
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-50S is a double-acting pen-size mini cylinder with a rear adjuster screw that shortens the retract end of the stroke. On a Ø10mm bore it gives a nominal 80mm stroke with a 50mm fine-adjustable window — settable from 30 to 80mm, so you set the end position without changing hardware.
The AirTAC PBJ10X80-50S is a double-acting, single-rod pen-size mini cylinder with a 50mm adjustable window. A rear M4x0.7 adjuster screw shortens the retract end, giving an effective stroke range of 30-80mm. You set the exact return length on the machine without ordering new hardware. The extend end remains fixed.
Output force matches a standard PB cylinder of the same bore, providing 39.3N push at 0.5MPa. The slim SUS304 stainless body saves space in tight jigs. The built-in magnet (-S) works with reed or electronic switches. Good practice loads a cylinder to roughly 60% of its theoretical force, so plan for about 24N of real work at 0.5MPa. The M5x0.8 port and fixed TPU bumper handle standard duty, while the Ø4mm rod requires an external guide for off-axis loads.
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-50S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Nominal stroke | 80 mm |
| Adjustable window | 50 mm (30–80 mm) |
| Adjuster thread | M4×0.7 |
| 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 100 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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 39.3 N | 33.0 N |
| 0.7 MPa (max) | 55.0 N | 46.2 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.
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×80 | 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 stop during product changeovers. The 30-80mm window lets operators swap part families without machining new hard stops.
Set precise insertion depths on the fly. The rear screw tunes the retract position for testing fit before locking the nut for production.
Adjust the return position for light pressing tasks. The 39.3N push force handles delicate components while the TPU bumper cushions the stroke ends.
This 10mm bore delivers 39.3N push at 0.5MPa. Stepping up to the 12mm bore raises push to 56.5N, while dropping below 10mm is not standard for this series. Remember that only the retract end is adjustable; the extend stroke is fixed. Always re-tighten the lock nut after setting your 30-80mm range to prevent vibration drift. Confirm your ordering essentials: 10mm bore, 80mm nominal stroke, 50mm window, S magnet, and any LB or FA mount.
Quick checklist
The effective stroke range is 30-80mm. At 0.5MPa it provides 39.3N push and 33N pull. At the 0.7MPa maximum, it provides 55N push and 46.2N pull. Adjusting the stroke does not change these forces.
The -S suffix means a built-in piston magnet for reed or electronic switches. The rear M4x0.7 screw shortens only the retract end; the extend end is fixed. You must re-tighten the lock nut after setting to stop vibration drift.
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