Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 225mm 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
- Stroke225 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-30S
The AirTAC SAIJ100X225-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 195 to 225 mm usable travel window. Equipped with a SUS304 stainless steel rod and a -S magnet, it integrates seamlessly with AirTAC CMSE reed and DMSE electronic sensors via the dual-side barrel grooves. It delivers a robust 7068 N push force at 0.9 MPa.
This adjustable-stroke design allows you to fine-tune the retract end position at commissioning without swapping the cylinder or adding external stops. The rear adjuster acts purely as a travel stop and works in tandem with the 36 mm variable air cushions at both ends to decelerate the load. The mounting footprint utilizes the standard SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR options.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 225 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 SAIJ100BX225-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×225 | 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 SAIJ100BX225-30S Is Used
Machine Setup Changeover
Dial in the 195-225 mm travel window during product size transitions to set new retract end stops without physically replacing the cylinder.
Variable End-Stop Positioning
Use the rear adjuster to fine-tune the exact end position of a machining head, compensating for tool wear or material thickness variations.
Heavy Payload Handling
Leverage the 7068 N push force at 0.9 MPa and SUS304 rod to move heavy assemblies safely while tuning the stroke to match the fixture depth.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX225-30S the Right Cylinder?
Choose this 100 mm bore when an application demands high thrust, such as the 5497 N push force at 0.7 MPa, but requires precise end-position tuning during product changeovers. If your setup only needs 3927 N of push force at 0.9 MPa, stepping down to the 80 mm bore saves space, but the 100 mm bore is ideal for heavier payloads. The PT tapered port (G1/2) ensures a tight pneumatic seal.
Because the 225 mm stroke exceeds 300 mm is false here, but for any long unsupported travel, an external guide is recommended to prevent side-load wear on the 25 mm rod. Remember that the rear adjuster is a stop, not a lock; the SAIJ100X225-30-S will not hold its load without live air. For true load-holding without pressure, select the SAIL (air-released lock) or BSAI (clamp-lock) series instead. This model is dimensionally interchangeable per ISO 15552.
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 SAIJ100BX225-30S FAQ
This 100 mm bore cylinder provides a push force of 5497 N and a pull force of 3681 N at 0.7 MPa. At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster allows you to shorten the 225 mm nominal stroke by up to 30 mm, creating a usable travel window of 195 to 225 mm. It acts as a mechanical stop to decelerate the load, but it is not a lock and requires live air to hold position.
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