Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 900mm 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
- Stroke900 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-75S
The AirTAC SAIJ100X900-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 825-900 mm. Delivering 3927 N of push force at 0.5 MPa, it handles heavy loads while allowing you to fine-tune the retract end position during commissioning without external stops. This model features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors.
The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. Because the 900 mm stroke is substantial, the 25 mm rod diameter and M20x1.5 rod thread provide robust guidance, though an external guide is recommended for long unsupported loads. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 900 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 SAIJ100BX900-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×900 | 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 SAIJ100BX900-75S Is Used
Heavy Material Forming
Provides 3927 N of push force at 0.5 MPa for pressing and forming operations, with an 825-900 mm adjustable window to accommodate varying material thicknesses.
Automated Line Changeover
Allows operators to fine-tune the retract end position during product size transitions without physically replacing the cylinder or adding external mechanical stops.
Long-Stroke Handling
Moves large payloads across a 900 mm stroke, utilizing the SUS304 stainless steel rod for corrosion resistance in demanding industrial environments.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX900-75S the Right Cylinder?
Choose this 100 mm bore cylinder when your application requires substantial thrust—stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, while this 100 mm bore provides 3927 N. The adjustable-stroke design is ideal for product changeovers, letting you dial in the 825-900 mm end position on the fly instead of swapping a fixed-stroke SAI cylinder. For load-holding without continuous air pressure, you must use a related type like the SAIL (air-released lock) or BSAI (clamp-lock), as the SAIJ adjuster is not a brake.
When matching an ISO 15552 replacement, verify the 100 mm bore, 900 mm stroke, 75 mm adjustment range, PT tapered port threads, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Given the 900 mm stroke, always support long strokes with an external guide to manage side loads effectively.
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 SAIJ100BX900-75S FAQ
At an operating pressure of 0.5 MPa, this 100 mm bore cylinder provides 3927 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 adjusting screw allows you to shorten the effective stroke by up to 75 mm, creating a usable travel window of 825-900 mm. This stopper fine-tunes the end position but does not lock or hold the load without live air pressure.
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