Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X30-20S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X30-20S 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 30mm stroke with a 20mm fine-adjustable window — settable from 10 to 30mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke30 mm
- Adjust window20 mm
- Effective range10–30 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X30-20S
The AirTAC PBJ16X30-20S is a double-acting, double-rod pen-size mini cylinder featuring a 20mm adjustable stroke window. A rear M5x0.8 adjuster screw shortens the retract end, giving an effective stroke range of 10-30mm. The extend end remains fixed. The integrated -S magnet works with reed or electronic switches.
Built with a SUS304 stainless barrel and a slim Ø16mm body, it saves space in tight jigs. The Ø5mm piston rod has an M10x1.0 end thread. A fixed TPU bumper decelerates the last few millimeters of travel.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X30-20S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X30-20S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 30 mm |
| Adjustable window | 20 mm (10–30 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.
Theoretical Output Force (Ø16mm)
| 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.
Model Code: Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X30-20S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×30 | 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).
Where the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X30-20S Is Used
Variable-Depth Insertion
Dial in precise pressing depths from 10 to 30mm during prototype runs. The rear screw allows exact retract positioning without swapping cylinders.
Quick Changeover Fixtures
Adapt pick-and-place tooling to different part heights rapidly. Set the retract end on the machine, then lock the nut to secure the new stroke window.
Trial Stop Positioning
Use the 16mm body as an adjustable mechanical stop.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X30-20S the Right Cylinder?
Remember that only the retract position is field-adjustable from 10 to 30mm—the extend end is fixed. After setting your length, re-tighten the lock nut so vibration does not drift the screw. Confirm your ordering essentials: bore, stroke, window, S magnet, and mounting (LB/FA).
The air port is M5x0.8. Because the rod is only 5mm thick, use an external guide or linear bearing for off-axis loads over long strokes. This cylinder does not hold position on air loss, so add an external rod lock for fail-safe holding.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 10–30 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 Double rod: the rear rod carries the stroke adjuster.
- 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 PBJ16X30-20S FAQ
The effective stroke range is 10-30mm (nominal 30mm minus a 20mm window). It is double-acting with a 16mm bore.
A rear M5x0.8 screw shortens the retract end only; the extend end is fixed. You must re-tighten the lock nut after setting to prevent vibration drift. The built-in S magnet is compatible with AirTAC reed or electronic switches for position sensing.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PBJ Pen-Size Cylinders
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