Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X40-30S
The AirTAC Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X40-30S 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 40mm stroke with a 30mm fine-adjustable window — settable from 10 to 40mm, so you set the end position without changing hardware.
- BoreØ16 mm
- Nominal stroke40 mm
- Adjust window30 mm
- Effective range10–40 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 PBJ16X40-30S
The AirTAC PBJ16X40-30S is a double-acting, double-rod pen-size mini cylinder with a 30mm adjustable stroke window. A rear adjuster screw and lock nut shorten the retract end, giving an effective stroke range of 10-40mm. The extend end remains fixed.
The Ø16mm body features a SUS304 stainless rod and barrel, plus a fixed TPU bumper at each end. The built-in piston magnet works with reed or electronic switches. The thin Ø5mm rod handles coaxial thrust; add an external guide for off-axis loads. This unit does not hold position on air loss, so use an external stop for fail-safe holding.
Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X40-30S Technical Specifications
| Model | Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X40-30S |
|---|---|
| Series | PBJ JIS pen-size adjustable-stroke cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Nominal stroke | 40 mm |
| Adjustable window | 30 mm (10–40 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 PBJ16X40-30S
| PBJ | JIS pen-size adjustable-stroke mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×40 | Nominal stroke length in mm. |
| -30 | 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 PBJ16X40-30S Is Used
Changeover Fixtures
Dial in the exact retract position during product changeovers without machining new hard stops.
Trial Insertion Stops
Fine-tune insertion depth on test jigs to find the perfect engagement before locking the nut.
Variable Depth Pressing
Set precise end-of-stroke positions for light-duty pressing tasks across multiple part families.
Is the Airtac PBJ Adjustable Pen-Type Cylinder PBJ16X40-30S the Right Cylinder?
Stepping down to a Ø12 bore drops push force to 56.5N, while a larger bore offers more power. The M5x0.8 port is fixed for this 16mm size. Remember that only the retract position is settable via the rear screw, so your extend layout must be fixed.
Always re-tighten the lock nut after setting the 10-40mm range to prevent vibration drift. Confirm your ordering essentials: 16mm bore, 40mm nominal stroke, 30mm window, S magnet, and any LB or FA mount. The fixed TPU bumper only decelerates the last few mm, so meter-out the exhaust or add a shock absorber when cycling heavy tooling at mid speed.
Quick checklist
- ✓ Need to fine-tune the end position on site
- ✓ Retract end sits within 10–40 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 PBJ16X40-30S FAQ
The effective stroke range is 10-40mm.
The M5x0.8 rear screw shortens only the retract end, while the extend end is fixed. You set the position on the machine, then re-tighten the lock nut to prevent vibration drift. The built-in 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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