Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10
The AirTAC Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10 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 SAIJ100AX125-10
The AirTAC SAIJ100X125-10 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 115-125 mm usable travel window, letting you dial back the nominal 125 mm stroke by up to 10 mm during commissioning. Delivering 5497 N of push force at 0.7 MPa, it handles heavy positioning tasks without needing external stops.
This unit features a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance and uses PT tapered port threads with a G1/2 connection. The extruded aluminum barrel includes sensor grooves on both sides, and the rear adjuster acts purely as a travel stop, meaning the load is never held without live air pressure.
Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10 Technical Specifications
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10 |
|---|---|
| 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 SAIJ100AX125-10
| 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 SAIJ100AX125-10 Is Used
Tooling Position Tuning
Fine-tune the 115-125 mm travel window during machine setup to perfectly seat heavy dies or clamps without adding external stopper blocks.
Product Changeover
Quickly adjust the retract end-position by up to 10 mm when running a new product size on the line, minimizing changeover downtime.
Heavy Payload Handling
Leverage the 5497 N push force at 0.7 MPa to move heavy workpieces, using the rear screw to set precise deceleration limits.
Is the Airtac SAIJ100 Adjustable Cylinder SAIJ100AX125-10 the Right Cylinder?
Choose this 100 mm bore when the 80 mm class (3518 N push at 0.7 MPa) is insufficient for your tooling payload, or step down if 5497 N is excessive. An adjustable stroke is ideal for product changeovers where the exact end-of-stroke position varies slightly, saving you from swapping a fixed-stroke SAI cylinder. For load-holding without continuous air, select a SAIL or BSAI series instead. To match this ISO 15552 replacement, specify: 100 mm bore, 125 mm stroke, 10 mm adjustment, PT G1/2 port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and no magnet.
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 SAIJ100AX125-10 FAQ
At 0.7 MPa operating pressure, this 100 mm bore cylinder generates 5497 N of push force and 3681 N of pull force. It can reach a maximum push force of 7068 N at 0.9 MPa.
The rear adjuster screw lets you shorten the effective travel from the nominal 125 mm down to 115 mm. It functions as a mechanical end-stop for position tuning and does not lock the load without live air pressure.
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