Airtac SAI125 Standard Air Cylinder SAI125BX230
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125BX230 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 230mm 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
- Stroke230 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125BX230
The AirTAC SAI125X230 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It delivers a substantial 6136 N of push force at 0.5 MPa, extending 230 mm to move sizable masses. The extruded aluminum barrel design omits traditional tie rods, providing a clean exterior that drops right into standardized ISO 15552 mounting interfaces.
This specific configuration features a SUS304 stainless steel rod for superior corrosion resistance in wet or chemically active settings. Fluid ports utilize PT tapered threads. Since no magnet is specified, position sensing via the dual side barrel grooves requires adding an -S option later if CMSE or DMSE switches are needed.
Airtac SAI125 Standard Air Cylinder SAI125BX230 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125BX230 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 230 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 SAI125BX230
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×230 | 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 SAI125BX230 Is Used
Heavy Metal Stamping
Provides the 6136 N push force at 0.5 MPa needed to actuate large press dies and form thick sheet metal reliably.
Bulk Material Diverting
Drives heavy-duty diverter arms on high-throughput aggregate or packaging lines where a 230 mm stroke clears wide belts.
Large Assembly Pressing
Applies consistent downward pressure to seat large bearings or housings into automotive subassemblies.
Is the Airtac SAI125 Standard Air Cylinder SAI125BX230 the Right Cylinder?
Select this 125 mm bore when 80 mm (2513 N push at 0.5 MPa) lacks the thrust for high-inertia loads, but a 160 mm bore would be physical overkill. The 230 mm stroke is well below the 1500 mm maximum, keeping the standard rod bearing stress within normal limits. For applications needing fail-safe load holding upon air loss, note that the adjustable air cushions only decelerate the piston at stroke ends; pair this cylinder with an external pilot-operated check valve or specify the SAIL lock variant for true position holding.
As a dimensionally interchangeable ISO 15552 cylinder, it replaces any standard profile cylinder of matching 125 mm bore, 230 mm stroke, PT G1/2 ports, and matching FA flange or LB foot mounts. The double-acting operation ensures reliable thrust in both extend and retract directions.
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 SAI125BX230 FAQ
At a 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 SAI125X230 is a genuine AirTac profile cylinder built to exact ISO 15552 mounting dimensions. It serves as a direct drop-in replacement for any standard ISO 15552 cylinder with matching 125 mm bore and 230 mm stroke specifications.
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