
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-10 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 50mm stroke with a 10mm fine-adjustable window — settable from 40 to 50mm, so you set the end position without changing hardware.
The AirTAC PBJ16X50-10 is a JIS pen-size double-acting mini cylinder with a 10mm adjustable-stroke window. A rear adjuster screw (M5x0.8) shortens the retract end, giving an effective stroke range of 40-50mm. The extend end remains fixed. The Ø5mm rod and barrel are stainless steel, and a fixed TPU bumper cushions both ends.
The rear screw lets you tune the retract length on the machine during commissioning, avoiding a hardware reorder for a slightly different length. Because the adjuster only restricts travel, there is zero force penalty. For real work, plan for a safe load of about 60N (roughly 60% of the 100.5N rated push). The thin Ø5mm rod is built for coaxial thrust, so over long strokes or off-axis loads add an external linear guide to prevent side loading.
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-10 |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 50 mm |
| Adjustable window | 10 mm (40–50 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. |
| ×50 | Nominal stroke length in mm. |
| -10 | 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 stop during product changeovers without swapping out the entire cylinder.
Set precise intermediate positions for testing and validation before finalizing a mechanical hard stop.
Adjust the back position to tune insertion depth on light end-of-arm tooling jigs.
Stepping down to a 12mm bore drops push force to 56.5N, while moving up to a larger profile body increases bulk. Remember that only the retract end is adjustable; the extend position is fixed. After setting your 40-50mm range, re-tighten the lock nut to prevent vibration drift. Confirm ordering essentials: 16mm bore, 50mm nominal stroke, 10mm window, no magnet, and mounting choice (blank, LB, or FA). The air port is M5x0.8.
Quick checklist
The effective stroke range is 40-50mm. At 0.5MPa, push force is 100.5N and pull is 90.7N. At the maximum 0.7MPa, push is 140.7N and pull is 126.9N. Adjusting the stroke does not change these forces.
The rear screw shortens only the retract end; the extend end is fixed. 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 stroke end. Use an external stop for a fail-safe hold.
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