Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30S 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 SAIJ100BX450-30S
The AirTAC SAIJ100X450-30-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers a 3927N push force at 0.5 MPa and provides a usable travel window of 420 to 450 mm, allowing you to trim the effective stroke by up to 30 mm during machine commissioning. This model includes a SUS304 stainless steel rod for corrosion resistance and a magnet for CMSE or DMSE sensors.
Because the 450 mm stroke is substantial, the 25 mm rod diameter and M20x1.5 thread provide a robust interface, though an external guide is still recommended for heavy side loads. The rear adjuster acts purely as a mechanical stop to fine-tune the retract end position without adding external stops. It is not a locking device, so load-holding without live air requires a SAIL or BSAI cylinder.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30S |
|---|---|
| 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 SAIJ100BX450-30S
| 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 SAIJ100BX450-30S Is Used
Precision End-Stop Tuning
Dial in the exact retract position within the 420-450 mm window during machine commissioning without swapping out the entire cylinder.
Product Changeover
Quickly adjust the retract stroke by up to 30 mm to accommodate different product sizes on a single production line.
Heavy Payload Diverting
Leverage the 3927N push force at 0.5 MPa to move heavy items on a conveyor while fine-tuning the diverting distance.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX450-30S the Right Cylinder?
Choose this 100 mm bore cylinder when your application requires 3927N of push force (or 5497N at 0.7 MPa) and precise retract positioning. If your setup only needs 2513N of push force at 0.5 MPa, stepping down to an 80 mm bore saves space, but the 100 mm bore is essential for heavier payloads. The adjustable 420-450 mm window is ideal for product changeovers where exact end-of-stroke positioning varies slightly.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 450 mm stroke, 30 mm adjustment, PT tapered ports, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Given the 450 mm stroke, always support the load with an external guide to prevent excessive side-loading on the rod.
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 SAIJ100BX450-30S FAQ
At an operating pressure of 0.5 MPa, this 100 mm bore cylinder provides a push force of 3927N and a pull force of 3681N. At 0.7 MPa, the push force increases to 5497N.
The rear adjuster screw allows you to shorten the nominal 450 mm stroke by up to 30 mm, giving a usable travel window of 420 to 450 mm. This stopper fine-tunes the end position but does not lock the load without live air pressure.
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