Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50 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 SAIJ80AX260-50
The AirTAC SAIJ80X260-50 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 210 to 260 mm usable travel window, allowing you to dial in the exact end position during commissioning without adding external stops. Operating at 0.5 MPa, it delivers 2513 N of pull force and 3518 N at 0.7 MPa, making it suitable for heavy positioning tasks.
This unit features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered port threads. It includes variable air cushions at both ends to manage impact deceleration. The extruded aluminum barrel offers sensor grooves on both sides for CMSE reed or DMSE solid-state switches, though no magnet is installed on this specific configuration.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50 |
|---|---|
| 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 SAIJ80AX260-50
| 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 SAIJ80AX260-50 Is Used
Machine Changeover
Dial in the 210-260 mm travel window during product size transitions without physically swapping the cylinder or repositioning hard stops.
Variable End Stops
Adjust the retract position on the fly to handle varying package lengths on a packaging conveyor line.
Assembly Calibration
Fine-tune the pressing position of heavy components during initial machine commissioning to achieve perfect alignment.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-50 the Right Cylinder?
Choose this 80 mm bore when a 50 mm bore (982 N push at 0.5 MPa) is insufficient and a 100 mm bore (3927 N push) is oversized. The 50 mm adjustment range is ideal for product-size changeovers on a packaging line. For load-holding without live air pressure, select a SAIL or BSAI cylinder instead, as the rear adjuster here is a travel stop, not a lock. When replacing an ISO 15552 cylinder, match the 260 mm stroke, 50 mm adjuster, G3/8 port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 260 mm stroke is moderately long, use an external guide to prevent rod side-load wear.
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 SAIJ80AX260-50 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 50 mm, providing a usable travel window of 210 to 260 mm. It acts as a physical stop to set the end position, not a lock.
At 0.5 MPa, it provides 2513 N pull force and 2513 N push force. At 0.7 MPa, the push force increases to 3518 N.
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Covers non-human-caused product damage.
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