Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-50
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-50 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 SAIJ100BX290-50
The AirTAC SAIJ100X290-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 290 mm travel that can be fine-tuned down by up to 50 mm, giving you a usable 240-290 mm end-position window. Delivering 3927 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and operates at 30-800 mm/s.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during machine commissioning. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement. You can mount AirTAC CMSE reed or DMSE electronic sensors directly into the profile, though this specific SKU ships without a magnet.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-50 |
|---|---|
| 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 SAIJ100BX290-50
| 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 SAIJ100BX290-50 Is Used
Product Changeover
Dial in the 240-290 mm travel window during packaging line format changes to accommodate different carton sizes without swapping hardware.
End-Stop Calibration
Fine-tune the final retract position during machine commissioning to achieve precise mating of heavy components using 3927 N of force.
Variable Assembly Stops
Adjust the rear stopper on the fly for automated assembly lines that require different end positions for various product runs.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX290-50 the Right Cylinder?
Choose this 100 mm bore when a 50 mm bore falls short on power, as the smaller version only yields 982 N of push force at 0.5 MPa. The SAIJ100X290-50 is selected specifically for its 240-290 mm adjustable travel window, allowing precise end-stop tuning without changing the cylinder. Because the stroke is 290 mm, ensure you use an external guide to support the load and prevent excessive side-loading on the rod.
To match this ISO 15552 replacement exactly, specify: 100 mm bore, 290 mm stroke, 50 mm adjustment, PT tapered port threads, SUS304 (B) rod material, and no magnet. Remember that the rear adjuster is a travel stop, not a lock; the cylinder will not hold a load without live air. For positive load-holding, consider the SAIL or BSAI series instead. Mounting options are limited to 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 SAIJ100 Adjustable Cylinder SAIJ100BX290-50 FAQ
At 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. It can reach up to 7068 N of push force at 0.7 MPa.
The rear adjuster acts as a mechanical stop that lets you trim the effective stroke back by up to 50 mm. This creates a usable travel window of 240-290 mm from the 290 mm nominal stroke, allowing precise tuning without external stops.
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