
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X60-20S 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 20mm fine-adjustable window — settable from 40 to 60mm, so you set the end position without changing hardware.
The AirTAC PBJ16X60-20S is a double-acting, double-rod pen-size mini cylinder with a 20mm adjustable stroke window. A rear adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 40-60mm. The extend end remains fixed.
This model features a built-in piston magnet for reed or electronic switches. The SUS304 stainless rod and barrel provide corrosion resistance in a slim body. A fixed TPU bumper cushions each end. The Ø5mm rod handles coaxial thrust; use an external guide for off-axis loads.
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X60-20S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 60 mm |
| Adjustable window | 20 mm (40–60 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. |
| -20 | 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 end from 40 to 60mm during product changeovers without machining new stops.
Fine-tune the back position on test jigs to find the exact 40-60mm stroke before locking the nut.
Set precise insertion depths on light tooling, relying on the fixed TPU bumper for end damping.
The next size up is not standard for this pen series.
Only the retract end is tunable; the extend position is fixed. Always re-tighten the lock nut after setting the M5x0.8 adjuster screw to prevent vibration drift. Confirm ordering essentials: 16mm bore, 60mm nominal stroke, 20mm window, S magnet, and mounting choice.
Quick checklist
The effective stroke range is 40-60mm.
The rear M5x0.8 screw shortens only the retract end; the extend end is fixed. Re-tighten the lock nut after setting to prevent vibration drift. The S suffix means a built-in magnet works with reed or electronic switches.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
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