Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40 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 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
- 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 PBJ16X75-40
The AirTAC PBJ16X75-40 is a double-acting, double-rod pen-size mini cylinder featuring a 40mm adjustable window. A rear adjuster screw and lock nut let you shorten the retract end, providing an effective stroke range of 35 to 75mm. The extend end remains fixed. It uses an M5x0.8 air port and a rod-end thread of M10x1.0.
The 5mm stainless steel rod and barrel offer a slim profile. A fixed TPU bumper at each end decelerates the last few millimeters of travel.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40 Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40 |
|---|---|
| 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 |
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 PBJ16X75-40
| 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 PBJ16X75-40 Is Used
Changeover Fixtures
Dial in the retract end from 35 to 75mm to switch product sizes on a single jig without machining new hard stops.
Variable-Depth Insertion
Tune the exact rear position on a press station for delicate part insertion, locking the nut once the depth is proven.
Trial Stop Positioning
Set precise retract limits during prototype testing, exploring the 40mm window to find the optimal end position before finalizing the layout.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X75-40 the Right Cylinder?
Remember that only the retract position is field-settable; the extend end is fixed. After dialing in your 35-75mm range, re-tighten the lock nut because vibration can drift an unlocked screw. Confirm your ordering essentials: 16mm bore, 75mm nominal stroke, 40mm window, and any required LB or FA mount.
Because the 5mm rod is designed for coaxial thrust, over long strokes or off-axis loads you should add an external guide or linear bearing to prevent side load. The fixed TPU bumper only decelerates the last few mm; above mid speed with real tooling mass it bottoms out, so meter-out the exhaust or fit an external shock absorber. This plain cylinder does not hold position on air loss; the piston drifts without live pressure.
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 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 PBJ16X75-40 FAQ
The effective stroke range is 35 to 75mm. At 0.5MPa, push force is 100.5N and pull force is 90.7N. At the maximum 0.7MPa operating pressure, push is 140.7N and pull is 126.9N.
The rear M5x0.8 screw shortens the retract end by up to 40mm, while the extend end remains fixed. You must re-tighten the lock nut after setting your desired length 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 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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