Airtac SAI125 Standard Air Cylinder SAI125X175S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X175S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 175mm 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
- Stroke175 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X175S
The AirTAC SAI125X175-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. 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 moving substantial loads over a 175 mm stroke. The extruded aluminum barrel design omits tie-rods, ensuring a clean exterior that resists debris accumulation.
Equipped with a magnet (-S), this model directly supports CMSE and DMSE sensor switches via the dual grooves machined into the barrel. It utilizes a standard carbon steel piston rod and features PT tapered port threads. For environments requiring elevated thermal resistance, the standard TPU seals can be swapped for Viton (H) or NBR (N) alternatives.
Airtac SAI125 Standard Air Cylinder SAI125X175S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X175S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 175 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 SAI125X175S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×175 | 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 SAI125X175S Is Used
Heavy Stamping
Provides the necessary 6136 N of push force at 0.5 MPa to actuate large mechanical presses and form rigid metal components.
Injection Molding Extraction
Utilizes the integrated magnet and 175 mm stroke to reliably detect position and extract heavy molded parts from industrial tooling.
Pallet Diversion
Handles the robust kinetic requirements of diverting fully loaded pallets along high-throughput material handling conveyors.
Is the Airtac SAI125 Standard Air Cylinder SAI125X175S the Right Cylinder?
Selecting this 125 mm bore cylinder is appropriate when your application demands upward of 6000 N of thrust at 0.5 MPa. If your load requirements are lighter, stepping down to an 80 mm bore yields 2513 N of push force, conserving valuable air volume. Conversely, moving to a 160 mm bore provides 10053 N for significantly heavier payloads.
Because this is a standard double-acting actuator, it relies entirely on continuous air pressure to maintain its position; the integrated adjustable air cushions only decelerate the piston at stroke ends and do not function as a braking mechanism. If your machinery experiences a sudden loss of air pressure, the rod will drift, so consider the SAIL variant for pneumatic locking or the BSAI for clamp-locking. As a dimensionally interchangeable ISO 15552 unit, it serves as a direct drop-in replacement for other standard profile cylinders with matching 125 mm bore, 175 mm stroke, G1/2 ports, and compatible FA or LB 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 SAI125X175S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder generates a push force of 6136 N and a pull force of 5734 N. If pressure is increased to 0.7 MPa, the push force rises to 8590 N.
Yes, the SAI125X175-S is dimensionally interchangeable per ISO 15552 standards. You can drop it directly into existing mounts designed for standard 125 mm bore profile cylinders with G1/2 ports.
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