Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 350mm 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
- Stroke350 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75S
The AirTAC SAIJ100X350-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 275 to 350 mm usable travel window, letting you dial back the nominal 350 mm stroke by up to 75 mm during commissioning without adding external stops. In the 100 mm bore class, it generates 3927 N of push force and 3681 N of pull force at 0.5 MPa.
This SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides. It uses a G1/2 port and achieves speeds of 30-800 mm/s. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 350 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 SAIJ100BX350-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×350 | 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 SAIJ100BX350-75S Is Used
Machine Changeover
Dial in the 275-350 mm stroke window on the fly to accommodate different product lengths during line changeovers.
Commissioning Calibration
Fine-tune the exact end-of-stroke position during initial setup without swapping out the entire cylinder.
Variable End Stops
Adjust the retract stopper precisely for diverter or gating mechanisms that require flexible travel limits.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX350-75S the Right Cylinder?
Choose this 100 mm bore adjustable cylinder when an application requires precise end-position tuning across a 275-350 mm travel window. If you need less force, stepping down to an 80 mm bore yields 2513 N of push force at 0.5 MPa, whereas moving up to 125 mm provides 6136 N. The SAIJ design is selected over a fixed SAI cylinder when machine setups require variable end-stops or frequent product-size changeovers.
For ISO 15552 replacements, match the 100 mm bore, 350 mm nominal stroke, 75 mm adjustment range, G1/2 PT port, and the -S magnet requirement. Because the 350 mm stroke is relatively long, the 25 mm rod diameter will still carry side loads, but an external guide rail is strongly recommended to prevent binding over extended travel. For load-holding without live air, select an AirTAC SAIL or BSAI cylinder instead, as the rear adjuster here is a stop, not a lock. SAIJ supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ100BX350-75S FAQ
At a 0.5 MPa operating pressure, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective travel from 350 mm down to as little as 275 mm. This creates a 275-350 mm adjustable window for fine-tuning the retract position without replacing the cylinder.
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