Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20 is a double-acting pen-size mini cylinder with a rear adjuster screw that shortens the retract end of the stroke. On a Ø10mm bore it gives a nominal 80mm stroke with a 20mm fine-adjustable window — settable from 60 to 80mm, so you set the end position without changing hardware.
- BoreØ10 mm
- Nominal stroke80 mm
- Adjust window20 mm
- Effective range60–80 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20
The AirTAC PBJ10X80-20 is a double-acting, single-rod pen-size mini cylinder with a 20mm adjustable stroke window. A rear adjuster screw (M4x0.7 thread) shortens the retract end, giving an effective stroke range of 60-80mm. The extend end remains fixed. It delivers 39.3N push and 33N pull at 0.5MPa, matching standard PB output without any force penalty. The bore is 10mm, the port is M5x0.8, and the rod-end thread is M8x1.0.
The slim SUS304 stainless body saves space in tight jigs. A fixed TPU bumper cushions both ends but only decelerates the last few millimeters. For higher speeds with real tooling mass, meter-out the exhaust or add an external shock absorber. The Ø4mm rod handles coaxial thrust well, but over long strokes or off-axis loads, add an external guide to prevent side-load damage.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20 Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20 |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Nominal stroke | 80 mm |
| Adjustable window | 20 mm (60–80 mm) |
| Adjuster thread | M4×0.7 |
| 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 100 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 (Ø10mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 39.3 N | 33.0 N |
| 0.7 MPa (max) | 55.0 N | 46.2 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 PBJ10X80-20
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×80 | 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 PBJ10X80-20 Is Used
Changeover Fixtures
Dial in the retract stop from 60 to 80mm during product changeovers without machining new hard stops.
Trial Stops
Fine-tune the back position for prototyping and testing different sensor distances on the fly.
Variable-Depth Insert
Adjust the end-of-stroke position for varying part heights without swapping the entire cylinder.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20 the Right Cylinder?
When sizing, consider the 12mm bore if you need more force, which provides 56.5N push at 0.5MPa. If your load is lighter, dropping to a smaller bore saves weight. Remember that only the retract position is field-settable; the extend end is fixed. After dialing in your 60-80mm length, re-tighten the lock nut because vibration can drift an unlocked screw. Confirm your ordering essentials: 10mm bore, 80mm nominal stroke, 20mm window, no magnet, and your preferred mounting option.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 60–80 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 PBJ10X80-20 FAQ
It provides 39.3N push and 33N pull at 0.5MPa, and 55N push and 46.2N pull at 0.7MPa (the maximum operating pressure). The nominal stroke is 80mm with a 20mm adjustable window, yielding an effective stroke range of 60-80mm.
A rear screw shortens the retract end only, while the extend end stays fixed. You must re-tighten the lock nut after setting your length to prevent vibration drift. A plain cylinder does not hold position on air loss; the piston drifts and the fixed TPU bumper only decelerates near stroke end, so use an external stop for fail-safe holding.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PBJ Pen-Size Cylinders
Request a Quote for Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X80-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.