Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-40
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX150-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 150mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke150 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- 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 SAIJ80 Adjustable Cylinder SAIJ80BX150-40
The AirTAC SAIJ80X150-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the nominal 150 mm travel back by up to 40 mm, creating a 110-150 mm usable window for precise commissioning. This makes it well-suited for medium-to-heavy actuation tasks requiring exact end-position tuning.
This variant is configured with a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads (G3/8). The extruded aluminum barrel includes sensor grooves on both sides, though this specific SKU omits the internal magnet, so external solid-state DMSE or reed CMSE switches cannot be used. The rear adjuster acts strictly as a mechanical stop to set the retraction end, meaning it will not hold a load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 150 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×150 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-40 Is Used
Changeover Calibration
Dial in the 110-150 mm travel window during machine setup to accommodate new product sizes without disassembling the actuator assembly.
Variable End Stops
Fine-tune the retraction end-position on automated lines to adapt to varying material thicknesses on the fly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-40 the Right Cylinder?
The 40 mm adjustment range is ideal for applications where you need to dial in the exact end-stop during product changeovers without physically swapping the cylinder or adding external stopper blocks. For operations requiring true load-holding during air loss, this standard SAIJ is insufficient; you should pivot to the SAIL pneumatic lock or BSAI clamp-lock series instead.
Because the stroke is 150 mm, side-load risks are moderate, but you should still ensure proper guiding for any heavy lateral loads. When matching an ISO 15552 replacement, verify the 80 mm bore, 150 mm stroke, 40 mm adjuster, PT G3/8 port, SUS304 rod, and the absence of a magnet. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting the FB, CA, CB, and CR brackets.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX150-40 FAQ
At the maximum 1.0 MPa pressure, the push force reaches 4523 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 150 mm nominal stroke by up to 40 mm, providing an effective travel window of 110 to 150 mm. It only sets the end position and does not lock or hold the load without continuous air pressure.
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