Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 700mm 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
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75
The AirTAC SAIJ80X700-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 625-700 mm usable travel window, allowing you to dial back the 700 mm nominal stroke by up to 75 mm during machine commissioning without swapping out the unit. 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 is built with a SUS420J2 stainless steel rod for enhanced durability against moisture and minor corrosion. It uses PT tapered port threads (G3/8) and excludes a magnet, meaning it is not set up for CMSE or DMSE position sensing out of the box. The extruded aluminum barrel retains standard sensor grooves on both sides should you later require electronic tracking.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 700 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 SAIJ80AX700-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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 SAIJ80AX700-75 Is Used
Product Changeover Diverter
Quickly alter the travel end-stop by up to 75 mm to accommodate different package lengths moving down a packaging conveyor without changing the cylinder.
Long-Stroke Press Tuning
Fine-tune the 700 mm retraction point during machine setup to perfectly time the pressing action against varying material thicknesses.
Adjustable Forming Stop
Set precise rearward positioning for large metal forming operations, relying on the 2513 N push force to move heavy tooling securely.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX700-75 the Right Cylinder?
Select this 80 mm bore when an application requires substantial thrust—stepping down to a 63 mm bore drops your 0.5 MPa push force to 1559 N, whereas moving up to a 100 mm bore increases it to 3927 N. The 75 mm rear adjuster is ideal for product-size changeovers on a packaging line, letting you set a new end-stop quickly instead of adding external physical stops.
Because the 700 mm stroke is quite long, the 25 mm rod diameter and M20x1.5 rod thread will still experience leverage forces; always use an external guide to prevent side-load damage. Remember that the rear adjuster acts only as a travel stop and the air cushions only decelerate the end of travel—neither will hold the load if air pressure drops. For true fail-safe load holding without live air, consider an AirTAC SAIL (air-released lock) or BSAI (clamp-lock) cylinder. This model is dimensionally interchangeable per ISO 15552 and supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80AX700-75 FAQ
The rear adjuster screw lets you shorten the effective travel from the nominal 700 mm down to 625 mm, creating a 75 mm tuning window. It acts as a mechanical stop to set the retract end-position precisely during commissioning without needing external stops.
At 0.5 MPa operating pressure, the SAIJ80X700-75 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.
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