Airtac SAI125 Standard Air Cylinder SAI125X230S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X230S 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 SAI125X230S
The AirTAC SAI125X230-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a push force of 6136 N at 0.5 MPa, this 125 mm bore unit is built to handle substantial loads across its 230 mm stroke. The extruded aluminum barrel design eliminates tie-rods, providing a clean profile that drops directly into standardized ISO 15552 mounting interfaces.
Configured with a standard carbon steel piston rod and a magnetic piston for position detection, this model seamlessly integrates with CMSE and DMSE sensor switches fitted into the dual side grooves. The pneumatic ports feature PT tapered threading, and adjustable air cushions at both ends absorb end-of-stroke impact. For elevated thermal environments, the standard TPU seals can be swapped for Viton (H) or NBR (N) alternatives.
Airtac SAI125 Standard Air Cylinder SAI125X230S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X230S |
|---|---|
| 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 SAI125X230S
| 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 SAI125X230S Is Used
Heavy Stamping
Provides the robust 6136 N push force required to actuate large mechanical presses and form rigid metal components securely.
Injection Molding Extraction
Utilizes the 230 mm stroke and magnetic piston feedback to reliably extract heavy molded parts from deep industrial tooling cavities.
Pallet Handling
Drives heavy pallets along high-capacity conveyor lines, using adjustable air cushions to stop fully loaded assemblies smoothly.
Is the Airtac SAI125 Standard Air Cylinder SAI125X230S the Right Cylinder?
Selecting this 125 mm bore is ideal when an 80 mm cylinder falls short, offering a significant jump from 2513 N to 6136 N of push force at 0.5 MPa. The 230 mm stroke provides ample travel for mid-range actuation without requiring the structural reinforcement mandatory for longer extensions. Because the stroke is under 300 mm, rod-bearing bending stress is minimized compared to extended versions, though external guides are still recommended if absorbing heavy lateral loads.
This cylinder relies on continuous air pressure to maintain its position; standard air cushions only decelerate the piston at stroke ends and do not function as brakes. If your fixture demands fail-safe load holding upon pressure loss, specify the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder. For direct replacements, match the 125 mm bore, 230 mm stroke, PT port thread, and the required mounting accessory alongside the -S magnet designation.
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 SAI125X230S FAQ
At an operating pressure of 0.5 MPa, 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 reaches 8590 N.
Yes, the SAI125X230-S is dimensionally interchangeable per ISO 15552. You can drop it into existing setups by matching the 125 mm bore, 230 mm stroke, PT port, and mounting hardware, ensuring the -S magnet matches your sensor requirements.
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