Airtac SAI125 Standard Air Cylinder SAI125AX230
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX230 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 230mm 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
- Stroke230 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX230
The AirTAC SAI125X230 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust push force of 6136 N at 0.5 MPa, this 125 mm bore unit utilizes a 230 mm stroke to power demanding industrial tasks. Its extruded aluminum barrel design omits tie-rods, providing a clean exterior that simplifies cleaning and sensor placement.
This specific configuration is built with an SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid or mildly chemically washed environments. It features PT tapered port threads and operates without a magnet. For applications requiring position holding without continuous air pressure, consider the SAIL pneumatic lock variant.
Airtac SAI125 Standard Air Cylinder SAI125AX230 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX230 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 230 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 SAI125AX230
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×230 | 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 SAI125AX230 Is Used
Heavy-Duty Stamping
Provides the necessary 6136 N push force at 0.5 MPa to actuate large forming dies and press assemblies in metal fabrication lines.
Pallet Diverting
Drives robust routing gates and heavy-load diverters on automated conveyor systems handling bulk materials or large pallets.
Injection Molding Extraction
Utilizes the 230 mm stroke to extract heavy molded parts from deep injection molding machinery, benefiting from the SUS420J2 rod's durability.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX230 the Right Cylinder?
Selecting this 125 mm bore cylinder is appropriate when your application requires substantial thrust that smaller bores cannot provide, such as stepping down from a 160 mm bore (which yields 10053 N at 0.5 MPa) to save space and air consumption. The 230 mm stroke offers ample extension for medium-travel lifting and indexing. Because this is a double-acting actuator, it relies on air pressure for both directions of travel.
If your machinery loses air pressure or the valve is centered, the piston will drift and cannot hold a load vertically. To achieve true positive holding in fail-safe scenarios, specify the SAIL variant with an air-released lock, or integrate an external pilot-operated check valve. As a dimensionally interchangeable ISO 15552 profile cylinder, it serves as a drop-in replacement for other standard 125 mm bore cylinders with matching 230 mm stroke, G1/2 ports, and standard mounting accessories like the TC trunnion or CA clevis.
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 SAI125AX230 FAQ
At an operating pressure of 0.5 MPa, the SAI125X230 cylinder 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 SAI125X230 is a true ISO 15552 profile cylinder. Its standardized mounting dimensions, G1/2 port size, and 230 mm stroke make it dimensionally interchangeable with other ISO 15552 compliant cylinders.
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