
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX110 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.
The AirTAC SAI125X110 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It delivers a robust push force of 6136 N at 0.5 MPa, scaling up to 8590 N at 0.7 MPa, making it well-suited for high-thrust operations over its 110 mm stroke. The extruded aluminum barrel design omits tie rods, providing a clean exterior that resists mechanical contamination.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid or mildly chemical environments. It utilizes PT tapered port threads, and the barrel includes integrated sensor grooves on both sides for direct mounting of CMSE or DMSE switches if a magnet is added later. Adjustable air cushions at both ends ensure smooth deceleration of large payloads.
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX110 |
|---|---|
| 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.
| 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.
| 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.
Provides the 6136 N push force at 0.5 MPa required to seat bearings, form sheet metal, or execute heavy stamping operations securely.
Ideal for heavy pallet handling lines where the 125 mm bore delivers the raw thrust needed to push or divert loaded conveyors without stalling.
Excels in automated assembly presses where consistent high downward force and adjustable end-of-stroke cushioning protect the machinery from impact shock.
Selecting this 125 mm bore provides a substantial step up in thrust compared to the 100 mm bore, which yields 3927 N at 0.5 MPa. If your application requires less force and faster cycle rates, dropping to the 100 mm bore is advisable. For this 110 mm stroke, side-load stress on the rod bearing is minimal, but always ensure the load is guided to prevent premature seal wear.
Because this is a standard double-acting cylinder, it does not hold the load if air pressure is lost or the valve is centered; the piston will drift. If your application requires static holding without constant air pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants. As a true ISO 15552 profile cylinder, it serves as a dimensionally interchangeable drop-in replacement for any standard ISO 15552 cylinder with a 125 mm bore, 110 mm stroke, PT G1/2 port, and compatible mounting accessories like FA flanges or TC trunnions.
Quick checklist
At 0.5 MPa, the push force is 6136 N and the pull force is 5734 N. If you increase the operating pressure to 0.7 MPa, the push force rises to 8590 N.
Yes. The SAI125X110 is a genuine ISO 15552 profile cylinder, meaning its mounting interface is dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke. Just ensure your setup matches the G1/2 port and your required mounting accessories.
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