Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X150-20S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X150-20S 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 150mm stroke with a 20mm fine-adjustable window — settable from 130 to 150mm, so you set the end position without changing hardware.
- BoreØ10 mm
- Nominal stroke150 mm
- Adjust window20 mm
- Effective range130–150 mm
- Port sizeM5×0.8
- Acting typeDouble acting
About the Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X150-20S
The AirTAC PBJ10X150-20S is a double-acting, single-rod pen-size mini cylinder with a built-in magnet. A rear adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 130 to 150 mm. The extend end remains fixed. Output force is free of any adjustment penalty, matching the standard PB series exactly at 39.3 N push and 33 N pull at 0.5 MPa.
This unit features a slim SUS304 stainless body and a fixed TPU bumper at each end. The 150 mm stroke exceeds the 100 mm standard maximum for this 10 mm bore, making it a non-standard, made-to-order item. The Ø4 mm piston rod is built for coaxial thrust; over this long stroke, adding an external guide or linear bearing is highly recommended to prevent side-load damage.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X150-20S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X150-20S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Nominal stroke | 150 mm |
| Adjustable window | 20 mm (130–150 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 PBJ10X150-20S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×150 | 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 PBJ10X150-20S Is Used
Changeover Fixtures
Dial in the retract stop on the machine to switch between part heights without machining new hardware.
Trial Stops
Fine-tune the end position in 130 to 150 mm steps during prototyping to find the exact contact point.
Variable Depth Insertion
Set the rear screw to alter insertion depth on light end-of-arm tooling without reordering cylinders.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ10X150-20S the Right Cylinder?
For lighter or heavier jobs, the 12 mm bore delivers 56.5 N push while an 8 mm bore offers less force. This PBJ10X150-20S uses an M5x0.8 port and an M8x1.0 rod-end thread. You can only tune the back position, so set your retract distance and re-tighten the lock nut to prevent vibration drift. Confirm your ordering essentials: 10 mm bore, 150 mm stroke, 20 mm window, S magnet, and any mount.
Plan for about 24 N of real work at 0.5 MPa, which is a safe 60% load of the theoretical 39.3 N figure. For vertical lifting, expect to move roughly 2 kg with a sane 2:1 margin. A plain cylinder does not hold position on air loss; the piston drifts and the bumper only decelerates near the stroke end, so add an external stop for fail-safe load holding.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 130–150 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 PBJ10X150-20S FAQ
At 0.5 MPa the push force is 39.3 N and the pull force is 33 N. At the 0.7 MPa maximum, push is 55 N and pull is 46.2 N. The adjustable window is 20 mm, giving an effective stroke range of 130 to 150 mm.
The rear M4x0.7 screw shortens only the retract end; the extend end is fixed. You must re-tighten the lock nut after setting to prevent vibration drift. The S suffix means a built-in piston magnet works with AirTAC 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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