Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30S 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 SAIJ80AX290-30S
The AirTAC SAIJ80X290-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 260 to 290 mm. Delivering a robust 4523N of push force at 0.9 MPa, it handles demanding actuation tasks while allowing precise end-position tuning during commissioning. The integrated -S magnet supports position sensing via AirTAC CMSE reed and DMSE electronic switches.
This model features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Because the stroke extends to 290 mm, an external guide is recommended to prevent excessive side-loading on the rod.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30S |
|---|---|
| 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 SAIJ80AX290-30S
| 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 SAIJ80AX290-30S Is Used
Machine Changeover
Dial in the 260-290mm retract stop during product size transitions without physically swapping the cylinder or repositioning hard stops.
End-Stop Calibration
Fine-tune the final end-of-stroke position during commissioning to absorb mechanical tolerances in the fixture.
Variable Positioning
Adjust the travel distance on automated assembly lines to accommodate different part heights quickly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-30S the Right Cylinder?
Choose this 80mm bore when an application requires high force (2268N pull at 0.5 MPa) alongside the ability to dial in the exact retract distance without adding external mechanical stops. If the thrust is excessive for the load, stepping down to a 63mm bore yields 1402N pull at 0.5 MPa, whereas moving up to a 100mm bore provides 3681N pull at 0.5 MPa. The rear adjuster on this SAIJ acts strictly as a travel stop to fine-tune the 260-290 mm window; it does not hold the load without live air pressure. For true load-holding, select a SAIL or BSAI cylinder.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard mounting footprints but uses a reduced SAIJ accessory set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). When ordering a replacement, verify the 80mm bore, 290mm nominal stroke, 30mm adjustment range, PT port threads, and -S magnet option.
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 SAIJ80AX290-30S FAQ
At 0.9 MPa it provides 4523N of push force and 4071N of pull force. At 0.5 MPa, the push force is 2513N and the pull force is 2268N.
The rear adjuster screw allows you to shorten the effective stroke by up to 30mm, creating a usable travel window between 260mm and 290mm. This stopper only sets the end position; it does not lock or hold the load without continuous air pressure.
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