
The AirTAC PBJ Adjustable Pen-Type Cylinder PBJ16X60-50S 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 60mm stroke with a 50mm fine-adjustable window — settable from 10 to 60mm, so you set the end position without changing hardware.
The AirTAC PBJ16X60-50S is a double-acting, double-rod pen-size mini cylinder with a 50mm adjustable stroke window. A rear adjuster screw and lock nut trim the retract end, giving an effective stroke range of 10-60mm. The extend end remains fixed.
This bore 16 unit features a slim SUS304 stainless barrel and a built-in piston magnet for reed or electronic switches. The M5x0.8 air port and fixed TPU bumper are standard. Because the rod is a slender Ø5mm, use an external guide for any off-axis loads. A plain cylinder does not hold position on air loss; the bumper only decelerates near the stroke end.
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X60-50S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 60 mm |
| Adjustable window | 50 mm (10–60 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 | 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.
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×60 | Nominal stroke length in mm. |
| -50 | 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 exact retract position on the fly when switching product families on a shared jig, using the 10-60mm range to adapt without machining new stops.
Set specific bottoming positions for light pressing tasks, taking advantage of the built-in magnet to confirm the adjusted end-of-stroke with a sensor.
Remember that only the retract position is tunable, so verify your extend layout.
After setting the rear screw, re-tighten the lock nut to prevent vibration drift. Confirm your ordering essentials: 16mm bore, 60mm nominal stroke, 50mm window, S magnet, and any LB or FA mount. The fixed TPU bumper only decelerates the final few millimeters, so meter-out the exhaust or add a shock absorber when cycling at high speed with heavy tooling.
Quick checklist
The rear screw provides an effective stroke range of 10-60mm by shortening the retract end up to 50mm. The extend end is fixed.
A rear M5x0.8 adjuster screw shortens the retract stroke, and you must re-tighten the lock nut after setting to prevent vibration drift. A plain cylinder does not hold its load on air loss or when a valve is centered; the piston drifts and the fixed TPU bumper only decelerates near the stroke end, so use an external rod lock for fail-safe holding.
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