Airtac SAI125 Standard Air Cylinder SAI125AX130S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX130S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 130mm 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
- Stroke130 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX130S
The AirTAC SAI125X130-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 6136 N push force at 0.5 MPa, this 125 mm bore unit is built to handle substantial loads across its 130 mm stroke. The extruded aluminum barrel design eliminates tie-rods, providing a rigid yet streamlined profile that drops directly into standard ISO 15552 mounting interfaces.
This specific configuration includes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. Equipped with a magnet (-S), it seamlessly integrates with CMSE and DMSE sensor switches seated in the dual side grooves. Fluid compatibility is limited to 40 um filtered air, operating efficiently between 0.15 and 1.0 MPa.
Airtac SAI125 Standard Air Cylinder SAI125AX130S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX130S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 130 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 SAI125AX130S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×130 | 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 SAI125AX130S Is Used
Heavy Stamping
Provides the high thrust necessary for pressing and stamping rigid metal components in automated fabrication lines.
Injection Molding
Rugged 125 mm bore handles the substantial forces required to actuate heavy mold cores and eject large finished parts.
Pallet Handling
Drives robust lifting and positioning mechanisms for heavy pallets in high-throughput distribution centers.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX130S the Right Cylinder?
Selecting this 125 mm bore makes sense when a 100 mm cylinder falls short; stepping up from a 100 mm bore increases your 0.5 MPa push thrust from 3927 N to 6136 N. If your application requires less force, dropping to an 80 mm bore yields 2513 N at 0.5 MPa. Because the stroke is 130 mm, side-load stress on the rod bearing is moderate, but always ensure the load is guided to prevent premature seal wear.
This model features PT tapered port threads and operates at a maximum speed of 30-500 mm/s. Remember that standard SAI cylinders rely on adjustable air cushions at both ends to decelerate the piston, but they do not hold loads pneumatically. If your system loses air pressure, the rod will drift; for fail-safe load holding, consider the SAIL or BSAI locking variants instead of a standard SAI.
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 SAI125AX130S FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 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 SAI125X130-S is dimensionally interchangeable per ISO 15552. It serves as a drop-in replacement for other ISO 15552 profile cylinders, matching standard mounting dimensions without claiming brand equivalence.
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