Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X125-30
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X125-30 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 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
- 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 PBJ16X125-30
The AirTAC PBJ16X125-30 is a double-acting, double-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.
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.
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 |
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 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?
Dropping to a 12mm bore yields 56.5N, while no larger PBJ bore exists.
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 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 PBJ16X125-30 FAQ
The effective stroke range is 95-125mm.
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 are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PBJ Pen-Size Cylinders
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