Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-30
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-30 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 50mm stroke with a 30mm fine-adjustable window — settable from 20 to 50mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke50 mm
- Adjust window30 mm
- Effective range20–50 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 PBJ16X50-30
The AirTAC PBJ16X50-30 is a double-acting, adjustable-stroke pen cylinder built on a stainless steel slim mini body. A rear adjuster screw with a lock nut shortens the retract end, giving an effective stroke range of 20-50 mm. The extend end remains fixed. The air port is M5x0.8 and the rod-end thread is M10x1.0.
The fixed TPU bumper decelerates the last few millimeters of travel. Because the piston rod is only Ø5 mm, use an external guide or linear bearing for off-axis loads over long strokes. For safe practice, plan for about 60 N of real work at 0.5 MPa, which accounts for seal friction and smooth travel.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-30 Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-30 |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 50 mm |
| Adjustable window | 30 mm (20–50 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 PBJ16X50-30
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×50 | 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).
Where the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-30 Is Used
Changeover Fixtures
Set variable retract stops during product changeovers to accommodate different part heights without swapping hardware.
Trial Stops
Dial in the exact 20-50 mm retract position during R&D testing before finalizing a fixed-stroke design.
Variable-Depth Insert
Adjust the downward extend depth on the fly for pressing operations with varying material thicknesses.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-30 the Right Cylinder?
Remember that only the retract end is adjustable, so verify your layout allows access to the rear screw. Re-tighten the lock nut after setting to prevent vibration drift.
Confirm your ordering essentials: bore, stroke, window, magnet, and mount. This base PBJ16X50-30 has no sensor magnet. If you need a fixed length, choose the PB series; for front bolt mounting, select PBR.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 20–50 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 PBJ16X50-30 FAQ
The effective stroke range is 20-50 mm.
A rear adjuster screw shortens the retract end of the stroke, while the extend end remains fixed. After setting your desired length, re-tighten the lock nut to prevent vibration drift. A plain PBJ does not hold position on air loss, so use an external stop for fail-safe holding.
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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