Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-75S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-75S is a double-acting, double-rod pen-size mini cylinder whose rear rod carries a stroke adjuster. On a Ø12mm bore it gives a nominal 100mm stroke with a 75mm fine-adjustable window — settable from 25 to 100mm, so you set the end position without changing hardware.
- BoreØ12 mm
- Nominal stroke100 mm
- Adjust window75 mm
- Effective range25–100 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 PBJ12X100-75S
The AirTAC PBJ12X100-75S is a JIS pen-size double-acting mini cylinder with a 75mm adjustable window. A rear screw shortens the retract end, giving an effective stroke range of 25 to 100mm. You set the exact length on the machine without ordering new hardware. The extend end remains fixed. It features a built-in magnet for position sensing.
The Ø5mm piston rod and barrel are SUS304 stainless. A fixed TPU bumper cushions each end. The thin rod handles coaxial thrust, so add an external guide for any off-axis loads over this long stroke.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-75S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-75S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 75 mm (25–100 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 (Ø12mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 46.7 N | 46.7 N |
| 0.7 MPa (max) | 65.4 N | 65.4 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 PBJ12X100-75S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×100 | 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 PBJ12X100-75S Is Used
Changeover Fixtures
Dial in the retract distance from 25 to 100mm when switching product families on a shared jig.
Trial Insertion Stops
Fine-tune the back position for variable-depth press fits without swapping out the whole cylinder.
Variable Depth Assembly
Set precise end-of-stroke positions for light end-of-arm tooling tasks requiring exact placement.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-75S the Right Cylinder?
This PBJ12X100-75S uses an M5x0.8 air port and an M10x1.0 rod-end thread. Remember that only the back position is settable via the M5x0.8 adjuster screw. Always re-tighten the lock nut after tuning to prevent vibration drift. Confirm your ordering essentials: 12mm bore, 100mm nominal stroke, 75mm window, S magnet, and any LB or FA mount.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 25–100 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 PBJ12X100-75S FAQ
The effective stroke range is 25 to 100mm. Adjusting the stroke does not alter these forces.
The rear M5x0.8 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 -S suffix means a built-in piston magnet works with AirTAC reed or electronic switches.
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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