Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-75 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 SAIJ80X260-75
The AirTAC SAIJ80X260-75 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N of push force at 0.5 MPa and features a generous 75mm adjustment range, creating a usable travel window between 185mm and 260mm. This allows precise end-position tuning during commissioning without swapping out the entire actuator.
The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. It uses a carbon steel piston rod with an M20x1.5 thread, paired with PT tapered port threads and a G3/8 air supply. The rear adjuster acts purely as a travel stop for deceleration alongside the standard air cushions, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-75 |
|---|---|
| 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 SAIJ80X260-75
| 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 SAIJ80X260-75 Is Used
Product Changeover
Dial in the 185-260mm travel window during packaging line format changes to accommodate different carton sizes without repositioning cylinder mounts.
End-Stop Calibration
Fine-tune the retract end position during machine commissioning using the rear screw, avoiding the need to fabricate and bolt on external mechanical stops.
Variable Positioning
Set precise lower-limit travel for assembly presses that need adjustable seating depth across different part batches within the 75mm adjustment band.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-75 the Right Cylinder?
Selecting this 80mm bore actuator makes sense when your machine setup requires variable end-stops or frequent product-size changeovers. If the 2513N push force at 0.5 MPa is excessive for your application, stepping down to a 63mm bore yields 1559N. Conversely, if you need more thrust, a 100mm bore provides 3927N. Because this model features a 260mm stroke, an external guide is recommended to prevent excessive side-loading on the M20x1.5 carbon steel rod.
The SAIJ configuration is chosen over a fixed-stroke SAI cylinder when you need on-the-fly mechanical fine-tuning of the retract position. For an exact ISO 15552 replacement, match the 80mm bore, 260mm nominal stroke, 75mm adjustment, G3/8 PT ports, and your desired mounting bracket from the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 set. Remember that for load-holding without live air, you must look to the SAIL or BSAI series, as this adjuster is not a locking mechanism.
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 SAIJ80X260-75 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf of push force.
The rear adjuster screw allows you to shorten the effective stroke by up to 75mm from the 260mm nominal length, giving a usable travel range of 185-260mm. It functions as a mechanical stop and does not lock the load in place without continuous air pressure.
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