Airtac SAIJ100 Adjustable Cylinder SAIJ100AX290-40S
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX290-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 290mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke290 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX290-40S
The AirTAC SAIJ100X290-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling you to dial back the nominal 290 mm travel by up to 40 mm. This creates a highly flexible 250-290 mm usable end-position window, allowing precise fine-tuning directly at commissioning without swapping out the physical cylinder.
This SKU features a SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and includes a magnet for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel maintains standard ISO 15552 mounting dimensions. It is important to note that the rear adjuster acts purely as a mechanical stop to set the travel end; it does not lock or hold the load without continuous live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX290-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX290-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 290 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100AX290-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | 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 SAIJ100 Adjustable Cylinder SAIJ100AX290-40S Is Used
Product Changeovers
Dial in the 250-290 mm travel window during format changes on packaging lines, setting new end positions without machining custom spacers.
Commissioning Setup
Fine-tune the final retract position during machine build, absorbing minor mechanical tolerances by adjusting the rear stopper rather than re-piping.
Variable End Stops
Provide adaptable end-of-stroke positioning for automated assembly stations where multiple part sizes are processed on the same fixture.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX290-40S the Right Cylinder?
Select this 100 mm bore cylinder when your application requires substantial thrust—such as 3927 N at 0.5 MPa or up to 7068 N at 0.9 MPa—combined with variable end-stop positioning. If your process demands less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, whereas larger loads up to 11045 N require moving to a 125 mm bore. The adjustable stroke is ideal for machine setups requiring frequent product-size changeovers, replacing the need to maintain multiple fixed-stroke SAI cylinders.
When matching this ISO 15552 cylinder for an upgrade, confirm the 100 mm bore, 290 mm nominal stroke, 40 mm adjustment range, PT tapered port thread, and the -S magnet option. Because the 290 mm stroke exceeds 300 mm when fully extended with the adjuster, ensure an external guide is used to prevent excessive side-loading on the rod. For applications requiring true load holding without live air, consider the SAIL or BSAI series instead of relying on this stopper.
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 SAIJ100 Adjustable Cylinder SAIJ100AX290-40S FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the nominal 290 mm down to 250 mm. It sets the deceleration and end position but does not lock or hold the load without live air pressure.
At 0.9 MPa, the push force increases to 7068 N.
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