Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100S 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 SAIJ80AX290-100S
The AirTAC SAIJ80X290-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster, enabling you to dial back the nominal 290 mm travel to any point within a 190-290 mm usable window. Delivering 2513 N of push force at 0.5 MPa, it provides robust actuation for mid-weight industrial tasks. The PT tapered ports and integrated magnet for CMSE / DMSE sensors come standard on this variant.
This unit features a SUS420J2 stainless steel piston rod for superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster acts purely as a mechanical travel stop; it does not lock or hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100S |
|---|---|
| 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 SAIJ80AX290-100S
| 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 SAIJ80AX290-100S Is Used
Variable End-Stop Machining
Dial in the exact 190-290 mm clamping reach during machine setup to accommodate different part lengths without replacing the cylinder.
Product Changeover Diverters
Quickly reposition a diverter arm's end position on a packaging line by adjusting the rear screw, adapting to new box sizes on the fly.
Commissioning Fine-Tuning
Trim the travel window by up to 100 mm to perfect the mechanical timing of a press operation during initial equipment bring-up.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX290-100S the Right Cylinder?
Select this 80 mm bore cylinder when an application requires a 190-290 mm variable end-stop, allowing precise end-position tuning during commissioning without adding external stops or swapping out a fixed-stroke SAI cylinder. If your force requirements are lower, stepping down to a 63 mm bore yields 1559 N at 0.5 MPa; if you need significantly more power, a 100 mm bore provides 3927 N at 0.5 MPa.
Because the 290 mm stroke is relatively long, the 25 mm rod should be paired with an external guide to prevent excessive side-loading and premature seal wear. For true load-holding without continuous air pressure, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants. This SAIJ model uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80AX290-100S 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 can deliver up to 513 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 290 mm down to 190 mm. This creates a 100 mm adjustable window for fine-tuning the retract end position without changing the cylinder.
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