Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75S 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 SAIJ80BX90-75S
The AirTAC SAIJ80X90-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a broad usable travel window of 15 to 90 mm, letting you dial back the nominal 90 mm stroke by up to 75 mm during machine commissioning. This 80 mm bore generates 2513 N of push force at 0.5 MPa, fitting it for heavy positioning tasks.
Built with a SUS304 stainless steel rod (option B) and PT tapered ports, it resists corrosion while handling high side loads. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed and DMSE electronic solid-state switches.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75S |
|---|---|
| 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 SAIJ80BX90-75S
| 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 SAIJ80BX90-75S Is Used
Variable End-Stop Positioning
Dial the stroke back from 90 mm to 15 mm to hit changing end-stops without re-engineering the machine layout.
Product Size Changeover
Quickly adapt a production line to new package dimensions by turning the rear adjuster to shift the retraction point.
Commissioning Fine-Tuning
Trim the travel window during setup to perfect the timing and avoid mechanical crashes before final lock-down.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX90-75S the Right Cylinder?
Select this 80 mm bore over the 63 mm version (1559 N push at 0.5 MPa) when your application requires higher thrust, or step up further to the 100 mm bore (3927 N) for maximum load moving. The adjustable rear stopper allows precise end-position tuning without swapping cylinders or adding external stops. Remember the adjuster acts only as a travel stop; it does not hold the load without live air. For pneumatic load-holding, consider the SAIL or BSAI series.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 90 mm stroke, 75 mm adjustment, PT port thread, and the -S magnet. Because the 90 mm stroke is relatively short, standard side-loading concerns are minimized, but the 25 mm rod and M20x1.5 thread provide excellent rigidity if external guides are omitted.
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 SAIJ80BX90-75S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw lets you shorten the effective stroke by up to 75 mm. This creates a usable travel window of 15 to 90 mm, allowing you to set the exact end position without changing the cylinder.
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