Airtac SAI125 Standard Air Cylinder SAI125AX180
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX180 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 180mm 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
- Stroke180 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX180
The AirTAC SAI125X180 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It provides a robust push force of 6136 N and pull force of 5734 N at 0.5 MPa, making it well-suited for high-thrust actuation tasks over its 180 mm stroke.
This model features a SUS420J2 stainless steel piston rod (material code A) for superior corrosion resistance in harsh environments. It includes PT tapered port threads, and the extruded aluminum barrel offers dual sensor grooves for flexible switch placement.
Airtac SAI125 Standard Air Cylinder SAI125AX180 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX180 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 180 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 SAI125AX180
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×180 | 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 SAI125AX180 Is Used
Heavy Metal Stamping
Provides the necessary 6136 N of thrust at 0.5 MPa to operate mechanical stamping presses and heavy-duty forming dies reliably.
Automotive Assembly Jigs
Drives large clamping arms and heavy positioning fixtures on automotive production lines where high force and rigid profile construction are required.
Pallet Diverters
Actuates heavy-duty diverter gates and sorting mechanisms handling loaded pallets, utilizing the 180 mm stroke to clear wide conveyor lanes.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX180 the Right Cylinder?
Choose this 125 mm bore when 100 mm (3927 N push at 0.5 MPa) is insufficient for your load requirements. If your application exceeds 8590 N at 0.7 MPa, consider stepping up to the 160 mm bore. Because this is a 180 mm stroke, side-load stress on the rod bearing is moderate but manageable; ensure proper alignment to prevent premature wear.
This standard cylinder does not hold its load if air pressure drops; the piston will drift when exhaust or valve centering occurs. For applications requiring fail-safe position holding without live pressure, select the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. This model is dimensionally interchangeable per ISO 15552, featuring a G1/2 port, M27x2 rod thread, and standard mounting accessories like TC trunnion or FA flange.
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 SAI125AX180 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. At 0.7 MPa, the push force increases to 8590 N.
Yes, the SAI125X180 is a genuine ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 compliant cylinders. It uses a G1/2 port and M27x2 rod thread.
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