Airtac SAI125 Standard Air Cylinder SAI125X105
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X105 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 105mm 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
- Stroke105 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X105
The AirTAC SAI125X105 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty operations, delivering a substantial push force of 6136 N at 0.5 MPa. Its 105 mm stroke is a non-standard, made-to-order length tailored for specific mid-range travel requirements. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that simplifies the mounting of accessories and sensor tracks.
This specific configuration features a standard carbon steel piston rod and PT tapered port threads. Because it lacks the optional -S magnet, it is optimized for purely mechanical actuation rather than position sensing. For applications requiring end-position holding under zero pressure, consider the SAIL locking variant instead of relying on the standard adjustable air cushions.
Airtac SAI125 Standard Air Cylinder SAI125X105 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X105 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 105 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 SAI125X105
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×105 | 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 SAI125X105 Is Used
Heavy-Duty Pressing
Provides 6136 N of thrust at 0.5 MPa for assembling bearings or forming robust metal components.
Automated Clamping
Secures large workpieces during machining operations where high holding rigidity is essential.
Pallet Diverting
Drives heavy structural diverters or lifting mechanisms on high-capacity material transport lines.
Is the Airtac SAI125 Standard Air Cylinder SAI125X105 the Right Cylinder?
Selecting this 125 mm bore is appropriate when 0.5 MPa push forces of 6136 N are required; stepping down to an 80 mm bore yields 2513 N, while upgrading to a 160 mm bore provides 10053 N. The 105 mm made-to-order stroke is relatively short, keeping the rod bearing bending stress low without needing external guides.
As a true ISO 15552 profile cylinder, it serves as a direct dimensional drop-in replacement for other ISO 15552 cylinders. Ensure your setup matches the G1/2 port, M27x2 rod thread, and pairs with appropriate ISO mounting accessories like FA flanges or TC trunnions.
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 SAI125X105 FAQ
At a 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. It can reach up to 8590 N push at 0.7 MPa.
Yes, the SAI125X105 is a genuine ISO 15552 profile cylinder. Its standardized mounting dimensions allow it to serve as a drop-in replacement for other ISO 15552 cylinders with matching G1/2 ports and M27x2 rod threads.
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