Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-40S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-40S 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 45mm stroke with a 40mm fine-adjustable window — settable from 5 to 45mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke45 mm
- Adjust window40 mm
- Effective range5–45 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 PBJ16X45-40S
The AirTAC PBJ16X45-40S is a double-acting, double-rod pen-size mini cylinder with a 40mm adjustable window. A rear adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 5-45mm. You tune the exact length on the machine without ordering new hardware. The extend end remains fixed.
The slim SUS304 stainless body uses an M5x0.8 air port and a fixed TPU bumper at each end. Because the rod is only Ø5mm, use an external guide for any off-axis loads to prevent bending. The built-in magnet works with reed or electronic switches.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-40S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-40S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 45 mm |
| Adjustable window | 40 mm (5–45 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 PBJ16X45-40S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×45 | 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 PBJ16X45-40S Is Used
Variable-Depth Pressing
Dial in precise insertion depths for different parts on one fixture using the 5-45mm retract adjustment.
Changeover Fixtures
Quickly reposition the end-of-stroke stop during product changeovers without disassembling the jig.
Trial Stop Positioning
Fine-tune test probe contact points on the machine while keeping the extend stroke fixed.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X45-40S the Right Cylinder?
Remember that only the retract position is adjustable. Set your distance, then firmly tighten the lock nut to prevent vibration drift. Confirm your ordering essentials: 16mm bore, 45mm nominal stroke, 40mm window, S magnet, and any LB or FA mount.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 5–45 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 PBJ16X45-40S FAQ
The effective stroke range is 5-45mm. The air port is M5x0.8.
A rear M5x0.8 screw shortens the retract end while the extend end stays fixed. You must re-tighten the lock nut after setting to prevent vibration drift. The piston does not hold position on air loss; it drifts, so add an external rod lock 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 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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