
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125BX195S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 195mm 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 SAI125X195-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty positioning. Delivering 6136 N of push force at 0.5 MPa, this made-to-order 195 mm stroke unit tackles substantial payloads with precision. The extruded aluminum barrel design omits tie rods for a clean, structurally rigid exterior.
This specific configuration includes a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in harsh environments. Equipped with a magnet (-S), it seamlessly integrates CMSE or DMSE sensor switches directly into the dual-side barrel grooves. Fluid connections use PT tapered threads, and the adjustable air cushions at both ends absorb high kinetic energy.
| Model | Airtac SAI125 Standard Air Cylinder SAI125BX195S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 195 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. |
| ×195 | 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 heavy blanks into progressive dies.
Shifts substantial chassis brackets and components with reliable, repeatable 195 mm travel.
Actuates heavy-duty diverter gates in high-throughput packaging lines using PT ported air connections.
Selecting this 125 mm bore is ideal when a 100 mm bore (offering 3927 N at 0.5 MPa) lacks the necessary thrust, but you want to avoid the significantly larger footprint of a 160 mm cylinder. The 195 mm stroke is a non-standard made-to-order length, falling between the 175 mm and 200 mm standard options.
Because the stroke is under 300 mm, rod-bearing bending is minimal, but always verify side-load limits. If your fixture drops when air pressure is removed, remember that the standard SAI does not hold position; integrate an external pilot-operated check valve or specify an SAIL (air-released lock) variant. As a true ISO 15552 profile cylinder, it mounts interchangeably with any standard ISO 15552 fixture using FA, FB, or TC accessories.
Quick checklist
At a 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
Yes. The SAI is a genuine ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 standard cylinders. Match the 125 mm bore, 195 mm stroke, and PT port size for a seamless drop-in replacement.
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