Airtac SAIJ100 Adjustable Cylinder SAIJ100X250-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X250-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 250mm 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
- Stroke250 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100X250-30S
The AirTAC SAIJ100X250-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 3927N of push force at 0.5MPa. With a nominal 250mm stroke and a 30mm adjustment screw, you gain a precise 220-250mm usable travel window. This allows fine end-position tuning at commissioning without swapping the cylinder or adding external stops.
It features a carbon steel rod with an M20x1.5 thread, providing robust resistance to side loads. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet works seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts solely as a travel stop to set deceleration endpoints and does not hold the load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X250-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X250-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 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 SAIJ100X250-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×250 | 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 SAIJ100X250-30S Is Used
Product Changeovers
Dial in the 220-250mm travel window during format changes on packaging lines without physically swapping out the cylinder.
End-Stop Calibration
Fine-tune the retract end position during machine commissioning to achieve exact pressing or clamping depths.
Automated Assembly
Handle variable part sizes on a single conveyor line by adjusting the 30mm stroke buffer as needed.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X250-30S the Right Cylinder?
Select this 100mm bore when an 80mm cylinder (2513N push at 0.5MPa) is insufficient, but a 125mm bore (6136N) would be excessive overkill. Choose this adjustable-stroke SAIJ model over a fixed SAI when your machine setup requires variable end-stops or product-size changeovers, letting you dial in the 220-250mm travel window on the fly.
For an exact ISO 15552 replacement match, specify the 100mm bore, 250mm stroke, 30mm adjustment, PT tapered ports, and the -S magnet. The mounting set is limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the stroke is 250mm, ensure an external guide supports long unsupported rods to prevent side-load wear. For load-holding without live pressure, use an external rod lock or pilot-operated check valve, or select a SAIL or BSAI cylinder instead.
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 SAIJ100X250-30S FAQ
At 0.5MPa it provides 3927N of push force and 3681N of pull force. At 0.7MPa the push force increases to 5497N.
The rear adjuster screw acts as a mechanical stop, allowing you to trim the effective travel back from the 250mm nominal stroke down to 220mm. It sets the deceleration endpoint and does not lock the load.
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