Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30S
The AirTAC SAIJ80X75-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 75mm stroke that can be dialed back by up to 30mm, creating a precise 45-75mm usable travel window for end-position tuning without adding external stops. In the 80mm bore class, it generates 2513N of push force and 2268N of pull force at 0.5 MPa.
This SKU is built with an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides, and the standard PT G3/8 porting matches the bore size. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAIJ80AX75-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SAIJ80AX75-30S Is Used
Machine Setup Changeover
Dial in the 45-75mm travel window during product size changes on a packaging line without physically swapping cylinders.
Variable End-Stop Tuning
Fine-tune the retract position at machine commissioning to perfect end-of-stroke positioning for delicate operations.
Conveyor Diverter Setup
Adjust the actuation distance on the fly to accommodate different package widths moving through a sorting station.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30S the Right Cylinder?
Choose this 80mm bore cylinder when your application requires 2513N push force at 0.5 MPa, stepping up from a 63mm bore that provides 1559N. The 30mm adjustment range is ideal for product changeovers on a line, allowing you to fine-tune the retract end-position at commissioning rather than swapping a fixed-stroke SAI cylinder. For load-holding without live pressure, select a SAIL or BSAI lock variant instead, as the SAIJ adjuster is a stop, not a brake.
When replacing an ISO 15552 cylinder, match the 80mm bore, 75mm stroke, 30mm adjustment, PT G3/8 port, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. The 25mm rod and M20x1.5 thread handle high side loads, though long unsupported strokes still require an external guide.
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 SAIJ80AX75-30S FAQ
At 0.5 MPa, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw lets you shorten the 75mm nominal stroke by up to 30mm, creating a 45-75mm usable travel window. The adjuster acts as a travel stop and does not lock or hold the load without live air pressure.
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