Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-50S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-50S 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 90mm stroke with a 50mm fine-adjustable window — settable from 40 to 90mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke90 mm
- Adjust window50 mm
- Effective range40–90 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 PBJ16X90-50S
The AirTAC PBJ16X90-50S is a double-acting, double-rod pen-size mini cylinder with a 50mm adjustable window. A rear adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 40-90mm. You set the exact length on the machine without buying new hardware. The extend end remains fixed. The bore is 16mm, the rod is Ø5mm, and the air port is M5x0.8.
The SUS304 stainless build includes a fixed TPU bumper at each end to decelerate motion over the final few millimeters. Because the rod is only Ø5mm, use an external guide for off-axis loads to prevent side load. The -S suffix adds a built-in piston magnet for position sensing.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-50S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-50S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 90 mm |
| Adjustable window | 50 mm (40–90 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 PBJ16X90-50S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×90 | 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 PBJ16X90-50S Is Used
Changeover Fixtures
Dial in the retract from 40 to 90mm during product changeovers to hit different stop depths without swapping cylinders.
Trial Stops
Fine-tune the back position on test jigs to find the exact insertion depth before locking the nut for production.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-50S the Right Cylinder?
If your application needs more power, step up to the larger bore. Remember that only the retract position is adjustable; the extend end is fixed. After setting your stroke, re-tighten the lock nut because vibration can drift an unlocked screw. Confirm your ordering essentials: 16mm bore, 90mm nominal stroke, 50mm window, S magnet, and your preferred mount.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 40–90 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 PBJ16X90-50S FAQ
The effective stroke range is 40-90mm. At 0.5MPa, push is 100.5N and pull is 90.7N. At the maximum 0.7MPa operating pressure, push is 140.7N and pull is 126.9N. The air port is M5x0.8 and the rod-end thread is M10x1.0.
The rear M5x0.8 screw shortens only the retract end; the extend end is fixed. You must re-tighten the lock nut after setting to prevent vibration drift. The built-in -S magnet works with AirTAC reed or electronic switches. Note that a plain cylinder does not hold position on air loss.
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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