Airtac SAI125 Standard Air Cylinder SAI125X180S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X180S 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 SAI125X180S
The AirTAC SAI125X180-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 6136 N of push force at 0.5 MPa, this 125 mm bore, 180 mm stroke actuator handles substantial loads with ease. The integrated -S magnet enables direct mounting of CMSE or DMSE reed switches along the extruded aluminum barrel.
For demanding environments, you can configure the standard carbon steel rod with alternative seal materials. While standard TPU seals suit general use, Viton (H) seals are available for high-temperature applications up to +70 C. This genuine AirTAC component ensures dimensionally interchangeable drop-in replacement for any ISO 15552 mounting footprint.
Airtac SAI125 Standard Air Cylinder SAI125X180S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X180S |
|---|---|
| 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 SAI125X180S
| 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 SAI125X180S Is Used
Heavy Stamping
Provides the 6136 N push force required to actuate large mechanical presses and form heavy-gauge metal components.
Injection Molding Extraction
Delivers robust pulling power to extract dense molded parts from industrial tooling, utilizing its 180 mm stroke.
Pallet Handling
Drives heavy-duty lift and transfer mechanisms in automated distribution centers where high thrust is mandatory.
Is the Airtac SAI125 Standard Air Cylinder SAI125X180S the Right Cylinder?
Select this 125 mm bore model when 80 mm cylinders (providing 2513 N at 0.5 MPa) lack the thrust for heavy lifting, but you want to avoid the larger 160 mm footprint. The 180 mm stroke provides ample travel without requiring extensive side-load management, though external guides are always recommended for rigid load handling.
Because this is a standard double-acting cylinder, it does not hold position if air pressure drops. For vertical loads requiring fail-safe holding, specify the SAIL variant with an air-released lock or use an external pilot-operated check valve. This unit features PT tapered port threads (G1/2) and is fully compatible with standard FA, FB, and TC mounting accessories.
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 SAI125X180S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
Yes, the SAI125X180-S is dimensionally interchangeable per ISO 15552 standards. You can drop it into existing ISO 15552 mounting interfaces without modifying the fixture.
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