
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-30S 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 75mm stroke with a 30mm fine-adjustable window — settable from 45 to 75mm, so you set the end position without changing hardware.
The AirTAC PBJ16X75-30S is a double-acting, double-rod pen-size mini cylinder featuring a 30mm adjustable stroke window. A rear adjuster screw with a lock nut shortens the retract end, giving an effective stroke range of 45mm to 75mm. The M5x0.8 air port and M10x1.0 rod-end thread match the 16mm bore standard.
This stainless steel build includes a built-in piston magnet for reed or electronic switches and a fixed TPU bumper at each end. The thin Ø5mm piston rod is designed for coaxial thrust; over long strokes or off-axis loads, add an external guide to prevent side-load damage. A plain cylinder does not hold position on air loss, so use an external stop for fail-safe load holding.
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-30S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 75 mm |
| Adjustable window | 30 mm (45–75 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. |
| ×75 | Nominal stroke length in mm. |
| -30 | 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).
Rapidly tune the 45-75mm retract end during product family changeovers on a single jig without machining new spacer blocks.
Dial in exact insertion depths for delicate press-fit operations, testing variable depths before locking the adjuster nut.
Adjust the back position on light end-of-arm tooling to accommodate multiple part heights without swapping cylinders.
Remember that only the retract end is settable while the extend position remains fixed. After dialing in your 45-75mm range, re-tighten the lock nut on the M5x0.8 adjuster thread to prevent vibration drift. Confirm your ordering essentials: 16mm bore, 75mm nominal stroke, 30mm window, S magnet, and any LB or FA mounting hardware.
Quick checklist
The effective stroke range is 45mm to 75mm (75mm nominal minus the 30mm window). At 0.5MPa, push force is 100.5N and pull force is 90.7N. At the maximum 0.7MPa operating pressure, push is 140.7N and pull is 126.9N.
The rear M5x0.8 adjuster screw shortens only the retract end while the extend end remains fixed; re-tighten the lock nut after setting to prevent vibration drift. The S suffix indicates a built-in piston magnet compatible with AirTAC reed or electronic switches.
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