Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10S
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 125mm 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
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10S
The AirTAC SAIJ100X125-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering 5497N of push force at 0.7 MPa. It features an extruded aluminum barrel with sensor grooves on both sides and a SUS420J2 stainless steel rod. The integrated -S magnet enables precise position detection using AirTAC CMSE reed or DMSE electronic solid-state switches.
This model provides a 115-125mm usable travel window, allowing you to dial back the nominal 125mm stroke by up to 10mm during commissioning. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure. It uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10S Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 125 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 SAIJ100AX125-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×125 | 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 SAIJ100AX125-10S Is Used
End-Position Fine-Tuning
Dial in the exact 115-125mm travel window during machine commissioning to perfect the final clamping position without mechanical shims.
Product Size Changeover
Quickly adjust the rear stop by up to 10mm on automated lines processing slightly different product lengths, minimizing downtime.
Heavy-Duty Forming
Leverage the 5497N push force at 0.7 MPa for pressing or forming tasks where the exact bottoming-out depth must be micro-adjusted on the fly.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10S the Right Cylinder?
Select this 100mm bore cylinder when an application requires substantial thrust, stepping up from a 80mm bore that provides 3518N push force at 0.5 MPa. An adjustable stroke is ideal for machine setups requiring fine end-position tuning without swapping components or adding external stops. For a fixed end position, the standard SAI cylinder is sufficient, but the SAIJ variant excels in product-size changeovers.
When replacing an ISO 15552 cylinder, match the 100mm bore, 125mm stroke, 10mm adjustment, PT tapered port thread, and -S magnet. The 25mm rod diameter and M20x1.5 rod thread handle high side loads well, but for any stroke of 300mm or more, an external guide is still recommended. Remember that the rear adjuster is a stop, not a lock; for load-holding without live air, consider the SAIL or 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 SAIJ100AX125-10S FAQ
At 0.7 MPa operating pressure, this 100mm bore cylinder provides 5497N of push force and 3681N of pull force. At 0.5 MPa, the push force is 3927N.
The rear adjuster screw allows you to shorten the effective stroke by up to 10mm, creating a 115-125mm usable travel window. It functions as a mechanical stop for end-position tuning and does not lock the load without continuous air pressure.
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