Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-20S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-20S 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 SAIJ100BX240-20S
The AirTAC SAIJ100X240-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 220-240mm usable travel window, allowing you to dial back the nominal 240mm stroke by up to 20mm during commissioning. Delivering 3927N of push force at 0.5MPa, it is built with a SUS304 stainless steel rod and includes a magnet for position sensing.
This model uses PT tapered port threads and a G1/2 air supply. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting. The rear adjuster acts purely as a travel stop for end-position tuning and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-20S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-20S |
|---|---|
| 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 SAIJ100BX240-20S
| 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 SAIJ100BX240-20S Is Used
End-Stop Calibration
Fine-tune the 220-240mm travel window during machine setup to achieve precise end positions without adding external stopper blocks.
Product Changeover
Quickly adjust the retract distance on packaging lines handling varying product sizes, utilizing the 3927N push force effectively.
Assembly Pressing
Apply controlled thrust for pressing operations, using the SUS304 rod for durability and the -S magnet to confirm stroke completion.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-20S the Right Cylinder?
Choose this 100mm bore when you need higher thrust than a 80mm bore provides, stepping up from 2513N to 3927N at 0.5MPa. The adjustable stroke is ideal for product changeovers or fine-tuning end stops without swapping hardware. For load-holding without continuous air, consider the SAIL or BSAI series instead of relying on this stopper. To match this ISO 15552 replacement exactly, specify the 100mm bore, 240mm stroke, 20mm adjustment, PT port, and -S magnet.
With a 240mm stroke, the 25mm rod diameter handles standard loads well, but long unsupported strokes still require an external guide to prevent side-load wear. Mounting options include 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 SAIJ100BX240-20S FAQ
At 0.5MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.7MPa, the push force increases to 5497N.
The rear adjuster screw allows you to shorten the effective stroke by up to 20mm, creating a 220-240mm travel window. It functions as a mechanical stop for end-position tuning and does not lock the load.
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