Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-30S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 240mm 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
- Stroke240 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-30S
The AirTAC SAIJ100X240-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 240 mm stroke that can be fine-tuned backward by up to 30 mm, yielding a usable travel window of 210-240 mm. In the 100 mm bore class, it generates 3927 N of push force at 0.5 MPa and 5497 N at 0.7 MPa, making it suitable for heavy-duty positioning tasks.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a built-in magnet for position sensing. The extruded aluminum barrel incorporates sensor grooves on both sides, directly supporting AirTAC CMSE reed and DMSE electronic solid-state switches. You can fine-tune the retract end-position at commissioning without swapping the cylinder or adding external stops, while the PT-tapered G1/2 port handles the required air volume.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-30S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 240 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 SAIJ100BX240-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×240 | 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 SAIJ100BX240-30S Is Used
Product Size Changeovers
Dial in the 210-240 mm travel window during production line changeovers to accommodate different product lengths without swapping out the entire actuator.
Heavy-Duty Positioning
Leverage the 3927 N push force at 0.5 MPa to move heavy pallets or fixtures, using the rear stopper to fine-tune the exact retract position at commissioning.
Corrosive Assembly Lines
Utilize the SUS304 stainless steel rod and DMSE electronic sensors in washdown or mildly corrosive manufacturing environments where standard carbon steel rods would degrade.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX240-30S the Right Cylinder?
Select this 100 mm bore cylinder when an application requires substantial thrust—such as 3927 N at 0.5 MPa—combined with a variable end-stop. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, whereas a 125 mm bore provides 6136 N for heavier loads. The adjustable stroke is ideal for product changeovers on a line, allowing you to dial in the 210-240 mm travel window precisely without machining new hard stops. To replace an ISO 15552 cylinder, match the 100 mm bore, 240 mm stroke, 30 mm adjustment, PT G1/2 port, and the -S magnet requirement.
Because the nominal stroke is 240 mm, the 25 mm rod diameter carries side loads reasonably well, but any long unsupported stroke still demands an external guide to prevent premature seal wear. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true pneumatic locking without pressure, consider the SAIL or BSAI series. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ100BX240-30S FAQ
At 0.5 MPa, this 100 mm bore cylinder provides 3927 N of push force and 3681 N of pull force. At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm from the 240 mm nominal length, creating a 210-240 mm travel window. It functions as a hard stop for end-position tuning and is not a locking device.
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