Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-50
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX375-50 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ100 mm
- Stroke375 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-50
It features a 325-375mm usable travel window, allowing you to dial back the nominal 375mm stroke by up to 50mm during commissioning. This built-in fine-tuning eliminates the need to swap cylinders or bolt on external stoppers when aligning end positions.
This SKU is built with a SUS304 stainless steel rod (option B) for superior corrosion resistance and ships with PT tapered port threads. Because the stroke is 375mm, the 25mm rod diameter and M20x1.5 rod thread provide substantial rigidity, though an external guide is still recommended to manage side loads over this longer travel distance.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-50 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-50 |
|---|---|
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-50
| 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 SAIJ100BX375-50 Is Used
Product Changeover
Dial in the 325-375mm travel window on the fly to accommodate different package lengths without physically swapping out the actuator.
End-Position Tuning
Fine-tune the retract end-position during machine commissioning to achieve exact alignment without adding bulky external mechanical stops.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-50 the Right Cylinder?
Choose this 100mm bore when a 63mm cylinder (providing 1559N) is insufficient, but before stepping up to a 125mm bore (6136N). The adjustable 325-375mm window is perfect for product-size changeovers on a line, giving you a variable end-stop without buying a fixed-stroke SAI cylinder. When matching ISO 15552 replacements, verify the 100mm bore, 375mm stroke, 50mm adjustment, PT G1/2 port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
For strokes of 375mm, ensure proper external guiding to prevent excessive side-loading on the rod. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for dead-air load holding, consider an external rod lock or the SAIL/BSAI series.
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 SAIJ100BX375-50 FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 375mm nominal stroke down to 325mm, providing a 50mm tuning window without changing the cylinder.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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