Remember only the retract end is adjustable. Set the rear screw, then re-tighten the lock nut so vibration cannot drift the length. Confirm your bore, 125mm stroke, 30mm window, and mounting choice before ordering.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 95–125 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 PBJ16X125-30 FAQ
The effective stroke range is 95-125mm. It delivers 100.5N push and 90.7N pull at 0.5MPa, and 140.7N push and 126.9N pull at the 0.7MPa maximum.
A rear M5x0.8 adjuster screw shortens the retract end up to 30mm; the extend end is fixed. You must re-tighten the lock nut after setting to prevent vibration drift.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PBJ Pen-Size Cylinders
Request a Quote for Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X125-30
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.