Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 90mm 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
- Stroke90 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75
The AirTAC SAIJ80X90-75 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 90 mm travel that can be dialed back by up to 75 mm, yielding a usable stroke window of 15 to 90 mm for precise end-position tuning during commissioning. Delivering 4523 N of push force at 0.9 MPa, it handles heavy actuation tasks with ease.
This variant is configured with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE or DMSE switches. The rear adjuster acts purely as a mechanical stop to set deceleration and travel limits, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 90 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 SAIJ80BX90-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×90 | 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 SAIJ80BX90-75 Is Used
Product Changeover
Dial the stroke back from 90 mm to 15 mm instantly on the production line to handle varying package sizes without replacing the actuator.
End-Stop Calibration
Fine-tune the retract end position during machine commissioning using the rear stopper, avoiding the need for external shims or spacers.
Heavy Forming Press
Leverage the 4523 N push force at 0.9 MPa for stamping or pressing operations, adjusting the travel limit to match material thickness.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75 the Right Cylinder?
Choose this 80 mm bore when your application requires substantial thrust, such as the 4523 N push force at 0.9 MPa, but demands a highly variable end-stop to accommodate frequent product changeovers. If your force requirements are lower, stepping down to a 63 mm bore yields 2805 N at 0.9 MPa, while moving up to a 100 mm bore provides 7068 N. The 75 mm adjustment range on this 90 mm nominal stroke is ideal for dialing in exact positioning without swapping hardware.
For an exact ISO 15552 replacement match, ensure you specify the 80 mm bore, 90 mm stroke, 75 mm adjustment, PT port threads, and SUS304 rod material. Mounting options include the SAIJ subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 90 mm stroke is relatively short, side-load stress on the 25 mm rod is minimal, but always ensure external guidance for heavy loads. If you need true load holding without air pressure, consider the AirTAC SAIL or BSAI series instead.
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 SAIJ80BX90-75 FAQ
At an operating pressure of 0.9 MPa, this 80 mm bore cylinder generates a push force of 4523 N and a pull force of 2268 N. The maximum push force is 513 kgf at 1.0 MPa.
The rear mechanical stopper allows you to shorten the 90 mm nominal stroke by up to 75 mm, providing an adjustable travel window between 15 mm and 90 mm. It functions as a travel stop and does not lock the load without live air pressure.
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