Airtac SAI125 Standard Air Cylinder SAI125AX10
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 10mm 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
- Stroke10 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX10
The AirTAC SAI125X10 is a double-acting ISO 15552 profile cylinder featuring a 125mm bore and an ultra-short 10mm stroke. It provides a robust push force of 6136N at 0.5 MPa, making it highly effective for high-impact clamping and pressing over very tight travel distances. The extruded aluminum barrel design omits traditional tie rods, presenting a clean exterior that integrates seamlessly into modern automated machinery.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A), which offers superior resistance to moisture and minor chemical splash compared to standard carbon steel. It uses PT tapered port threading and operates without a magnet. If your application requires position detection, you can specify the -S option to equip the barrel's dual sensor grooves with CMSE or DMSE switches.
Airtac SAI125 Standard Air Cylinder SAI125AX10 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 10 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 SAI125AX10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×10 | 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 SAI125AX10 Is Used
Short-Stroke Staking
Delivers 6136N of impact force for staking or riveting components in a highly constrained 10mm travel envelope.
Heavy-Duty Clamping
Generates substantial clamping pressure to secure heavy workpieces during machining operations without requiring long rod extension.
Ejector Mechanisms
Provides a rapid, high-force ejection pulse for parts within compact assembly cells where space prevents standard stroke lengths.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX10 the Right Cylinder?
Selecting this 125mm bore over the neighboring 100mm size upgrades your thrust from 3927N to 6136N at 0.5 MPa, providing massive holding power for minimal travel. Conversely, dropping down to the 100mm bore reduces the physical footprint and port size to G1/2 if 3927N is sufficient. Because the 10mm stroke is exceptionally short, side-load bending on the rod bearing is physically negligible, though external guides are still recommended if the load is heavily asymmetrical.
As a standard double-acting actuator, this cylinder relies on live air pressure to maintain its position. If pneumatic supply is lost or the directional valve is centered, the piston will drift and cannot hold a load. For dead-drop prevention, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder. This model is dimensionally interchangeable per ISO 15552, serving as a direct drop-in replacement for other ISO 15552 profile cylinders.
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 SAI125AX10 FAQ
At an operating pressure of 0.5 MPa, this 125mm bore cylinder generates a push force of 6136N and a pull force of 5734N. If pressure is increased to 0.7 MPa, the push force reaches 8590N.
Yes, the SAI125X10 is a genuine ISO 15552 profile cylinder, meaning its mounting interface and physical envelope dimensions are standardized. It is fully interchangeable with other ISO 15552 cylinders of the same bore and stroke.
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