Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-30S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-30S 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 30mm fine-adjustable window — settable from 70 to 100mm, so you set the end position without changing hardware.
- BoreØ12 mm
- Nominal stroke100 mm
- Adjust window30 mm
- Effective range70–100 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 PBJ12X100-30S
The AirTAC PBJ12X100-30S is a double-acting, double-rod 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 70-100mm from a nominal 100mm. The extend end remains fixed. The M5x0.8 air port and Ø5mm stainless steel rod handle coaxial thrust, while a fixed TPU bumper cushions each end.
Because the adjuster carries no force penalty, you can dial in the exact return position on the machine. The built-in magnet (-S) allows mounting reed or electronic switches for position sensing.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-30S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-30S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 30 mm (70–100 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 PBJ12X100-30S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×100 | 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 PBJ12X100-30S Is Used
Variable-Depth Insertion
Dial in precise 70-100mm insertion depths for pressing pins or bearings during prototype runs without machining new hard stops.
Changeover Fixtures
Quickly adjust the retract position to accommodate different part heights on a multi-product assembly line.
Trial Stroke Positioning
Fine-tune the return point during machine commissioning to find the exact clamping distance before locking the nut.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-30S the Right Cylinder?
Remember that only the retract position is adjustable on the PBJ12X100-30S—the extend end is fixed. Always re-tighten the lock nut over the M5x0.8 adjuster thread after setting your 70-100mm range, as vibration can drift an unlocked screw. Confirm your ordering essentials: 12mm bore, 100mm nominal stroke, 30mm window, S magnet, and any LB or FA mounting hardware.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 70–100 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 PBJ12X100-30S FAQ
The effective stroke range is 70-100mm (nominal 100mm minus up to 30mm).
The 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. A plain PBJ does not hold position on air loss—the piston drifts, and the fixed TPU bumper only decelerates near the stroke end, so an external rod lock is needed for fail-safe holding.
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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