Airtac SAI125 Standard Air Cylinder SAI125X470S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X470S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 470mm 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
- Stroke470 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X470S
The AirTAC SAI125X470-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It generates a substantial 6136 N of push force at 0.5 MPa, extending a 470 mm stroke to drive demanding loads. This stroke length is well-suited for large presses and automated material handling where significant travel is required.
Equipped with a magnet for proximity sensing, the extruded aluminum barrel features sensor grooves on both sides for flexible CMSE or DMSE switch mounting. The standard carbon steel piston rod provides robust durability, while the adjustable air cushions at both ends ensure smooth deceleration of heavy masses within the 30-500 mm/s speed range.
Airtac SAI125 Standard Air Cylinder SAI125X470S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X470S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 470 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 SAI125X470S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×470 | 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 SAI125X470S Is Used
Heavy-Duty Stamping
Provides the robust 6136 N push force required to actuate large mechanical presses and form heavy-gauge metal components over a 470 mm travel.
Automotive Assembly
Drives large-frame jigs and positioning gates on vehicle production lines, utilizing the integrated magnet for end-of-stroke CMSE sensor feedback.
Bulk Material Handling
Actuates heavy diverter arms and large-scale sorting gates in packaging facilities, relying on adjustable air cushions to absorb kinetic energy.
Is the Airtac SAI125 Standard Air Cylinder SAI125X470S the Right Cylinder?
Selecting this 125 mm bore over the smaller 100 mm variant upgrades your thrust from 3927 N to 6136 N at 0.5 MPa, stepping up to a G1/2 port for higher flow demands. If your application requires less force, the 100 mm bore offers a lighter footprint. Because the 470 mm stroke creates an extended unsupported rod, external guides are strongly recommended to prevent rod-bearing bending under side loads.
This model is a dimensionally interchangeable drop-in replacement per ISO 15552 standards, matching bore, stroke, PT port, and mounting accessory interfaces. Note that the standard SAI does not hold its position if air pressure is lost; for vertical loads requiring fail-safe holding, consider the SAIL or BSAI clamp-lock variants.
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 SAI125X470S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. It can reach up to 8590 N push force at 0.7 MPa.
Yes, the SAI125X470-S is a genuine ISO 15552 profile cylinder. Its standardized mounting dimensions and G1/2 PT port make it a drop-in replacement for other ISO 15552 cylinders.
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