Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 900mm 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
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-75S
The AirTAC SAIJ80X900-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa, utilizing an 80mm bore and a 900mm stroke. The integrated adjuster screw provides a usable travel window of 825 to 900mm, allowing you to dial back the retract position by up to 75mm during commissioning without adding external stops.
This unit includes a SUS304 stainless steel piston rod for superior corrosion resistance and uses PT tapered port threads. Equipped with a magnet, it supports AirTAC CMSE reed and DMSE solid-state sensors via the dual-side sensor grooves. The extruded aluminum barrel design maintains standard ISO 15552 mounting dimensions while offering a reduced SAIJ mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 900 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 SAIJ80BX900-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×900 | 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 SAIJ80BX900-75S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 825-900mm window during machine commissioning without swapping out the entire actuator.
Product Size Changeover
Quickly adjust the effective stroke by up to 75mm to accommodate different product lengths on a single production line.
Long-Stroke Assembly Press
Leverage the 2513N push force at 0.5 MPa across a 900mm travel distance for large-scale component placement and joining.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-75S the Right Cylinder?
Choose this 80mm bore adjustable cylinder when you need precise end-position tuning on a long 900mm stroke. If your application requires less force, stepping down to a 63mm bore yields 1559N at 0.5 MPa; if you need more power, the 100mm bore provides 3927N. The rear adjuster acts purely as a mechanical stop to set the travel end, not a lock. For dead-load holding without live air pressure, select the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 80mm bore, 900mm stroke, 75mm adjustment range, PT G3/8 ports, and the -S magnet requirement. Because the 900mm stroke is substantial, always use an external guide to prevent rod side-loading and premature wear, as the 25mm rod diameter and M20x1.5 thread can only handle limited lateral forces.
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 SAIJ80BX900-75S FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder generates 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw allows you to mechanically shorten the effective stroke from 900mm down to 825mm. This provides a 75mm tuning window for precise end-position setup, but it functions only as a travel stop and does not lock the load without continuous air pressure.
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