Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30S 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 SAIJ80AX375-30S
The AirTAC SAIJ80X375-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 345-375 mm, allowing you to dial back the 375 mm nominal stroke by up to 30 mm during commissioning without adding external stops. In the 80 mm bore class, it generates 2513 N of push force and 2268 N of pull force at 0.5 MPa.
This variant uses a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and includes a magnet for position sensing. The extruded aluminum barrel features sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE solid-state electronic switches. It operates at speeds of 30-800 mm/s and uses PT tapered G3/8 ports.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30S |
|---|---|
| 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 SAIJ80AX375-30S
| 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 SAIJ80AX375-30S Is Used
Machine Changeover
Dial in the exact 345-375 mm end position during product size transitions without swapping out the entire cylinder.
End-Position Tuning
Fine-tune the retract stop during commissioning to perfect process timing and avoid mechanical collisions.
Variable Stroke Stops
Set precise product ejection distances on moving lines by adjusting the rear stopper to exact requirements.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX375-30S the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI when your machine setup requires fine end-position tuning to accommodate product changeovers. The rear adjuster acts purely as a mechanical travel stop to set deceleration endpoints; it does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
Because the 375 mm stroke is relatively long, the 25 mm rod diameter and M20x1.5 rod thread provide robust support, but an external guide is still recommended to prevent excessive side-loading. This SAIJ model is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
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 SAIJ80AX375-30S FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. It can reach a maximum push force of 4523 N at 0.9 MPa.
The rear adjuster screw lets you shorten the effective travel from the 375 mm nominal stroke down to 345 mm. It functions as a travel stop to set the end position, not as a lock to hold the load without air pressure.
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