Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 175mm 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
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-75
The AirTAC SAIJ80X175-75 is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa and provides a wide usable travel window of 100 to 175 mm. This 75 mm adjustment range allows operators to dial back the nominal stroke significantly, which is ideal for optimizing varied product sizes on the same line without physically swapping out the actuator.
Built with a carbon steel rod and M20x1.5 thread, this 80 mm bore model handles side loads well, though external guidance is recommended for long unsupported travels. The extruded aluminum barrel includes sensor grooves on both sides, and the rear stopper functions purely as a travel end deceleration mechanism. It is not a locking device, meaning the cylinder cannot hold a load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 175 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 SAIJ80X175-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SAIJ80X175-75 Is Used
Machine Changeover
Dial in the exact 100 to 175 mm end-stop during product size transitions on a packaging line without adding external hard stops.
Press Fit Tuning
Fine-tune the precise engagement depth of a 2513N press operation at commissioning by adjusting the rear screw rather than repositioning the cylinder.
Variable End Stops
Adapt the travel window on the fly for automated assembly equipment that processes multiple part lengths on the same fixture.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-75 the Right Cylinder?
Choose this 80 mm bore adjustable-stroke actuator when your application requires a 2513N push force at 0.5 MPa and frequent end-position recalibration. If your process demands less force, the 63 mm neighbor provides 1559N; if you need more power, stepping up to the 100 mm bore yields 3927N. The SAIJ80X175-75 is selected over a fixed SAI cylinder specifically to allow up to 75 mm of stroke trimming at commissioning or during machine changeover.
For an exact ISO 15552 replacement match, verify the 175 mm stroke, 75 mm adjustment range, PT G3/8 port thread, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2, omitting FB, CA, CB, CR). Because this model lacks the -S magnet option, it cannot host CMSE reed or DMSE solid-state sensors. If your setup requires true load-holding without continuous air, consider the 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 SAIJ80X175-75 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides a push force of 2513N and a pull force of 2268N. At 0.9 MPa, the push force increases to 4523N.
The rear adjuster screw acts as an external stopper, allowing you to shorten the effective travel from the nominal 175 mm down to 100 mm. This stopper only sets the travel end and does not lock or hold the load without live air pressure.
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