Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-30 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 SAIJ80AX325-30
The AirTAC SAIJ80X325-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window from 295 to 325 mm during commissioning. It delivers 2513 N of push force at 0.5 MPa and 3518 N at 0.7 MPa, making it well-suited for medium to heavy-duty positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This unit features a SUS420J2 stainless steel rod for improved corrosion resistance and uses PT tapered port threads for a tight pneumatic seal. The rear adjustment screw acts purely as a mechanical stop to set the retract end-position; it does not lock or hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-30 |
|---|---|
| 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 SAIJ80AX325-30
| 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 SAIJ80AX325-30 Is Used
Machine Changeover
Dial in the 295-325 mm travel window during product size transitions to reposition stops quickly without disassembling the actuator.
End-Position Tuning
Fine-tune the retract distance at commissioning using the rear screw, absorbing mechanical tolerances without adding external stopper blocks.
Assembly Line Indexing
Drive heavy conveyors or lifts with up to 3518 N of force at 0.7 MPa while retaining the flexibility to shift the end-stop for different pallet sizes.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX325-30 the Right Cylinder?
Select this adjustable model over a fixed-stroke SAI when your machine setup requires variable end-stops or precise product-changeover tuning without swapping the entire cylinder. To match this ISO 15552 replacement, verify the 80 mm bore, 325 mm nominal stroke, 30 mm adjustment range, PT G3/8 port, and standard mounting interface. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR styles.
Because the 325 mm stroke is relatively long, the 25 mm rod diameter should still be paired with an external guide to prevent excessive side-loading on the piston. Operating speed ranges from 30-800 mm/s, supported by variable air cushions at both ends to decelerate the moving mass smoothly.
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 SAIJ80AX325-30 FAQ
At 0.5 MPa it provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa the push force increases to 3518 N, with a maximum rated push force of 4523 N at 0.9 MPa.
The rear adjuster screw lets you mechanically shorten the 325 mm nominal stroke by up to 30 mm, creating a usable 295-325 mm travel window. It functions as a physical stop to set the end-position and does not lock the load without live air pressure.
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