Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 375mm 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
- Stroke375 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40
The AirTAC SAIJ80X375-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 40 mm. This creates a precise 335-375 mm usable window, letting you dial in the retract end-position during commissioning without swapping out the entire unit. It delivers 2513 N of push force at 0.5 MPa and utilizes a G3/8 port for robust airflow.
This variant is built with an SUS420J2 stainless steel rod for superior corrosion resistance and ships without a magnet. The extruded aluminum barrel includes sensor grooves on both sides should you later need position feedback. Because the 375 mm stroke is relatively long, the 25 mm rod diameter helps manage deflection, though an external guide remains essential for heavy lateral loads.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 375 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 SAIJ80AX375-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×375 | 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 SAIJ80AX375-40 Is Used
Machine Changeover
Quickly fine-tune the 335-375 mm retract distance when swapping product sizes on a packaging line, avoiding the need to physically replace cylinders or bolt on external stoppers.
End-Position Tuning
Dial in the exact backstop position during commissioning to compensate for mechanical tolerances, ensuring precise alignment before final lockdown.
Heavy Material Handling
Leverage the 2513 N push force to move dense workpieces while relying on the adjuster screw to safely vary the end-of-stroke cushioning point.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-40 the Right Cylinder?
Select this 80 mm bore when an application requires substantial thrust—such as 2513 N push or 2268 N pull at 0.5 MPa—but demands finer retract control than a fixed SAI cylinder offers. If your process needs less force, stepping down to a 63 mm bore yields 1559 N push; stepping up to a 100 mm bore provides 3927 N. The rear screw on this model acts purely as a mechanical stop to set deceleration, meaning it will not hold the load safely without live air pressure. For true load-holding, consider an external rod lock or the AirTAC SAIL series.
To match this ISO 15552 interchangeable cylinder exactly, confirm the 80 mm bore, 375 mm nominal stroke, 40 mm adjustment range, PT tapered port threads, and the absence of a magnet. Mounting options are restricted to the standard SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2. Given the 375 mm stroke, ensure your mounting configuration supports the rod adequately to prevent excessive side-loading and premature seal wear.
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 SAIJ80AX375-40 FAQ
At an operating pressure of 0.5 MPa, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. At the maximum rated pressure of 0.9 MPa, the push force increases to 4523 N.
The rear adjuster screw allows you to shorten the nominal 375 mm stroke by up to 40 mm, providing an effective travel window of 335 to 375 mm. This stopper only limits the travel end and does not lock the load without continuous air pressure.
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