Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-20
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-20 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 90mm stroke with a 20mm fine-adjustable window — settable from 70 to 90mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke90 mm
- Adjust window20 mm
- Effective range70–90 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 PBJ16X90-20
The AirTAC PBJ16X90-20 is a double-acting, double-rod pen-size mini cylinder with a 20mm adjustable stroke window. A rear adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 70-90mm. You set the exact length on the machine during commissioning without ordering new hardware. The extend end remains fixed.
The SUS304 stainless rod and barrel provide a slim profile for tight jigs, and a fixed TPU bumper cushions both ends. The M5x0.8 air port and M10x1.0 rod-end thread match standard 16mm bore dimensions.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-20 Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-20 |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 90 mm |
| Adjustable window | 20 mm (70–90 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 PBJ16X90-20
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×90 | 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 PBJ16X90-20 Is Used
Changeover Fixtures
Dial in the exact 70-90mm retract position during product changeovers without machining new stop spacers.
Trial Stops
Fine-tune the end-of-stroke position on test rigs to find the optimal insertion depth before locking the nut.
Variable-Depth Press
Adjust the retract distance on light-duty assembly presses to accommodate varying part heights on the fly.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X90-20 the Right Cylinder?
Remember that only the retract position is tunable; the extend end is fixed. Always re-tighten the lock nut after setting the M5x0.8 adjuster screw to prevent vibration drift. Confirm your ordering essentials: 16mm bore, 90mm nominal stroke, 20mm window, no magnet, and mounting choice.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 70–90 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 PBJ16X90-20 FAQ
The effective stroke range is 70-90mm. At 0.5MPa, push force is 100.5N and pull is 90.7N. At the maximum 0.7MPa operating pressure, push is 140.7N and pull is 126.9N.
A rear M5x0.8 adjuster screw shortens the retract end by up to 20mm. The extend end is fixed. You must re-tighten the lock nut after setting to prevent vibration drift. The cylinder does not hold position on air loss.
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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