Airtac SAI125 Standard Air Cylinder SAI125AX115
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX115 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 SAI125AX115
The AirTAC SAI125X115 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It provides a substantial push force of 6136 N at 0.5 MPa, making it well-suited for high-load pressing and clamping tasks. The 115 mm stroke is a non-standard, made-to-order dimension tailored for specialized mid-range travel requirements.
This unit features a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance in harsh environments. It utilizes PT tapered port threading and includes adjustable air cushions at both ends to manage kinetic energy. Note that this specific stroke length is manufactured to order, ensuring exact fitment for custom machinery.
Airtac SAI125 Standard Air Cylinder SAI125AX115 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX115 |
|---|---|
| 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 SAI125AX115
| 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 SAI125AX115 Is Used
Heavy-Duty Pressing
Applies 6136 N of force at just 0.5 MPa for assembling bearings or stamping rigid components.
Pallet Diverting
Drives robust guide rails on heavy conveyor lines to shift large pallets efficiently.
Injection Molding
Performs core pulling or heavy mold actuation where a SUS420J2 rod prevents corrosion.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX115 the Right Cylinder?
Selecting this 125 mm bore cylinder is ideal when 100 mm (3927 N at 0.5 MPa) lacks the necessary power, but the massive 160 mm (10053 N) is physically oversized. For applications requiring secure load holding during a pressure drop or exhaust, the standard SAI will drift; consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock.
As a true ISO 15552 profile cylinder, it offers a direct drop-in replacement for other ISO 15552 interface cylinders. Ensure your system specifies PT tapered ports, appropriate mounting accessories (like CA clevis or TC trunnion), and verify if a magnet (-S) is needed for CMSE or DMSE sensor switches.
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 SAI125AX115 FAQ
At 0.5 MPa, it provides 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, it is built to the ISO 15552 profile standard, making its mounting interface dimensionally interchangeable with other ISO 15552 cylinders.
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