Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50S 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 80mm stroke with a 50mm fine-adjustable window — settable from 30 to 80mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke80 mm
- Adjust window50 mm
- Effective range30–80 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 PBJ16X80-50S
The AirTAC PBJ16X80-50S is a double-acting, double-rod pen-size mini cylinder with a 50mm adjustable window, yielding an effective stroke range of 30-80mm. A rear M5x0.8 adjuster screw shortens the retract end, while the extend end remains fixed. The -S suffix adds a built-in piston magnet for reed or electronic switches.
The slim SUS304 stainless body saves space in tight jigs, and a fixed TPU bumper cushions each end. The Ø5mm rod handles coaxial thrust; use an external guide for off-axis loads.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 80 mm |
| Adjustable window | 50 mm (30–80 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 PBJ16X80-50S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | 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).
Where the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50S Is Used
Changeover Fixtures
Rapidly tune the 30-80mm retract distance during product changeovers without machining new hard stops or reordering hardware.
Trial Insertion Stops
Dial in exact insertion depths on the machine. The rear screw lets you test variable depths before locking the nut for production.
Light Vertical Lifts
The built-in magnet confirms position for tight end-of-arm tooling.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X80-50S the Right Cylinder?
If your fixture needs less force, step down; if you need maximum thrust, 16mm is the largest pen-size option. Remember that only the back position is adjustable via the rear screw—extend remains fixed. Always re-tighten the lock nut after setting your 30-80mm range to prevent vibration drift.
Confirm your ordering essentials: 16mm bore, 80mm nominal stroke, 50mm window, S magnet, and any LB or FA mount. The air port is M5x0.8. Note that a plain pneumatic cylinder does not hold position on air loss; the piston drifts and the bumper only decelerates near stroke end. Add an external stop for fail-safe holding.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 30–80 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 PBJ16X80-50S FAQ
The effective stroke range is 30-80mm (80mm nominal minus the 50mm window). Adjusting the stroke does not alter these figures.
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 -S suffix indicates a built-in piston magnet that works with AirTAC reed or electronic switches.
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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