Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X150-50S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X150-50S 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 150mm stroke with a 50mm fine-adjustable window — settable from 100 to 150mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke150 mm
- Adjust window50 mm
- Effective range100–150 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X150-50S
The AirTAC PBJ16X150-50S is a double-acting, single-rod pen-size mini cylinder with a 50mm adjustable stroke window. A rear M5x0.8 adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 100-150mm. The extend end remains fixed. It delivers 100.5N push and 90.7N pull at 0.5MPa, matching standard PB force without penalty. The M5x0.8 air port and Ø5mm rod are paired with a fixed TPU bumper at each end.
This SUS304 stainless build includes a built-in piston magnet for reed or electronic switches. The slim body saves space in tight jigs. For practical sizing, plan for a safe working load of about 60N (roughly 60% of the 0.5MPa push figure) or a vertical lift of about 5.1kg with a 2:1 margin. The thin Ø5mm rod handles coaxial thrust; over long strokes add an external guide to prevent side-load wear.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X150-50S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X150-50S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 50 mm (100–150 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 PBJ16X150-50S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×150 | 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 PBJ16X150-50S Is Used
Changeover Fixtures
Dial in the exact retract distance from 100 to 150mm during product changeovers without machining new stops or reordering cylinders.
Trial Insertion Stops
Fine-tune insertion depths on test jigs. The rear adjuster lets you tweak the back position while the forward extend stroke remains fixed.
Variable Depth Pressing
Set precise end-of-stroke positions for light pressing tasks. The built-in magnet works with reed or electronic switches for position confirmation.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X150-50S the Right Cylinder?
At 0.5MPa this 16mm bore yields 100.5N push. If you need less force, stepping down to a 12mm bore provides 56.5N push; if you need more, a larger profile cylinder is required. Remember that only the retract position is tunable from 100 to 150mm, while the extend end is fixed. Always re-tighten the lock nut after setting the rear screw to prevent vibration drift. Confirm your ordering essentials: 16mm bore, 150mm nominal stroke, 50mm window, S magnet, and mounting accessories.
The fixed TPU bumper only decelerates the last few millimeters of travel. At mid-to-high speeds with real tooling mass, the bumper can bottom out, so meter-out the exhaust or fit an external shock absorber. A plain cylinder does not hold position on air loss; use an external stop for fail-safe load holding.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 100–150 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 PBJ16X150-50S FAQ
It provides 100.5N push and 90.7N pull at 0.5MPa, and 140.7N push and 126.9N pull at the 0.7MPa maximum. The nominal stroke is 150mm with a 50mm adjustable window, yielding an effective stroke range of 100-150mm. Force is unchanged from a standard PB cylinder of the same bore.
A rear M5x0.8 adjuster screw shortens the retract end of the stroke, while the extend end stays fixed. You set the effective length on the machine, then must re-tighten the lock nut to prevent vibration drift. The built-in S magnet is compatible with reed or electronic switches.
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Related AirTAC PBJ Pen-Size Cylinders
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