Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-30 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 SAIJ80X325-30
The AirTAC SAIJ80X325-30 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers 2513 N of push force and 2268 N of pull force at 0.5 MPa, utilizing a G3/8 port and a 25 mm carbon steel rod. By turning the rear stopper screw, you can fine-tune the effective travel window down from a 325 mm nominal stroke to a minimum of 295 mm, providing a 30 mm adjustment range to dial in exact end positions without adding external stops.
This extruded aluminum profile cylinder includes variable air cushions at both ends to decelerate the load smoothly. Because the 325 mm stroke is relatively long for the 80 mm bore, an external guide should support the rod to prevent excessive side-loading. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure; for position holding, consider an external pilot-operated check valve or the SAIL lock series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-30 |
|---|---|
| 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 SAIJ80X325-30
| 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 SAIJ80X325-30 Is Used
Machine Changeover
Dial in the 295-325 mm travel window during product size transitions without swapping out the entire cylinder.
Variable End Stops
Set precise retract positions on a conveyor sorting arm to accommodate varying package lengths.
Assembly Pressing
Apply 2513 N of push force at 0.5 MPa while fine-tuning the pressing depth at the commissioning stage.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X325-30 the Right Cylinder?
Select this 80 mm bore model when your application requires substantial thrust, such as 2513 N at 0.5 MPa, alongside precise end-position tuning. If you need less force, stepping down to a 63 mm bore yields 1559 N, whereas stepping up to a 100 mm bore provides 3927 N. The adjustable stroke is chosen over a fixed SAI cylinder when machine setups require variable end-stops or product-size changeovers.
To replace an ISO 15552 cylinder of the same dimensions, match the 80 mm bore, 325 mm stroke, 30 mm adjustment, G3/8 PT port, and your required mounting set. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR. Since this model lacks a magnet (-S), it cannot host CMSE or DMSE 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 SAIJ80X325-30 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 0.7 MPa, the push force increases to 3518 N.
A rear stopper screw lets you shorten the 325 mm nominal stroke by up to 30 mm, creating a usable travel window of 295 to 325 mm. The adjuster is a mechanical stop for end-position tuning, not a lock, and the cylinder will not hold its load without live air pressure.
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