Airtac SAI125 Standard Air Cylinder SAI125AX90S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX90S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 90mm 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
- Stroke90 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX90S
The AirTAC SAI125X90-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 6136 N push force at 0.5 MPa, this 125 mm bore unit is tailored for high-load handling. The 90 mm stroke provides rapid, compact actuation for short-travel clamping or pressing tasks.
This specific configuration includes a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance in humid manufacturing environments. The integrated magnet (-S) enables seamless position feedback using CMSE or DMSE sensors housed within the dual-side extruded aluminum barrel grooves. Fluid ports feature a PT tapered thread type to ensure a metal-to-metal mechanical seal during high-pressure operation.
Airtac SAI125 Standard Air Cylinder SAI125AX90S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX90S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 90 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 SAI125AX90S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×90 | 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 SAI125AX90S Is Used
Heavy-Duty Stamping
Provides the 6136 N force at 0.5 MPa required for short-stroke metal forming, riveting, and impact stamping tasks.
Automotive Component Pressing
Ideal for pressing bearings or bushings into automotive assemblies, utilizing the 90 mm stroke for rapid, high-force insertion.
Pallet Lift Gates
Generates sufficient thrust to elevate loaded pallets in distribution hubs, with the -S magnet enabling precise end-of-stroke positioning.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX90S the Right Cylinder?
Select this 125 mm bore when 100 mm (3927 N at 0.5 MPa) lacks the necessary thrust for heavy lifting or pressing. If your application requires less than 6000 N, stepping down to the 100 mm bore can optimize pneumatic efficiency and reduce compressed air consumption. The 90 mm stroke is optimal for short-travel tasks without requiring a long guide.
As a true ISO 15552 profile cylinder, it serves as a drop-in replacement for other ISO 15552 cylinders by matching the exact 125 mm mounting interface, PT G1/2 ports, and standard mounting accessories. If the machinery must hold a load vertically without continuous air pressure, the standard SAI will drift; you should specify the SAIL variant with an air-released lock or use an external rod lock.
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 SAI125AX90S FAQ
At 0.5 MPa, it provides 6136 N of push force and 5734 N of pull force. If you operate at 0.7 MPa, the push force increases to 8590 N.
Yes. It is a genuine ISO 15552 profile cylinder, meaning its mounting interface, port sizes, and overall envelope dimensions are interchangeable with any standard ISO 15552 cylinder of the same 125 mm bore.
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