Airtac SAI125 Standard Air Cylinder SAI125X700S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X700S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 700mm 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
- Stroke700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X700S
The AirTAC SAI125X700-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering 6136 N of push force at 0.5 MPa, this 125 mm bore unit is built to handle substantial loads over its 700 mm stroke. The extruded aluminum barrel design omits tie rods, providing a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
This specific configuration includes a magnet for proximity sensing, allowing seamless integration with CMSE and DMSE switches mounted into the dual sensor grooves on the barrel. The piston rod is constructed from robust carbon steel, and the fluid porting utilizes a PT tapered thread type. As an authentic AirTAC component, it ensures reliable performance in demanding industrial environments.
Airtac SAI125 Standard Air Cylinder SAI125X700S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X700S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 700 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 SAI125X700S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×700 | 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 SAI125X700S Is Used
Automotive Assembly Lifts
Raises and lowers heavy vehicle chassis components on the assembly line, utilizing the 6136 N push force and 700 mm stroke to position parts ergonomically for workers.
Pallet Diversion Gates
Actuates large sweeping arms to redirect heavy pallets between conveyor routes, requiring the extended 700 mm stroke and robust 125 mm bore thrust.
Heavy Goods Stacking
Drives vertical lifting platforms in automated storage systems, moving substantial weights to high-tier shelving using the full extension length.
Is the Airtac SAI125 Standard Air Cylinder SAI125X700S the Right Cylinder?
With a 700 mm stroke, this 125 mm bore cylinder operates at the upper end of standard lengths, making it highly suitable for large gantry systems or heavy material lifting. If an application requires slightly less force, stepping down to the 100 mm bore yields 3927 N at 0.5 MPa. For higher clamping or lifting demands, the 160 mm bore offers 10053 N at 0.5 MPa.
Because the stroke is 700 mm, the unsupported rod length during extension is significant. Side loads will cause bending stress on the rod bearing, so external guide rails or a guided cylinder carriage should be used to prevent premature wear. Additionally, this model does not hold its load if air pressure is lost; for fail-safe load holding, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants instead of relying on the cushion.
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 SAI125X700S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
Yes, the SAI125X700-S is dimensionally interchangeable per ISO 15552 profile-barrel standards. You can drop it into existing mounting interfaces, but ensure your PT port thread type and 700 mm stroke match the fixture.
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