Airtac SAI125 Standard Air Cylinder SAI125BX110S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125BX110S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 110mm 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
- Stroke110 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125BX110S
The AirTAC SAI125X110-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust push force of 8590 N at 0.5 MPa and a pull force of 5734 N, this 125mm bore unit handles substantial loads with ease. The 110mm stroke provides the precise mid-range extension needed for high-impact pressing and heavy lifting tasks.
This specific configuration is equipped with a SUS304 stainless steel rod for superior corrosion resistance in harsh environments. It includes a built-in magnet (-S) for seamless integration with CMSE and DMSE sensor switches along the dual grooves of the extruded aluminum barrel. Fluid ports feature PT tapered threads, and the adjustable air cushions at both ends ensure smooth deceleration of large moving masses.
Airtac SAI125 Standard Air Cylinder SAI125BX110S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125BX110S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 110 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 SAI125BX110S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×110 | 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 SAI125BX110S Is Used
Heavy-Duty Stamping
Provides the 8590 N force necessary to form and stamp thick metal components in automated fabrication lines.
Injection Molding Extraction
Utilizes the SUS304 rod and robust pull force to reliably extract heavy molded parts from high-temperature environments.
Pallet Handling
Drives heavy payload manipulation and pallet lifting stations where mid-stroke extension and high thrust are critical.
Is the Airtac SAI125 Standard Air Cylinder SAI125BX110S the Right Cylinder?
Selecting this 125mm bore is ideal when a 100mm bore (providing 5497 N push at 0.5 MPa) lacks the necessary thrust, but a 160mm bore is physically too large for the machine envelope. The 110mm stroke offers compact extension while maintaining the high force output required for rigorous industrial processes.
Because the standard SAI profile cylinder relies on air pressure to maintain its position, it will drift if pressure is lost or exhausted. For applications requiring strict load holding without live air pressure, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder. For exact mounting interchangeability, match the 125mm bore, 110mm stroke, PT G1/2 ports, and select appropriate ISO 15552 accessories like FA flanges or TC trunnions.
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 SAI125BX110S FAQ
At 0.5 MPa operating pressure, this 125mm bore cylinder provides a push force of 8590 N and a pull force of 5734 N. At 0.7 MPa, the push force increases to 11045 N.
Yes, the SAI125X110-S is dimensionally interchangeable per ISO 15552. You can drop it into existing setups matching the 125mm bore, 110mm stroke, and G1/2 port size without modifying the mounting interface.
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