Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-40S 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 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 SAIJ100BX290-40S
The AirTAC SAIJ100X290-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 250-290 mm usable travel window by allowing you to dial back the 290 mm nominal stroke by up to 40 mm during commissioning. Delivering 3927 N of push force at 0.5 MPa, it handles heavy loads without needing external stops.
This unit features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-40S |
|---|---|
| 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 | 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 SAIJ100BX290-40S
| 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 SAIJ100BX290-40S Is Used
Machine Changeover
Fine-tune the 250-290 mm travel window on the fly to accommodate different product lengths without physically replacing the cylinder.
Variable End Stops
Set precise retract positions for sorting or diverting heavy items on a conveyor line using the 40 mm rear adjustment screw.
Heavy Assembly Press
Leverage the 3927 N push force at 0.5 MPa to seat components securely while adjusting the final end position during setup.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-40S the Right Cylinder?
Choose this 100 mm bore cylinder when an application requires substantial thrust—3927 N at 0.5 MPa or 5497 N at 0.7 MPa. If you need less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa. The adjustable stroke is ideal for product changeovers, letting you fine-tune the retract end position without swapping hardware.
For a 290 mm stroke, the 25 mm rod diameter provides rigidity, but long unsupported travel demands an external guide to manage side loads. Remember that the rear adjuster is a travel stop, not a lock; this SAIJ cylinder cannot hold loads without live air. For fail-safe load holding, consider the SAIL or BSAI series. This model is dimensionally interchangeable per ISO 15552.
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 SAIJ100BX290-40S FAQ
It features a rear adjusting screw that acts as a mechanical stopper, allowing you to shorten the effective stroke by up to 40 mm. This creates a 250-290 mm usable travel window, letting you fine-tune the end position without adding external stops.
At 0.5 MPa, it provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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