Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-40S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-40S 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 SAIJ100BX375-40S
The AirTAC SAIJ100X375-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 5497N of push force at 0.7MPa. It features a durable SUS304 stainless steel rod and a built-in magnet for CMSE and DMSE sensors. By integrating a PT tapered port and a 36mm variable air cushion at both ends, it reliably handles high kinetic energy.
This specific SKU provides a 335-375mm usable travel window, allowing you to dial back the nominal 375mm stroke by up to 40mm. This fine-tuning capability eliminates the need to swap cylinders during product changeovers. Because the stroke exceeds 300mm, the 25mm rod diameter provides structural support, though an external guide is recommended to manage side loads on long extensions.
Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-40S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-40S |
|---|---|
| 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 SAIJ100BX375-40S
| 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 SAIJ100BX375-40S Is Used
Product Size Changeover
Quickly fine-tune the 335-375mm travel window during line format changes without physically replacing the actuator.
End-Stop Calibration
Dial in the exact retract position during machine commissioning to prevent tooling crashes and ensure precise seating.
Variable End Positioning
Adapt the stroke length on the fly for flexible manufacturing lines processing multiple part families.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100BX375-40S the Right Cylinder?
Select this adjustable model over a fixed-stroke SAI when your end-position requires exact tuning at commissioning or frequent machine setup adjustments. If you need less force, the 80mm bore yields 3518N at 0.7MPa; stepping up to 125mm provides 8590N. Keep in mind the rear adjuster acts only as a travel stop and does not hold the load without live air—use a SAIL or BSAI lock for fail-safe holding.
To match this ISO 15552 interchangeable cylinder exactly, specify the 100mm bore, 375mm stroke, 40mm adjustment, PT ports, SUS304 rod, and the -S magnet. It supports the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2. The -S magnet works precisely with AirTAC CMSE reed switches and DMSE solid-state sensors.
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 SAIJ100BX375-40S FAQ
It features a rear external stopper that lets you shorten the effective travel from the 375mm nominal stroke by up to 40mm, creating a 335-375mm usable window. The adjuster is a mechanical stop, not a lock, so it cannot hold the load without live air pressure.
At 0.7MPa operating pressure, it provides 5497N of push force and 3681N of pull force. It can reach a maximum push force of 7068N at 0.9MPa.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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