Airtac SAI125 Standard Air Cylinder SAI125X115S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X115S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 115mm 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
- Stroke115 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X115S
The AirTAC SAI125X115-S is a double-acting ISO 15552 profile cylinder offering a robust 6136 N push force at 0.5 MPa. Its 115 mm stroke provides substantial extension for heavy-duty positioning tasks. The extruded aluminum barrel design omits tie rods, presenting a clean exterior that integrates seamlessly into modern machinery.
Equipped with a magnet for proximity sensing, this unit works directly with CMSE and DMSE switches seated in the dual sensor grooves. The standard carbon steel piston rod provides excellent durability for industrial dynamics, while the PT tapered port threads ensure a tight, reliable pneumatic connection.
Airtac SAI125 Standard Air Cylinder SAI125X115S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X115S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 115 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 SAI125X115S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×115 | 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 SAI125X115S Is Used
Heavy Material Forming
Generates 8590 N of push force at 0.7 MPa, making it suitable for pressing, stamping, and forming rigid materials in automated production cells.
Large Clamp Assemblies
Delivers high clamping pressure for securing heavy automotive components or large metal castings during machining and welding operations.
Bulk Material Diverters
Provides the necessary muscle to pivot heavy bulk material diverters and large-scale sorting gates on high-capacity conveyor lines.
Is the Airtac SAI125 Standard Air Cylinder SAI125X115S the Right Cylinder?
Selecting this 125 mm bore is ideal when a 100 mm bore (providing 5497 N push at 0.7 MPa) is insufficient for your load requirements. For applications needing even greater thrust, consider stepping up to the 160 mm bore which yields 14074 N. Since this cylinder features a 115 mm stroke, it safely handles moderate extension lengths without requiring external rod guides.
As a standard double-acting cylinder, it does not hold loads if air pressure is lost; for fail-safe holding, explore the SAIL variant with an air-released lock. This model is dimensionally interchangeable per ISO 15552, making it a direct drop-in replacement for other ISO 15552 profile cylinders. It uses a G1/2 port, M27x2 rod thread, and pairs with FA or LB mounting accessories.
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 SAI125X115S FAQ
The SAI125X115-S delivers 6136 N push force and 5734 N pull force at 0.5 MPa. At 0.7 MPa, the push force increases to 8590 N.
Yes, the SAI125X115-S is dimensionally interchangeable per ISO 15552, meaning it serves as a drop-in replacement for other standard ISO 15552 profile cylinders without modifying the mounting footprint.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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