Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-20 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 SAIJ80X325-20
The AirTAC SAIJ80X325-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end position without adding external stops. With a nominal 325 mm stroke and a 20 mm adjustment range, it delivers a usable travel window of 305 to 325 mm to perfect your machine setup. It features a robust 25 mm carbon steel rod and a PT tapered G3/8 port.
This 80 mm bore actuator generates 2513 N of push force and 2268 N of pull force at 0.5 MPa, making it suitable for heavy-duty positioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Because the stroke extends past 300 mm, the 25 mm rod diameter provides excellent rigidity, though an external guide is still recommended for unsupported loads to prevent side-loading wear.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-20 |
|---|---|
| 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 SAIJ80X325-20
| 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 SAIJ80X325-20 Is Used
Product Size Changeovers
Dial in the 305-325 mm travel window during format conversions on packaging lines without physically swapping out the entire actuator.
End-Position Tuning
Fine-tune the retract stroke at machine commissioning to avoid mechanical hard stops, using the rear screw to set the exact 80 mm bore positioning.
Heavy Material Handling
Leverage the 2513 N push force to move heavy pallets or fixtures, relying on the 25 mm carbon steel rod for demanding industrial environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-20 the Right Cylinder?
Step down to a 63 mm bore if your application only requires 1559 N of push force at 0.5 MPa, or step up to a 100 mm bore for 3927 N if this 80 mm class lacks the necessary thrust. Choose this adjustable SAIJ model over a fixed-stroke SAI when you need on-the-fly end-position tuning during product changeovers. To match your existing setup, specify the 325 mm stroke, 20 mm adjustment, G3/8 PT port, and the required mounting hardware from the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 sets.
Keep in mind the rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure. For dead-load holding, integrate an external rod lock or select an AirTAC SAIL or BSAI cylinder. If you need position feedback, adding the -S magnet option allows the use of AirTAC CMSE reed or DMSE electronic solid-state sensors.
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 SAIJ80X325-20 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the nominal 325 mm down to 305 mm. It allows precise end-position tuning during setup but does not lock the load without continuous air pressure.
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