Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 750mm 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
- Stroke750 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30S
The AirTAC SAIJ80X750-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 720 to 750 mm. Built with an extruded aluminum barrel, it delivers a robust 3518 N push force at 0.7 MPa. This version includes a magnet for position sensing and uses a SUS420J2 stainless steel rod for improved corrosion resistance.
The integrated rear stopper allows precise end-position tuning during commissioning without adding external stops. It features PT tapered port threads (G3/8) and operates at speeds of 30-800 mm/s. The adjuster acts purely as a travel stop and does not hold the load without continuous air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 750 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 SAIJ80AX750-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×750 | 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 SAIJ80AX750-30S Is Used
Product Changeover
Dial in the 720-750 mm travel window during format size changes on a packaging line without physically swapping the actuator.
Machine Setup
Fine-tune the exact end-of-stroke position during initial commissioning to prevent mechanical crashes and optimize cycle timing.
Variable End Stops
Adjust the retract position dynamically for sorting diverter gates that must handle varying package lengths on a single conveyor.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30S the Right Cylinder?
Choose this 80 mm bore when an application requires higher thrust than a 63 mm cylinder (which provides 2182 N push at 0.7 MPa) but without the bulk of a 100 mm unit. The adjustable 720-750 mm window is ideal for fine-tuning machine setups or accommodating product changeovers, offering flexibility a fixed-stroke SAI cannot match. For exact ISO 15552 replacement matching, verify the 80 mm bore, 750 mm stroke, 30 mm adjustment, PT G3/8 port, and the -S magnet requirement.
Because the 750 mm stroke is long and unsupported, an external guide is strongly recommended to prevent excessive side-loading on the 25 mm rod. If your process demands true load-holding without live air pressure, this cylinder will not suffice; you should instead explore an AirTAC SAIL locking cylinder or an external rod lock.
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 SAIJ80AX750-30S FAQ
At 0.7 MPa operating pressure, this 80 mm bore cylinder provides a push force of 3518 N and a pull force of 2268 N. At the maximum 1.0 MPa pressure, it achieves a push force of 4523 N.
The rear adjuster allows you to shorten the effective travel by up to 30 mm, creating a 720 to 750 mm usable window. It acts as a physical stop to fine-tune the end position and does not lock the load when air pressure is removed.
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