
The AirTAC SAI80 Standard Air Cylinder SAI80BX40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 40mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI80X40 is a double-acting ISO 15552 profile cylinder featuring an 80mm bore and a 40mm stroke. It delivers a robust push force of 2513 N at 0.5 MPa, making it well-suited for short-travel, high-force clamping and pressing tasks. The extruded aluminum barrel omits tie rods, providing a clean exterior that integrates easily into tight machinery envelopes.
This specific configuration features a SUS304 stainless steel rod (option B) for superior corrosion resistance in washdown or chemically active settings. It utilizes PT tapered port threads and lacks a piston magnet. If position detection is required, a separate sensor-equipped variant or external switches would be necessary, as this unit cannot host CMSE or DMSE sensors.
| Model | Airtac SAI80 Standard Air Cylinder SAI80BX40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 36 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | 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.
Generates 2513 N of thrust at 0.5 MPa to secure heavy metal workpieces during aggressive machining or welding operations.
The 40mm stroke provides rapid, high-force pressing for inserting bearings or pins into housings on automated lines.
The SUS304 stainless steel rod option resists moisture and corrosion, making it ideal for food processing or packaging machinery.
Choose this 80mm bore when an SAI63 (1559 N at 0.5 MPa) lacks the necessary thrust for heavy lifting, but you want to avoid the larger footprint of a 100mm cylinder. The 40mm stroke is optimal for rapid, short linear movements. Because the stroke is well under 300mm, rod-bearing bending and side-load issues are minimal, though external guides are always recommended if the load is not perfectly axial.
This model is dimensionally interchangeable per ISO 15552, serving as a direct replacement for other standard profile cylinders. Key matching parameters include the 80mm bore, 40mm stroke, G3/8 port size, and PT thread type. Standard mounting accessories include LB foot brackets, FA flanges, and TC trunnion joints. Remember that the adjustable air cushions only decelerate the piston at stroke ends; they do not hold the load. For position holding without air pressure, specify an SAIL or BSAI variant.
Quick checklist
At an operating pressure of 0.5 MPa, the SAI80X40 generates a push force of 2513 N and a pull force of 2268 N. At 0.7 MPa, the push force increases to 3518 N.
Yes. As a genuine ISO 15552 profile cylinder, its mounting interface is dimensionally standardized. It serves as a direct replacement for other ISO 15552 profile cylinders with an 80mm bore, 40mm stroke, and G3/8 port.
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