Airtac SAI125 Standard Air Cylinder SAI125AX150
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX150 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 150mm 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
- Stroke150 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX150
The AirTAC SAI125X150 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It generates a substantial 6136 N of push force and 5734 N of pull force at 0.5 MPa, making it well-suited for high-load pressing and clamping operations. This 150 mm stroke length provides ample travel for substantial actuation distances.
Built with a durable extruded aluminum barrel, this model omits traditional tie-rods for a sleeker profile while maintaining strict ISO 15552 mounting interchangeability. For this specific configuration, the piston rod is constructed from SUS420J2 stainless steel (code A) for enhanced corrosion resistance, and it features a PT tapered port thread. Note that because a magnet is not specified (-S omitted), it will not directly support reed or solid-state sensors without modification.
Airtac SAI125 Standard Air Cylinder SAI125AX150 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX150 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 150 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 SAI125AX150
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×150 | 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 SAI125AX150 Is Used
Heavy-Duty Stamping
Ideal for metal forming and stamping stations where the 6136 N push force at 0.5 MPa is required to deform or secure heavy materials.
Automotive Assembly
Provides the robust actuation needed to position heavy chassis components or apply structural adhesives during vehicle production.
Pallet Handling
Excels in logistics conveyor systems for lifting, indexing, and redirecting fully loaded pallets through automated distribution centers.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX150 the Right Cylinder?
Selecting this 125 mm bore cylinder is appropriate when your application requires forces between 5734 N and 6136 N at 0.5 MPa. If your load requirements are lower, stepping down to an 80 mm bore yields 2268 N of pull force, significantly reducing air consumption. Conversely, if you need extreme force, the 160 mm bore offers 9425 N of pull force at 0.5 MPa.
Because this is a standard double-acting cylinder, it relies on continuous air pressure to maintain its position. If the air supply is lost or exhausted, the piston will drift; for fail-safe load holding, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder. To ensure seamless replacement, verify the 125 mm bore, 150 mm stroke, PT G1/2 port, and required mounting accessories such as the CA clevis 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 SAI125AX150 FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. If operating pressure is increased to 0.7 MPa, the push force rises to 8590 N.
Yes, the SAI125X150 is a genuine ISO 15552 profile cylinder, meaning its mounting dimensions are fully interchangeable with other ISO 15552 compliant cylinders, provided you match the G1/2 port and accessories.
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