
The AirTAC SAI40 Standard Air Cylinder SAI40BX180S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 180mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI40X180-S is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and 180mm stroke. It delivers 628 N of push force at 0.5 MPa, making it well-suited for mid-range industrial handling tasks. The extruded aluminum barrel design omits tie rods, presenting a clean exterior that integrates seamlessly into modern automated machinery.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance in humid or washdown environments. It is equipped with PT tapered port threads and includes a built-in magnet (-S) for direct compatibility with CMSE and DMSE series proximity switches via the dual sensor grooves on the barrel.
| Model | Airtac SAI40 Standard Air Cylinder SAI40BX180S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 180 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×180 | 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 reliable 628 N clamping force at 0.5 MPa for securing machined parts during milling or drilling operations.
The 180mm stroke offers precise actuation distance for routing medium-sized cartons on packaging and sorting lines.
Utilizes adjustable end cushions to smoothly eject molded parts from automated presses without impact damage.
Choose this 40mm bore when an SAI32 (402 N push at 0.5 MPa) lacks the necessary thrust, but an SAI50 (982 N push at 0.5 MPa) would be physically oversized. For applications requiring position holding without continuous air pressure, remember that the standard adjustable air cushions only decelerate the piston at stroke ends; they do not lock the rod. For secure load holding upon pressure loss, specify the SAIL pneumatic lock or BSAI bidirectional clamp-lock variant. To replace an existing ISO 15552 cylinder, match the 40mm bore, 180mm stroke, PT G1/4 port, and mounting accessories like FA/FB flanges or LB foot brackets, and ensure the -S magnet is included if sensors are used.
Quick checklist
At a 0.5 MPa operating pressure, the SAI40X180-S generates 628 N of push force and 528 N of pull force. At 0.7 MPa, the push force increases to 879 N.
Yes, the SAI40X180-S is dimensionally interchangeable with other ISO 15552 profile cylinders. You can replace a competing brand by matching the 40mm bore, 180mm stroke, G1/4 port, and mounting interface.
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