Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-75S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-75S
The AirTAC SAIJ100X450-75-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a generous 3927N of push force at 0.5 MPa and incorporates a 75mm adjustment range, creating a usable travel window between 375mm and 450mm for precise end-position tuning at commissioning. This model includes a SUS304 stainless steel rod (code B) for superior corrosion resistance and comes with a magnetic piston for position sensing.
Because the nominal stroke is 450mm, the 25mm rod diameter and M20x1.5 rod thread provide a robust platform, though an external guide is recommended to manage side loads over this extended travel. The extruded aluminum barrel includes sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a mechanical stop to set deceleration and end positions, meaning it will not hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-75S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 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 SAIJ100BX450-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×450 | 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 SAIJ100BX450-75S Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 375-450mm window during machine commissioning without replacing the entire cylinder.
Product Changeover Lines
Quickly adapt the stroke length on packaging or processing equipment to handle different material lengths on the fly.
Corrosion-Resistant Actuation
Leverage the SUS304 stainless steel rod for reliable, high-force operation in environments requiring moisture or washdown resistance.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-75S the Right Cylinder?
Choose this 100mm bore cylinder when an application requires substantial thrust—3927N at 0.5 MPa or up to 7068N at 0.9 MPa—alongside variable end-stops. If you need less force, stepping down to an 80mm bore yields 2513N at 0.5 MPa, whereas a 125mm bore offers 6136N for heavier loads. The 75mm adjustment range is ideal for machinery that undergoes frequent product-size changeovers, eliminating the need to physically swap cylinders or bolt on external stops. For load-holding without continuous air pressure, this cylinder is insufficient; consider an AirTAC SAIL (pneumatic lock) or BSAI (clamp-lock) cylinder instead.
To match this ISO 15552 cylinder exactly, specify a 100mm bore, 450mm nominal stroke, 75mm adjustment range, PT tapered port threads, and a magnetic piston (-S). The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments, deliberately omitting FB, CA, CB, and CR brackets. Operating speed ranges from 30 to 800mm/s.
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 SAIJ100BX450-75S FAQ
At 0.5 MPa operating pressure, this 100mm bore cylinder provides 3927N of push force and 3681N of pull force. At 0.9 MPa, the push force increases to 7068N.
The rear adjuster acts as a mechanical stop that can shorten the 450mm nominal stroke by up to 75mm, providing a usable travel window of 375-450mm. It sets the end position but does not lock the load without live air pressure.
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