Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-10
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-10 is a double-acting pen-size mini cylinder with a rear adjuster screw that shortens the retract end of the stroke. 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.
- BoreØ16 mm
- Nominal stroke50 mm
- Adjust window10 mm
- Effective range40–50 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-10
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. Output force equals a standard PB of the same bore, delivering 100.5N push and 90.7N pull at 0.5MPa. 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.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-10 Technical Specifications
| 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 |
The adjuster shortens only the retract end; the extend end is fixed. Force is unchanged from the standard PB double-acting cylinder. Confirm the set position against the product label before installation.
Theoretical Output Force (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 100.5 N | 90.7 N |
| 0.7 MPa (max) | 140.7 N | 126.9 N |
Adjusting the stroke does not change output force — these are the same values as the standard PB double-acting cylinder of the same bore. Size with a friction margin.
Model Code: Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-10
| 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).
Where the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-10 Is Used
Changeover Fixtures
Dial in the exact retract stop during product changeovers without swapping out the entire cylinder.
Trial Stops
Set precise intermediate positions for testing and validation before finalizing a mechanical hard stop.
Variable-Depth Insert
Adjust the back position to tune insertion depth on light end-of-arm tooling jigs.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-10 the Right Cylinder?
This 16mm bore provides 100.5N push at 0.5MPa. 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
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 40–50 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 The adjuster shortens the retract end only.
- 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 PBJ16X50-10 FAQ
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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Related AirTAC PBJ Pen-Size Cylinders
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