Airtac SAI125 Standard Air Cylinder SAI125AX80S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX80S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 80mm 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
- Stroke80 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX80S
The AirTAC SAI125X80-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty handling. It provides a robust push force of 6136 N and a pull force of 5734 N at 0.5 MPa, making it well-suited for short 80 mm stroke movements requiring immense power. The extruded aluminum barrel design ensures rigid performance without tie-rods.
This specific configuration includes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid environments. Equipped with a built-in magnet (-S), it integrates seamlessly with CMSE and DMSE sensor switches mounted in the dual side grooves. Fluid ports feature PT tapered threads, and adjustable air cushions at both ends absorb impact at stroke endpoints.
Airtac SAI125 Standard Air Cylinder SAI125AX80S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX80S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 80 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 SAI125AX80S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×80 | 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 SAI125AX80S Is Used
Heavy-Duty Pressing
Applies 6136 N of pushing force at 0.5 MPa for seating bearings, stamping small components, or forming light-gauge materials within an 80 mm stroke.
Industrial Clamping
Secures large fabricated weldments or heavy cast parts during machining operations, utilizing its 5734 N pull force to hold rigidly.
Pallet Diverting
Actuates heavy structural stops or diverter arms on high-mass conveyor lines where a shorter 80 mm stroke provides fast cycling.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX80S the Right Cylinder?
Select this 125 mm bore model when 80 mm of travel is sufficient but your application demands high thrust, such as pressing or heavy clamping. If your force requirements are lower, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, significantly reducing air consumption. For operations needing true position holding without constant air pressure, the standard SAI will drift; consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder.
Because this is a genuine ISO 15552 profile cylinder, it offers a dimensionally interchangeable mounting interface for direct replacement of other ISO 15552 cylinders. To match this exact unit, specify an 80 mm stroke, G1/2 port, PT thread type, and the -S magnet option. Compatible mountings include LB foot brackets, FA flanges, and TC trunnion styles.
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 SAI125AX80S FAQ
At an operating pressure of 0.5 MPa, this 125 mm bore cylinder generates a push force of 6136 N and a pull force of 5734 N. If operated at 0.7 MPa, the push force increases to 8590 N.
Yes, the SAI125X80-S is dimensionally interchangeable per ISO 15552 standards. It serves as a drop-in replacement for other ISO 15552 profile cylinders with matching 125 mm bore and 80 mm stroke dimensions.
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