Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX325-75 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke325 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 SAIJ80AX325-75
It features a SUS420J2 stainless steel rod and PT tapered ports. By turning the rear screw, you can trim the effective travel back by up to 75 mm, creating a precise 250-325 mm usable stroke window for exact end-position tuning.
Because the nominal 325 mm stroke is relatively long, the 25 mm rod and M20x1.5 thread provide necessary rigidity, though an external guide is recommended to manage side loads. This adjustable design eliminates the need to swap cylinders during product changeovers. The mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB and CA styles.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75 |
|---|---|
| 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 | 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 SAIJ80AX325-75
| 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 SAIJ80AX325-75 Is Used
Variable End-Stop Tuning
Dial in the exact retraction point within the 250-325 mm window during machine commissioning to accommodate different product lengths without changing hardware.
Product Changeover
Quickly adjust the stroke by up to 75 mm on a packaging line when switching to a new carton size, minimizing downtime and avoiding external stop modifications.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-75 the Right Cylinder?
The 75 mm adjustment range is specifically valuable for machine setups requiring variable end-stops, allowing operators to fine-tune the 250-325 mm travel window during commissioning without machining external stops. If your process demands load-holding without live air pressure, note that this rear adjuster acts only as a travel stop and not a lock; you would need an external rod lock or a SAIL pneumatic lock cylinder for those tasks.
For a direct ISO 15552 replacement match, ensure the 80 mm bore, 325 mm nominal stroke, 75 mm adjustment, PT port thread, and required mounting bracket are specified. As the 325 mm stroke exceeds 300 mm, incorporating an external guide rail is highly recommended to prevent excessive side-loading on the rod.
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 SAIJ80AX325-75 FAQ
The rear adjuster screw acts as a mechanical stop that shortens the effective travel from the 325 mm nominal stroke. You can trim the stroke by up to 75 mm, providing an adjustable operating window between 250 mm and 325 mm.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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