Airtac SAI125 Standard Air Cylinder SAI125X180
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X180 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 SAI125X180
The AirTAC SAI125X180 is a double-acting profile cylinder featuring a 125mm bore and 180mm stroke. It delivers a robust 6136N push force and 5734N pull force at 0.5MPa, making it well-suited for heavy-duty industrial pressing and lifting tasks. As a genuine ISO 15552 extruded aluminum barrel design, it provides a dimensionally interchangeable mounting interface for seamless machinery integration.
This specific configuration features a standard carbon steel piston rod and PT tapered port threads. Because it lacks the -S magnet option, it is optimized for pure actuation rather than position sensing. If your assembly requires heat resistance, the seal options can be upgraded from standard TPU to Viton for high-temperature environments.
Airtac SAI125 Standard Air Cylinder SAI125X180 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X180 |
|---|---|
| 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 SAI125X180
| 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 SAI125X180 Is Used
Heavy-Duty Stamping
Provides the necessary 6136N push force at 0.5MPa for securely stamping and forming thick metal components in automated fabrication lines.
Pallet Lifting
Generates enough lifting power to elevate heavy industrial pallets and machinery bases during material transfer processes.
Injection Mold Clamping
Applies consistent holding pressure for large mold assemblies, utilizing the 125mm bore's high thrust capacity and PT porting.
Is the Airtac SAI125 Standard Air Cylinder SAI125X180 the Right Cylinder?
Selecting this 125mm bore provides 6136N of thrust at 0.5MPa, offering a substantial power increase over the 80mm bore which yields 2513N. If your application demands even higher force, stepping up to the 160mm bore provides 10053N. The 180mm stroke is a standard made-to-order dimension, falling safely below the 1500mm maximum limit for this bore size.
Because the stroke is under 300mm, rod-bearing bending stress is less critical here, though side loads should still be minimized. Note that the standard SAI does not hold its position when air pressure is removed; for suspended loads requiring fail-safe holding, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. To match this cylinder for ISO 15552 replacement, verify the 180mm stroke, G1/2 port, and compatible mounting accessories like FA flange or TC trunnion.
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 SAI125X180 FAQ
At an operating pressure of 0.5MPa, the SAI125X180 cylinder provides a push force of 6136N and a pull force of 5734N. At 0.7MPa, the push force increases to 8590N.
Yes, the SAI125X180 is a profile cylinder with a standardized ISO 15552 mounting interface, making it dimensionally interchangeable with other ISO 15552 cylinders. Always verify the G1/2 port and 180mm stroke match your existing layout.
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