Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30 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 SAIJ80AX75-30
The AirTAC SAIJ80X75-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 45-75 mm usable travel window. Delivering 2513 N of push force at 0.5 MPa, it handles robust actuation while allowing precise end-position tuning during commissioning without external stops. This configuration uses a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and PT tapered port threads.
The 25 mm rod and M20x1.5 thread provide excellent side-load capability, while the extruded aluminum barrel incorporates sensor grooves on both sides. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30 |
|---|---|
| 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 SAIJ80AX75-30
| 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 SAIJ80AX75-30 Is Used
Machine Changeover
Dial in the 45-75 mm travel window during product size transitions without physically replacing the cylinder or adding external shims.
End-Stop Tuning
Fine-tune the retract position at commissioning to achieve precise mechanical alignment, leveraging the 25 mm rod for rigid stopping.
Robust Actuation
Utilize the 2513 N push force at 0.5 MPa for heavy clamping or pressing tasks where the exact end position varies by up to 30 mm.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX75-30 the Right Cylinder?
Choose this 80 mm bore when an application requires higher thrust than the 50 mm bore (982 N push at 0.5 MPa) but less than the 100 mm bore (3927 N). The 30 mm adjustment range is ideal for product-size changeovers on a line, letting operators dial in the exact 45-75 mm stroke on the fly instead of swapping cylinders or machining fixed stops. Because the stroke is under 300 mm, external guide requirements are minimal compared to longer strokes.
For an exact ISO 15552 replacement, match the 80 mm bore, 75 mm stroke, PT port thread, SUS420J2 rod, and the chosen mounting hardware. Note that because no magnet is specified, position sensing via CMSE or DMSE switches is not supported on this SKU. If true load-holding without live air is required, consider the SAIL or BSAI series instead of relying on the adjuster.
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 SAIJ80AX75-30 FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm, creating a usable travel window of 45 to 75 mm. It functions as a mechanical stop to fine-tune the end position and does not lock the load without continuous air pressure.
At 0.5 MPa operating pressure, the SAIJ80X75-30 provides 2513 N of push force and 2268 N of pull force. At 0.7 MPa, the push force increases to 3518 N.
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