Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 290mm 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
- Stroke290 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75S
The AirTAC SAIJ80X290-75-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 215-290 mm usable travel window, letting you dial back the 290 mm nominal stroke by up to 75 mm during commissioning. Delivering 4523 N of push force at 0.9 MPa, it handles demanding positioning tasks.
This variant features a SUS420J2 stainless steel rod (option A) and includes a magnet for CMSE and DMSE sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the PT tapered port threads ensure a robust, leak-free pneumatic connection.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 290 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 SAIJ80AX290-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×290 | 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 SAIJ80AX290-75S Is Used
Variable End-Stop Positioning
Dial in the exact retract distance between 215 and 290 mm during machine setup to accommodate different product sizes without changing the cylinder.
Machine Changeover
Fine-tune the end position on multi-product lines quickly, using the rear adjuster to set precise stopping points for varying material lengths.
Heavy-Duty Clamping
Leverage the 4523 N push force at 0.9 MPa to secure heavy workpieces, adjusting the clamping depth precisely to avoid material deformation.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75S the Right Cylinder?
Choose this 80 mm bore when an application requires substantial thrust—such as 2513 N at 0.5 MPa—combined with variable end-stop positioning. If you need less force, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa. The adjustable rear screw is a mechanical stop for fine-tuning the retract end position without swapping cylinders, but it will not hold the load without live air; for fail-safe holding, use an external rod lock or consider the SAIL or BSAI series.
Because the 290 mm stroke is substantial, the 25 mm rod and M20x1.5 thread provide rigidity, but long unsupported strokes still require an external guide to prevent side-loading damage. This SAIJ model uses the reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and is dimensionally interchangeable per ISO 15552.
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 SAIJ80AX290-75S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 75 mm. This creates a usable travel window of 215 to 290 mm, allowing precise end-position tuning without adding external stops.
At 0.9 MPa operating pressure, the SAIJ80X290-75-S provides 4523 N of push force and 4071 N of pull force. At a standard 0.5 MPa, it delivers 2513 N push and 2268 N pull.
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