Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-50
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-50 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 50mm stroke with a 50mm fine-adjustable window, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke50 mm
- Adjust window50 mm
- Effective range0–50 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-50
The AirTAC PBJ16X50-50 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 0-50mm. The extend end remains fixed. Output matches a standard PB of the same bore, yielding 100.5N push and 90.7N pull at 0.5MPa.
The slim body features a SUS304 stainless rod and barrel, plus a fixed TPU bumper at each end. The M5x0.8 port and M10x1.0 rod-end thread keep installation simple. Plan for a safe working load of about 60N (roughly 60% of the 0.5MPa push figure) to account for seal friction and smooth travel.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-50 Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-50 |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 50 mm |
| Adjustable window | 50 mm (0–50 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 |
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 PBJ16X50-50
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×50 | 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 PBJ16X50-50 Is Used
Changeover Fixtures
Dial in the exact retract position for different part heights without swapping hardware.
Trial Stops
Set precise end positions during prototype testing to find optimal stroke limits.
Variable-Depth Insertion
Tune the retract distance to control insertion depth for varying component lengths.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-50 the Right Cylinder?
This 16mm bore provides 100.5N push at 0.5MPa. If sizing neighbours, dropping to a 12mm bore gives 56.5N push, while this 16mm unit is the largest available in the series. Remember that only the retract position is field-settable; the extend end is fixed. Always re-tighten the lock nut after tuning to prevent vibration drift.
Confirm your ordering essentials: 16mm bore, 50mm nominal stroke, 50mm adjuster window, and whether you need an LB or FA mount. This variant lacks a sensor magnet.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 0–50 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 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 PBJ16X50-50 FAQ
The effective stroke range is 0-50mm. Force is identical to a standard PB 16mm bore: 100.5N push and 90.7N pull at 0.5MPa, or 140.7N push and 126.9N pull at the 0.7MPa maximum.
The M5x0.8 rear screw shortens only the retract end; the extend end is fixed. After setting your desired position, you must re-tighten the lock nut to prevent vibration drift.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PBJ Pen-Size Cylinders
Request a Quote for Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X50-50
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.