Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75S 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 SAIJ80AX260-75S
The AirTAC SAIJ80X260-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 185-260 mm usable travel window, allowing you to dial back the nominal 260 mm stroke by up to 75 mm during commissioning. Delivering 2513 N pull force at 0.5 MPa, it handles robust actuation tasks. The extruded aluminum barrel includes sensor grooves on both sides, and the -S magnet integrates seamlessly with CMSE reed and DMSE electronic solid-state switches.
This model features a SUS420J2 stainless steel rod (code A) and PT tapered port threads for secure pneumatic connections. The 25 mm rod diameter and M20x1.5 rod thread provide high structural rigidity, meaning the piston assembly tolerates greater side loads than smaller bores. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without requiring external stops or cylinder swaps.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75S |
|---|---|
| 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 SAIJ80AX260-75S
| 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 SAIJ80AX260-75S Is Used
Variable End-Stop Tuning
Dial in the exact 185-260 mm travel distance during machine commissioning to accommodate different material thicknesses without adding external mechanical stops.
Product Changeover
Quickly reset the rear adjuster screw on packaging lines when switching to a new carton size, reducing downtime compared to replacing the entire cylinder.
Assembly Pressing
Leverage the 2513 N pull force at 0.5 MPa for pressing operations while using the 75 mm adjustment window to fine-tune the final press depth precisely.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75S the Right Cylinder?
Choose this 80 mm bore when an application requires more thrust than the 63 mm option (which provides 1402 N pull at 0.5 MPa) but does not need the bulk of a 100 mm unit. The adjustable stroke is ideal for machine setups requiring variable end-stops or frequent product-size changeovers, saving the downtime of physically swapping a fixed-stroke SAI cylinder. You can replace an ISO 15552 cylinder by matching the 80 mm bore, 260 mm stroke, 75 mm adjustment, PT port thread, and -S magnet.
Remember that the rear adjuster and the variable air cushions only decelerate the travel end; they do not hold a load without live air pressure. For applications requiring fail-safe load holding without continuous air, select an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead. Because the 260 mm stroke is substantial, always use an external guide to prevent rod binding under heavy side loads.
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 SAIJ80AX260-75S FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N pull force and 2268 N push force. It operates at speeds between 30 and 800 mm/s, and the rod is made of SUS420J2 stainless steel.
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective stroke from the 260 mm nominal length down to 185 mm. It only sets the travel end and does not lock the load without live air pressure.
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