Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50 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 SAIJ80AX375-50
The AirTAC SAIJ80X375-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 325 to 375 mm, allowing you to dial back the nominal 375 mm stroke by up to 50 mm during commissioning. This bore delivers 4523 N of push force at 0.9 MPa, making it suitable for heavier actuation tasks.
This variant is equipped with a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. The rear adjuster acts strictly as a travel stop to fine-tune the end position without needing external stops.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50 |
|---|---|
| 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 SAIJ80AX375-50
| 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 SAIJ80AX375-50 Is Used
Machine Changeover
Dial in the 325-375 mm travel window during product size transitions without swapping the cylinder or adding external stopper blocks.
Variable End Stops
Fine-tune the retraction end position on the fly to accommodate varying package sizes or pallet depths on a packaging line.
Heavy Assembly Pressing
Leverage the 4523 N push force at 0.9 MPa for pressing components while using the rear screw to set precise final positions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-50 the Right Cylinder?
Choose this 80 mm bore when your application requires substantial force, such as the 4523 N push at 0.9 MPa, but you need flexibility in the end-of-travel position. The 50 mm adjustment window is ideal for product changeovers on a line. If you need less force, stepping down to a 63 mm bore yields 2805 N at 0.9 MPa. Because the 375 mm stroke is relatively long, an external guide is recommended to prevent excessive side-loading on the 25 mm rod.
The rear adjuster and air cushions decelerate the load but do not hold it without live air. For fail-safe load holding, consider the SAIL or BSAI series. This cylinder uses PT ports and supports the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR. It is dimensionally interchangeable per ISO 15552.
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 SAIJ80AX375-50 FAQ
The rear adjuster screw lets you shorten the effective travel from the 375 mm nominal stroke by up to 50 mm, creating a 325-375 mm usable window. It functions as a mechanical stop to set the end position and does not lock the load without live air pressure.
At 0.9 MPa operating pressure, the SAIJ80X375-50 provides 4523 N of push force and 4061 N of pull force. The maximum thrust is 513 kgf at 1.0 MPa.
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