Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30 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 SAIJ80AX750-30
The AirTAC SAIJ80X750-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5MPa. It features a SUS420J2 stainless steel rod and PT tapered port threads. The integrated rear stopper allows you to fine-tune the effective travel window down from a 750mm nominal stroke to a 720mm minimum, providing a 30mm adjustment range without swapping hardware.
This adjustable capability is ideal for dialing in exact end positions during machine commissioning or product changeovers. The extruded aluminum profile includes sensor grooves on both sides for flexible switch mounting. Because the rear mechanism acts only as a travel stop and not a lock, the cylinder requires continuous live air to maintain its position under load.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30 |
|---|---|
| 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 SAIJ80AX750-30
| 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 SAIJ80AX750-30 Is Used
Machine Changeover
Quickly dial in the 720-750mm travel window during product size transitions without physically replacing the cylinder or adding external stopper blocks.
Variable End Stops
Provides a fine-tuned retract position for diverting items of varying sizes on a conveyor line, ensuring precise placement every time.
Commissioning Calibration
Allows engineers to trim the final 30mm of stroke during initial machine setup to perfectly sync tooling contact points without mechanical shimming.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-30 the Right Cylinder?
Selecting this 80mm bore model provides a robust 2513N push and 2268N pull at 0.5MPa, offering a middle ground between the 63mm bore (1559N push) and the 100mm bore (3927N push). The 30mm adjustment window is specifically useful when you need a variable end-stop for product size changes on a line, rather than casting a fixed length like the standard SAI. When specifying a replacement, verify the 750mm stroke, PT port threads, SUS420J2 rod material, and the ISO 15552 mounting interface.
With a 750mm stroke, the 25mm rod diameter and M20x1.5 rod thread provide rigidity, but an external guide is strongly recommended to prevent excessive side-loading on the piston. Mounting choices are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. For applications requiring true load-holding without live air pressure, 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 SAIJ80AX750-30 FAQ
At 0.5MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 750mm nominal stroke down to 720mm. It only sets the end position and does not lock the load without live air.
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