Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 325mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke325 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75S
The AirTAC SAIJ80X325-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. Its 325mm nominal stroke paired with a 75mm adjustment screw creates a usable travel window of 250-325mm. This allows you to fine-tune the retract end-position at commissioning without swapping out the cylinder or adding external stops.
This SKU features a SUS420J2 stainless steel rod for corrosion resistance and includes a magnet for position sensing. It works seamlessly with AirTAC CMSE reed and DMSE solid-state switches mounted into the dual-side sensor grooves. The G3/8 PT tapered ports and 25mm rod diameter provide a robust interface, though the 325mm stroke length means an external guide is recommended to manage side loads.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 325 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×325 | 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 SAIJ80AX325-75S Is Used
Machine Changeover
Dial in the retract position from 250 to 325mm during product size transitions without changing hardware.
End-Stop Tuning
Fine-tune the final resting position of tooling at commissioning to absorb mechanical tolerances.
Variable Positioning
Set custom travel limits on automated lines requiring flexible end-stop locations.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75S the Right Cylinder?
Choose this 80mm bore when a 50mm bore (982N push at 0.5 MPa) lacks the power to move your load, but you want to avoid the heavier footprint of a 100mm option. The adjustable stroke is ideal for product changeovers on a line, letting you dial in a new end-stop on the fly. Remember that the rear adjuster functions strictly as a travel stop, not a lock; the SAIJ will not hold a load without live air pressure. For load-holding safety, consider the SAIL or BSAI series. To match this cylinder for an ISO 15552 replacement, verify the 80mm bore, 325mm stroke, 75mm adjustment, G3/8 PT ports, SUS420J2 rod, and the -S magnet. Note that SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR.
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 SAIJ80AX325-75S FAQ
The rear adjuster acts as a mechanical stopper that lets you trim the effective stroke back by up to 75mm. This creates a usable travel window of 250-325mm, allowing precise end-position tuning without altering the cylinder mounting.
At 0.5 MPa operating pressure, it provides 2513N of push thrust and 2268N of pull thrust. At the maximum 1.0 MPa pressure, the push force reaches 513 kgf.
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