Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75 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 SAIJ80AX290-75
The AirTAC SAIJ80X290-75 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 290 mm travel by up to 75 mm. This creates a highly flexible 215-290 mm usable travel window for precise end-position tuning during commissioning. In the 80 mm bore class, it generates 2513 N of pull force and 3518 N of push force at a 0.7 MPa operating pressure.
This variant features an SUS420J2 stainless steel piston rod (code A) for enhanced corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE solid-state switches. Fluid supply connects via PT tapered G3/8 ports, and the unit reaches operating speeds of 30-800 mm/s.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75 |
|---|---|
| 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 SAIJ80AX290-75
| 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 SAIJ80AX290-75 Is Used
Variable End-Stop Setup
Dial in the exact 215 to 290 mm travel distance during machine commissioning to accommodate different product sizes without changing hardware.
High-Force Positioning
Leverage the 2513 N pull force to move heavy fixtures, using the rear screw to precisely define the retraction endpoint.
Changeover Adjustment
Quickly reconfigure the cylinder's effective stroke on the factory floor by turning the rear adjuster, avoiding the downtime of mechanical disassembly.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-75 the Right Cylinder?
Choose this 80 mm bore when your application requires higher thrust than a 63 mm cylinder (which provides 1402 N pull at 0.5 MPa) but you want to avoid the larger footprint and air consumption of a 100 mm bore. The 75 mm rear adjustment screw is ideal for product changeovers on a line, letting you set variable end stops without physically swapping the cylinder or adding external stopper blocks. Because the stroke is 290 mm, an external guide is recommended to support the rod and prevent excessive side-loading on the long travel.
When specifying a replacement, match the 80 mm bore, 290 mm nominal stroke, 75 mm adjustment range, PT G3/8 port thread, and standard non-magnet configuration. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider the SAIL or BSAI series.
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 SAIJ80AX290-75 FAQ
At 0.5 MPa, the 80 mm bore provides 2513 N of pull force and 2268 N of push force. If you increase the pressure to 0.7 MPa, the push force rises to 3518 N.
The rear adjuster screw lets you shorten the 290 mm nominal stroke by up to 75 mm, giving an adjustable travel window of 215 to 290 mm. It acts as a mechanical stop to fine-tune the end position and is not a locking device.
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