Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-40 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke290 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-40
The AirTAC SAIJ100X290-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 5497N of push force at 0.7 MPa. It features a 25mm carbon steel rod and a G1/2 PT tapered port to handle high flow requirements. The integrated rear adjusting screw allows you to fine-tune the effective travel within a 250-290mm window without swapping hardware.
This adjustable-stroke design is ideal for product-size changeovers on packaging lines, letting you dial in the exact end position during commissioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster functions strictly as a travel stop to set deceleration limits, not as a load-holding lock; maintaining position requires continuous live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-40 |
|---|---|
| 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-40
| 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 SAIJ100X290-40 Is Used
Product Changeovers
Dial in the 250-290mm travel window during format changeovers on packaging lines to accommodate different carton sizes without changing the cylinder.
End-Position Tuning
Fine-tune the retract end position at machine commissioning to perfect the seating force against a workpiece, avoiding the need for external stopper blocks.
Heavy Material Handling
Leverage the 5497N push force at 0.7 MPa to push heavy pallets or assemblies, relying on the adjuster to set the precise placement distance.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X290-40 the Right Cylinder?
Selecting this 100mm bore model makes sense when your application requires substantial thrust, stepping up from a 63mm bore that provides 2182N at 0.7 MPa. You would choose the SAIJ adjustable variant over a fixed SAI cylinder when your line processes varying product sizes and needs a variable end-stop rather than manufacturing custom lengths. If your setup demands holding a load without live air, you must pivot to an external rod lock or explore the SAIL or BSAI locking cylinder series.
For an exact ISO 15552 replacement match, verify the 100mm bore, 290mm nominal stroke, 40mm adjustment range, G1/2 port, and required mounting style. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the 290mm stroke is relatively long, the 25mm rod diameter provides rigidity, but you should still use an external guide to prevent excessive side-loading on the piston.
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 SAIJ100X290-40 FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 3681N of pull force. It can reach a maximum push force of 7068N at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that shortens the 290mm nominal stroke by up to 40mm, giving you a usable travel window of 250-290mm. It sets the end-of-travel position but does not lock the load without continuous air pressure.
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