Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-40
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 240mm 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
- Stroke240 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-40
The AirTAC SAIJ100X240-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers a robust 5497N push force at 0.7 MPa and provides a 200-240 mm usable travel window, allowing you to dial back the 240 mm nominal stroke by up to 40 mm during commissioning.
This unit is configured with a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, ready for AirTAC CMSE reed or DMSE electronic sensors if a magnet is added later. It supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-40 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 240 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 SAIJ100BX240-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×240 | 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 SAIJ100BX240-40 Is Used
Product Changeover
Dial in the exact 200-240 mm end position during line format changes without physically swapping the cylinder or adding external stopper blocks.
End-Position Tuning
Fine-tune the retract stroke at commissioning to compensate for mechanical wear or sensor drift, ensuring precise placement of heavy 100 mm bore loads.
Corrosive Environments
Leverage the SUS304 stainless steel rod for pushing and clamping tasks in washdown or mildly corrosive manufacturing settings.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-40 the Right Cylinder?
Choose this 100 mm bore when an 80 mm bore (3518N push at 0.7 MPa) is insufficient, but you want to avoid stepping up to the heavier 125 mm class. The 40 mm rear adjuster is ideal for product changeovers, letting you fine-tune the end position without swapping cylinders or adding external stops.
For a 240 mm stroke, the 25 mm rod diameter handles moderate side loads, but an external guide is recommended for heavy lateral loads. The rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding, select an AirTAC SAIL or BSAI cylinder. To replace an ISO 15552 unit, match the 100 mm bore, 240 mm stroke, 40 mm adjustment, PT G1/2 port, and mounting style.
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 SAIJ100BX240-40 FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497N of push force and 3681N of pull force. It can reach a maximum of 801 kgf at 1.0 MPa.
The rear adjuster screw acts as an external stop, allowing you to shorten the effective stroke from 240 mm down to 200 mm. It sets the travel end but does not lock or hold the load without continuous air pressure.
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