Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-50S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-50S is a double-acting pen-size mini cylinder with a rear adjuster screw that shortens the retract end of the stroke. 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
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-50S
The AirTAC PBJ16X90-50S is a double-acting, single-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. Output force matches the standard PB series, yielding 100.5N push and 90.7N pull at 0.5MPa. 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. For practical sizing, plan for about 60N of real work at 0.5MPa, which safely lifts roughly 5.1kg vertically with a 2:1 margin. 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 |
The adjuster shortens only the retract end; the extend end is fixed. Force is unchanged from the standard PB double-acting cylinder. Confirm the set position against the product label before installation.
Theoretical Output Force (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 100.5 N | 90.7 N |
| 0.7 MPa (max) | 140.7 N | 126.9 N |
Adjusting the stroke does not change output force — these are the same values as the standard PB double-acting cylinder 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.
Variable-depth Insert
Press pins or plugs at varied depths using the rear screw, lifting parts up to roughly 5.1kg vertically.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-50S the Right Cylinder?
When sizing this 16mm bore, the 12mm version provides 56.5N push, while the 16mm PBJ16X90-50S offers 100.5N push at 0.5MPa. 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 The adjuster shortens the retract end only.
- 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.
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Standard models usually ship in 3-4 days.
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Related AirTAC PBJ Pen-Size Cylinders
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