Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40S 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 75mm stroke with a 40mm fine-adjustable window — settable from 35 to 75mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke75 mm
- Adjust window40 mm
- Effective range35–75 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40S
The AirTAC PBJ16X75-40S is a double-acting, single-rod pen-size mini cylinder with a 40 mm adjustable window. A rear screw and lock nut shorten the retract end, yielding an effective stroke range of 35-75 mm. The extend end remains fixed. Output force matches a standard PB body, delivering 100.5 N push at 0.5 MPa. The M5x0.8 air port and SUS304 stainless build fit tight jigs.
The built-in magnet supports reed or electronic switches. Because the thin Ø5 mm piston rod handles coaxial thrust, add an external guide for off-axis loads. The fixed TPU bumper decelerates the last few mm; at high speeds with real mass, meter-out the exhaust. For a safe working load, plan for about 60 N of real work at 0.5 MPa, which lifts roughly 5.1 kg vertically with a 2:1 margin.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 75 mm |
| Adjustable window | 40 mm (35–75 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 PBJ16X75-40S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×75 | Nominal stroke length in mm. |
| -40 | 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 PBJ16X75-40S Is Used
Variable-Depth Insertion
Dial in precise press depths on the fly. The 35-75 mm retract window lets you test multiple insertion heights during commissioning without swapping cylinders.
Quick Changeover Fixtures
Adapt pick-and-place tooling to new part sizes rapidly. Turn the rear M5x0.8 adjuster to shift the back position, then lock the nut for repeatable cycles.
Trial Stop Positioning
Set exact end-of-stroke stops for delicate components. The fixed TPU bumper absorbs final impact while the screw brings the retract point exactly where needed.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40S the Right Cylinder?
This 16 mm bore provides 100.5 N push at 0.5 MPa. Stepping down to a 12 mm bore drops push to 56.5 N, while no larger bore exists in the PBJ series. The rear adjuster tunes the retract end only; set your length, then re-tighten the lock nut so vibration does not drift the screw. Confirm ordering essentials: 16 mm bore, 75 mm nominal stroke, 40 mm window, S magnet, and any LB or FA mount.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 35–75 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 PBJ16X75-40S FAQ
The effective stroke range is 35-75 mm. At 0.5 MPa, push is 100.5 N and pull is 90.7 N. At the 0.7 MPa maximum, push is 140.7 N and pull is 126.9 N. Adjusting the stroke does not alter these forces.
A rear screw shortens the retract end only; the extend end is fixed. You set the position, then re-tighten the lock nut to prevent vibration drift. The built-in S magnet works with reed or electronic switches.
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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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