
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-100S 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 100mm fine-adjustable window, so you set the end position without changing hardware.
The AirTAC PBJ12X100-100S is a double-acting, double-rod pen-size mini cylinder with a 100mm adjustable window. A rear screw and lock nut shorten the retract end, yielding an effective stroke range of 0-100mm. The extend end remains fixed. The Ø5mm rod and barrel are SUS304 stainless, and a fixed TPU bumper cushions each end.
You can dial in the exact stroke on the machine during commissioning without buying new hardware. The built-in magnet works with reed or electronic switches, and the air port is M5x0.8.
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ12X100-100S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 100 mm |
| Adjustable window | 100 mm (0–100 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.
| 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.
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×100 | Nominal stroke length in mm. |
| -100 | 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).
Dial in the retract length on the spot when swapping product families on a shared line, avoiding hardware changes.
Nose down to find the exact seating depth for a new insert, then lock the nut to repeat the cycle.
Gradually reduce the back position to press parts to varying depths without swapping out the cylinder body.
Remember that only the retract position is settable here; the extend end is fixed. After finding the right length, re-tighten the lock nut because vibration can drift an unlocked screw. Confirm your ordering essentials: 12mm bore, 100mm nominal stroke, 100mm window, S magnet, and any LB or FA mount.
The thin Ø5mm rod is built for coaxial thrust, so over this 100mm stroke or with off-axis loads, add an external guide or linear bearing to prevent side-load wear.
Quick checklist
The effective stroke range is 0-100mm. At 0.5 MPa, push is 56.5N and pull is 46.7N. At the maximum 0.7 MPa, push is 79.1N and pull is 65.4N. Adjusting the stroke does not alter these forces.
A rear M5x0.8 adjuster screw shortens the retract end while the extend end remains fixed; re-tighten the lock nut after setting. The cylinder does not hold position on air loss, as the piston drifts and the fixed TPU bumper only decelerates near the end. Use an external stop for a fail-safe hold.
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