Airtac SAI125 Standard Air Cylinder SAI125BX95S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125BX95S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 95mm 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
- Stroke95 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125BX95S
The AirTAC SAI125X95-S is a double-acting ISO 15552 profile cylinder built for heavy-duty automation. It provides a robust push force of 6136 N and a pull force of 5734 N at 0.5 MPa, making it highly effective for moving substantial masses. The 95 mm stroke is optimal for medium-travel clamping, pressing, and heavy lifting tasks.
This specific configuration includes a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in harsh environments. It is equipped with a magnetic piston (-S) for use with CMSE and DMSE series sensor switches, which fit directly into the dual-side sensor grooves of the extruded aluminum barrel. Fluid ports feature PT tapered threading.
Airtac SAI125 Standard Air Cylinder SAI125BX95S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125BX95S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 95 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 SAI125BX95S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×95 | 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 SAI125BX95S Is Used
Heavy-Duty Pressing
Ideal for applying high tonnage in automated stamping, forming, and riveting lines where the 6136 N output at 0.5 MPa is required.
Automotive Assembly
Drives heavy jigs and fixtures on vehicle production lines, utilizing the SUS304 rod to resist shop-floor moisture and coolants.
Pallet Handling
Provides the necessary push and pull force to lift, shift, and position fully loaded pallets in high-throughput distribution centers.
Is the Airtac SAI125 Standard Air Cylinder SAI125BX95S the Right Cylinder?
Selecting this 125 mm bore cylinder is appropriate when the 80 mm bore class (providing 2513 N push at 0.5 MPa) is insufficient for your load requirements, but you want to avoid stepping up to the massive 160 mm bore. Because this unit is a standard double-acting actuator, it will not hold a load in place if air pressure is lost or the valve is centered; for fail-safe load holding, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants.
As a true ISO 15552 profile cylinder, it offers a dimensionally interchangeable mounting interface, allowing it to serve as a drop-in replacement for other ISO 15552 cylinders. When upgrading your system, match the 125 mm bore, 95 mm stroke, PT G1/2 port, and mounting accessories (such as LB foot or TC trunnion) to ensure a seamless installation.
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 SAI125BX95S 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 SAI125X95-S is a genuine ISO 15552 profile cylinder. Its standardized mounting dimensions make it fully interchangeable with other ISO 15552 cylinders of the same bore size, provided you match the PT G1/2 port and mounting accessories.
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