Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 210mm 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
- Stroke210 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75S
The AirTAC SAIJ100X210-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 135 to 210 mm. Delivering 5497 N of push force at 0.7 MPa, it handles demanding positioning tasks. The integrated magnet supports position sensing via AirTAC CMSE reed or DMSE electronic switches.
This configuration features a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear stopper allows you to fine-tune the end position at commissioning without adding external stops.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 210 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 SAIJ100BX210-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×210 | 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 SAIJ100BX210-75S Is Used
Machine Changeover
Dial in the 135 to 210 mm travel window during product size changes without replacing the cylinder or adding mechanical shims.
Variable End Stops
Fine-tune the retract position at commissioning to perfectly seat components, utilizing the 75 mm rear adjustment screw.
Corrosive Assembly Lines
Leverage the 5497 N push force and SUS304 stainless steel rod for reliable actuation in washdown or mildly corrosive environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX210-75S the Right Cylinder?
Choose this adjustable-stroke model when an application requires precise end-position tuning during setup or product changeover, avoiding the need to swap out a fixed-stroke SAI cylinder. If your process requires less force, stepping down to an 80 mm bore yields 3518 N at 0.7 MPa; if more power is needed, a 125 mm bore provides 8590 N. For exact ISO 15552 replacement matching, verify the 100 mm bore, 210 mm stroke, 75 mm adjustment, PT ports, and the -S magnet.
Because the nominal stroke is 210 mm, ensure adequate external guiding to prevent excessive side loading on the SUS304 rod. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an external rod lock or the AirTAC SAIL series.
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 SAIJ100BX210-75S FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder provides 5497 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 801 kgf.
The rear adjuster acts as a mechanical stop that trims the effective travel. For this SAIJ100X210-75-S model, you can shorten the 210 mm nominal stroke by up to 75 mm, creating a usable travel window of 135 to 210 mm. It is a stop, not a lock, and requires live air to hold position.
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