Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-50S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-50S 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 SAIJ100X375-50S
The AirTAC SAIJ100X375-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 325 to 375 mm. Fitted with a PT tapered port and a 25 mm carbon steel rod, it delivers a robust 3927 N push force at 0.5 MPa. The integrated -S magnet operates seamlessly with AirTAC CMSE reed and DMSE electronic sensors housed in the dual-side barrel grooves.
Because the rear stopper trims up to 50 mm of retract travel, you can dial in exact end positions during commissioning without swapping hardware. The adjuster functions strictly as a travel stop to set deceleration alongside the standard air cushions, not as a load lock; for holding loads without live air, consider an external rod lock or the SAIL series.
Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-50S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-50S |
|---|---|
| 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 SAIJ100X375-50S
| 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 SAIJ100X375-50S Is Used
Product Changeovers
Quickly shift the 325-375 mm travel window for varying package sizes on a packaging line without physically replacing the cylinder.
End-Position Tuning
Fine-tune the retract stop during machine commissioning to achieve exact clamping or pressing depths without adding external stops.
Variable Diverter Stroke
Adjust the actuation length on the fly for conveyor sorting arms that handle multiple product lengths on the same lane.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100X375-50S the Right Cylinder?
Choose this 100 mm bore when an 80 mm cylinder (providing 2513 N push at 0.5 MPa) cannot meet your thrust requirements, but a 125 mm bore is excessive. The 50 mm adjustment range is perfect for product changeovers, allowing you to shift the end-of-stroke position dynamically rather than relying on a fixed-stroke SAI cylinder. To match this ISO 15552 footprint, specify the 375 mm stroke, 50 mm adjuster, PT port thread, and -S magnet.
With a 375 mm stroke, the 25 mm rod and M20x1.5 thread handle substantial loads, but long unsupported travel demands an external guide to prevent side-loading damage. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Operating speed ranges from 30 to 800 mm/s.
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 SAIJ100X375-50S 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 acts as a stopper that allows you to shorten the nominal 375 mm stroke by up to 50 mm, creating a 325-375 mm usable travel window. It sets the end position but does not lock the load without live air pressure.
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