Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 375mm 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
- Stroke375 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30
The AirTAC SAIJ100X375-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 375 mm nominal travel by up to 30 mm for a precise 345-375 mm usable window. Delivering 3927 N of push force at 0.5 MPa, it handles substantial loads while featuring a SUS304 stainless steel rod for superior corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model uses PT tapered ports and omits the FB, CA, CB, and CR mounting options found on some standard cylinders, supporting Basic, FA, LB, TC, FTC, TCM1, and TCM2 attachments. The rear adjuster acts strictly as a travel stop to fine-tune deceleration and end positions during commissioning; it is not a locking device and will not hold a load without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 375 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 SAIJ100BX375-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×375 | 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 SAIJ100BX375-30 Is Used
Product Size Changeovers
Dial in the 345-375 mm stroke window on the fly when packaging different product lengths, avoiding the need to physically swap out cylinders for new end positions.
Commissioning Fine-Tuning
Use the 30 mm rear adjuster to perfectly set the retract end-position during machine setup, compensating for mechanical tolerances without adding external stop blocks.
Variable End-Stop Diverter
Adjust the travel end-stop on a conveyor sorting arm to handle varying pallet sizes, utilizing the 3927 N push force to move heavy loads reliably.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-30 the Right Cylinder?
Choose this 100 mm bore when the neighboring 80 mm cylinder (2513 N push at 0.5 MPa) lacks the necessary thrust, but a 125 mm bore would be excessive. The adjustable 345-375 mm window is ideal for product changeovers on a line, letting you shift the end-stop without physically swapping the cylinder or adding external stops. For load-holding without continuous air pressure, consider the SAIL or BSAI series instead of relying on the rear stopper.
Because the 375 mm stroke is relatively long, the 25 mm rod diameter should still be paired with an external guide to prevent excessive side-loading on the piston. This cylinder is dimensionally interchangeable per ISO 15552 and can be equipped with AirTAC CMSE reed or DMSE electronic sensors if a magnet is specified.
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 SAIJ100BX375-30 FAQ
At 0.5 MPa operating pressure, 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 375 mm nominal stroke by up to 30 mm, creating a 345-375 mm usable travel window. It functions as a mechanical stop for end-position tuning and is not a lock, meaning the cylinder requires live air to hold its position.
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