Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 220mm 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
- Stroke220 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-75S
The AirTAC SAIJ80X220-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 2513N of push force at 0.5 MPa. It features a carbon steel rod and a built-in magnet (-S) for position sensing. By integrating a rear stopper screw, this model allows you to fine-tune the effective travel down from its 220mm nominal stroke, creating a 145-220mm usable adjustment window without requiring external stops.
This adjustable capability is a major advantage during machine commissioning or product changeovers, letting you dial in the exact end position on the fly. The cylinder uses a PT tapered port and includes variable air cushions at both ends to decelerate the load smoothly. For position feedback, the integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state sensors mounted in the dual-side sensor grooves.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 220 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 SAIJ80X220-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×220 | 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 SAIJ80X220-75S Is Used
Machine Changeover
Dial in the 145-220mm travel window during product size changeovers to set new end positions without swapping cylinders.
Prototyping Setup
Fine-tune the rear stopper screw during commissioning to find the exact 80mm bore thrust position before finalizing the design.
Variable End Stops
Adjust the retract position on the fly for diverter gates that need to handle different package sizes on a single line.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X220-75S the Right Cylinder?
Choose this 80mm bore when an application requires substantial thrust—such as 2513N push or 2268N pull at 0.5 MPa—and a highly flexible end-of-stroke position. If your force requirements are lower, stepping down to a 63mm bore yields 1559N push force, whereas moving up to a 100mm bore provides 3927N. The 75mm adjustment range is particularly useful for prototyping or lines running multiple product sizes, as it replaces the need to physically swap out a fixed-stroke SAI cylinder. Remember that the rear adjuster functions purely as a travel stop and does not hold the load without live air; for true pneumatic locking, consider an AirTAC SAIL or BSAI cylinder.
Because the 220mm stroke exceeds the 300mm threshold, ensure adequate external guiding to prevent excessive side-loading on the 25mm carbon steel rod. This SAIJ model is dimensionally interchangeable per ISO 15552 and supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Operating speed ranges from 30-800 mm/s.
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 SAIJ80X220-75S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder generates 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 220mm nominal stroke by up to 75mm, providing a usable travel window of 145-220mm. It sets the end position but does not lock the load without continuous air pressure.
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