Airtac SAI125 Standard Air Cylinder SAI125BX100S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125BX100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 100mm 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.
- BoreØ125 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125BX100S
The AirTAC SAI125X100-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation, delivering a robust 6136 N push force at 0.5 MPa. Its 100 mm stroke provides substantial actuation length for demanding industrial tasks.
This specific configuration includes a SUS304 stainless steel piston rod for superior corrosion resistance and is equipped with a magnet (-S) for seamless integration with CMSE or DMSE sensor switches along the dual grooves of its extruded aluminum barrel.
Airtac SAI125 Standard Air Cylinder SAI125BX100S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125BX100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI125 Standard Air Cylinder SAI125BX100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×100 | 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 SAI125 Standard Air Cylinder SAI125BX100S Is Used
Heavy Metal Stamping
Provides the high thrust required for stamping and forming thick metal components in automated fabrication lines.
Large Press Feeding
Actuates robust feeding mechanisms that position heavy raw materials into large-scale hydraulic or mechanical presses.
Bulk Material Diversion
Drives heavy-duty pivoting diverter arms on high-throughput conveyor belts to route dense bulk materials.
Is the Airtac SAI125 Standard Air Cylinder SAI125BX100S the Right Cylinder?
If your application requires less force, stepping down to the 100 mm bore yields 3927 N at 0.5 MPa, while moving up to the 160 mm bore provides 10053 N for heavier loads. At 100 mm stroke, side-load stress on the rod bearing is minimal, but always ensure the load is axially aligned to prevent premature wear.
This model features PT tapered port threads and a G1/2 air supply. Being a standard ISO 15552 profile cylinder, it serves as a direct dimensional drop-in replacement for other ISO 15552 profile cylinders. Remember that the standard adjustable air cushions only decelerate the piston at stroke ends; they do not hold a load. For dead-end positioning without air pressure, specify the SAIL or BSAI locking variant.
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 SAI125 Standard Air Cylinder SAI125BX100S FAQ
At an operating pressure of 0.5 MPa, the SAI125X100-S generates a push force of 6136 N and a pull force of 5734 N. At 0.7 MPa, the push force increases to 8590 N.
Yes, the SAI125X100-S is dimensionally interchangeable per ISO 15552. You can drop it in to replace other ISO 15552 profile cylinders by matching the 125 mm bore, 100 mm stroke, and mounting footprint.
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