Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 75mm 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
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-30
The AirTAC SAIJ80X75-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 45-75 mm usable travel window from the 75 mm nominal stroke. Delivering 2513 N of push force at 0.5 MPa, it handles demanding actuation tasks. This configuration includes a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads.
The external stopper screw allows precise end-position tuning during commissioning without adding external stops. It is a travel stop, not a lock, so it cannot hold the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, and mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAIJ80BX75-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SAIJ80BX75-30 Is Used
Product Changeover
Dial in the 45-75 mm travel window to handle varying package sizes on a packaging line without mechanically swapping cylinders.
Machine Setup
Fine-tune the retract end-position during commissioning to perfect a pressing operation, avoiding the need for external stopper blocks.
Corrosive Environments
Leverage the SUS304 stainless steel rod for reliable actuation in washdown or mildly corrosive industrial settings.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX75-30 the Right Cylinder?
Select this 80 mm bore when an application requires higher force than the 63 mm bore (which provides 1559 N push at 0.5 MPa) but does not need the 3927 N output of a 100 mm cylinder. The 30 mm adjustment range is ideal for product size changeovers on a conveyor line, letting operators dial in the exact end-stop without swapping cylinders. For load-holding without live pressure, use an external rod lock or explore the SAIL or BSAI series.
To replace an ISO 15552 cylinder, match the 80 mm bore, 75 mm stroke, 30 mm adjustment, PT G3/8 ports, and the chosen mounting bracket. This unit ships without a magnet, so position sensing requires external proximity switches rather than groove-mounted CMSE or DMSE sensors.
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 SAIJ80BX75-30 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 acts as a travel stop, allowing you to shorten the effective stroke by up to 30 mm. This creates a 45-75 mm usable travel window for fine-tuning end positions, though it does not lock or hold the load without live air pressure.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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