Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X35-20S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X35-20S 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 35mm stroke with a 20mm fine-adjustable window — settable from 15 to 35mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke35 mm
- Adjust window20 mm
- Effective range15–35 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 PBJ16X35-20S
The AirTAC PBJ16X35-20S is a double-acting, double-rod pen-size mini cylinder with a 20mm adjustable window. A rear M5x0.8 adjuster screw and lock nut shortens the retract end, giving an effective stroke range of 15-35mm. The extend end remains fixed.
The Ø5mm piston rod and barrel are SUS304 stainless, fitting a slim body with a fixed TPU bumper at each end. The built-in magnet works with reed or electronic switches. This cylinder uses an M5x0.8 port and an M10x1.0 rod-end thread.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X35-20S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X35-20S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 35 mm |
| Adjustable window | 20 mm (15–35 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 PBJ16X35-20S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×35 | Nominal stroke length in mm. |
| -20 | 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 PBJ16X35-20S Is Used
Changeover Fixtures
Dial in the exact retract position from 15 to 35mm during product changeovers without machining new stops.
Trial Insertion Stops
Fine-tune insertion depth on test jigs by adjusting the back screw, locking the nut once the correct length is found.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X35-20S the Right Cylinder?
If you need maximum thrust, the 16mm is ideal, but if your load is lighter, the 12mm saves space. Remember that only the retract position is field-settable; the extend end is fixed. Always re-tighten the lock nut after setting to prevent vibration drift.
Confirm your ordering essentials: 16mm bore, 35mm nominal stroke, 20mm window, S for the built-in magnet, and your mounting choice. The thin Ø5mm rod handles coaxial thrust well, but over long strokes or with off-axis loads, add an external guide or linear bearing to prevent side-load damage.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 15–35 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 PBJ16X35-20S FAQ
The effective stroke range is 15-35mm. At 0.5MPa, push force is 100.5N and pull is 90.7N. At the maximum 0.7MPa, push is 140.7N and pull is 126.9N. Adjusting the stroke does not alter these forces.
A rear M5x0.8 screw shortens the retract end, while the extend end remains fixed. You set the position on the machine, then re-tighten the lock nut to prevent vibration drift. The built-in S magnet works with reed or electronic switches.
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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