Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 260mm 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
- Stroke260 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50S
The AirTAC SAIJ80X260-50-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N push force at 0.5MPa (4523N at 0.9MPa) and features a 50mm adjustment range, creating a usable travel window between 210mm and 260mm. This allows precise end-position tuning during commissioning without swapping the cylinder or adding external stops. The rear screw acts purely as a travel stop, not a lock, meaning it cannot hold a load without live air pressure.
This SKU is built with an SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for position sensing. It is compatible with AirTAC CMSE reed and DMSE electronic solid-state switches housed in the dual-side sensor grooves of the extruded aluminum barrel. The PT tapered port is G3/8, and the mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 260 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 SAIJ80AX260-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×260 | 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 SAIJ80AX260-50S Is Used
Product Changeover
Dial in the 210-260mm retract distance during format changes on a packaging line, using the rear adjuster to set new end positions without changing hardware.
Machine Setup
Fine-tune the end-of-stroke position during commissioning to prevent crashes, relying on the 50mm trim window to perfect the tooling clearance.
Variable End Stops
Provide flexible positioning in automated assembly cells where multiple parts are processed, adjusting the stroke by up to 50mm to accommodate different workpiece depths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50S the Right Cylinder?
Choose this 80mm bore when an application demands higher thrust than a 63mm cylinder (which provides 1559N push at 0.5MPa), but without the bulk of a 100mm unit. The adjustable 210-260mm window is ideal for product-size changeovers on a line, letting operators dial in the exact retract distance on the fly instead of machining hard stops. For load-holding without continuous air pressure, this cylinder is insufficient; you must integrate an external rod lock or specify a SAIL or BSAI variant.
Because the 260mm stroke is substantial, the 25mm rod and M20x1.5 thread handle significant side loads, but an external guide is still recommended for heavy off-center loads to prevent premature seal wear. To match this ISO 15552 dimensionally interchangeable cylinder exactly, specify the 80mm bore, 260mm nominal stroke, 50mm adjustment, PT G3/8 port, SUS420J2 rod, and the -S magnet.
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 SAIJ80AX260-50S FAQ
At 0.5MPa it provides 2513N push and 2268N pull force. At 0.9MPa, the push force increases to 4523N, with a maximum rated force of 513kgf at 1.0MPa.
The rear adjuster screw allows you to shorten the effective stroke by up to 50mm, creating a usable travel window of 210-260mm from the 260mm nominal stroke. It functions as a mechanical stop and does not lock the load without air pressure.
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