Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-20S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-20S 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 20mm fine-adjustable window — settable from 80 to 100mm, so you set the end position without changing hardware.
- BoreØ12 mm
- Nominal stroke100 mm
- Adjust window20 mm
- Effective range80–100 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 PBJ12X100-20S
The AirTAC PBJ12X100-20S is a double-acting, double-rod pen-size mini cylinder with a 20mm adjustable window. A rear screw and lock nut shorten the retract end, giving an effective stroke range of 80-100mm. The extend end remains fixed. The M5x0.8 port and Ø5mm stainless rod suit tight jigs.
A fixed TPU bumper cushions the last few millimeters of travel. Because the rod is only Ø5mm, use an external guide for off-axis loads over this 100mm length. The built-in magnet works with reed or electronic switches.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-20S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-20S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 20 mm (80–100 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 PBJ12X100-20S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×100 | Nominal stroke length in mm. |
| -20 | 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 PBJ12X100-20S Is Used
Changeover Fixtures
Dial in the retract distance from 80 to 100mm during product changeovers without swapping cylinder hardware.
Trial Insertion Stops
Fine-tune the depth stop on assembly tooling to test part fit before locking the adjuster nut down.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-20S the Right Cylinder?
Stepping down to a 10mm bore yields 39.3N, while a 16mm bore offers 100.5N. Choose based on your exact thrust requirement. Remember that only the retract position is field-settable; the extend end is fixed. Always re-tighten the lock nut after setting the 80-100mm range to prevent vibration drift. Confirm your bore, 100mm stroke, 20mm window, S magnet, and mounting choice before ordering.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 80–100 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 PBJ12X100-20S FAQ
At 0.5 MPa, push is 56.5N and pull is 46.7N. At the 0.7 MPa maximum, push is 79.1N and pull is 65.4N. The rear adjuster provides an effective stroke range of 80-100mm.
A rear M5x0.8 screw shortens the retract end while the extend end stays fixed. Re-tighten the lock nut after setting. The piston drifts without air pressure, 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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