Airtac SAI125 Standard Air Cylinder SAI125AX125
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX125 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm 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.
- BoreØ125 mm
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX125
The AirTAC SAI125X125 is a double-acting ISO 15552 profile cylinder featuring a 125mm bore and 125mm stroke. It delivers a robust push force of 6136 N and a pull force of 5734 N at 0.5 MPa, making it well-suited for heavy-duty industrial handling tasks.
This variant is configured with a SUS420J2 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for easy switch mounting, and the adjustable air cushions at both ends ensure smooth deceleration of heavy masses.
Airtac SAI125 Standard Air Cylinder SAI125AX125 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX125 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 125 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 SAI125AX125
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | 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 SAI125 Standard Air Cylinder SAI125AX125 Is Used
Automotive Stamping
Handles heavy metal panels and provides the 6136 N push force required to position stamping blanks securely in automotive assembly lines.
Plastic Injection Molding
Utilizes the 125mm bore power to extract dense molded parts from heavy industrial injection molds, leveraging the SUS420J2 rod for wear resistance.
Pallet Handling
Pushes or lifts loaded pallets in high-capacity packaging cells, benefiting from the adjustable cushioning to stop heavy loads smoothly.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX125 the Right Cylinder?
Select this 125mm bore model when an application requires over 6000 N of push force at 0.5 MPa, or step down to the 80mm bore if your load only requires 2513 N. For operations that need to securely hold a load without continuous air pressure, pair this cylinder with an external pilot-operated check valve or switch to the AirTAC SAIL locking variant.
As a dimensionally interchangeable ISO 15552 profile cylinder, it serves as a direct drop-in replacement for other ISO 15552 standard cylinders. Ensure your setup matches the G1/2 port size, M27x2 rod thread, and select appropriate mounting accessories like TC trunnion or CA clevis brackets.
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 SAI125AX125 FAQ
At 0.5 MPa, the SAI125X125 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, the SAI125X125 is a genuine AirTAC profile cylinder built to ISO 15552 mounting interface standards, making it dimensionally interchangeable with other ISO 15552 cylinders of the same bore size.
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