
The AirTAC SAI50 Standard Cylinder SAI50BX300 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 300mm 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 SAI50X300 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and 300mm stroke. It generates 982 N of push force and 825 N of pull force at 0.5 MPa, making it well-suited for medium-duty automation tasks requiring a long linear travel range.
This specific configuration includes a SUS304 stainless steel piston rod for superior corrosion resistance in harsh environments. It utilizes PT tapered port threads and lacks a standard magnet, though the extruded aluminum barrel retains sensor grooves on both sides for future mounting flexibility.
| Model | Airtac SAI50 Standard Cylinder SAI50BX300 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 300 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×300 | 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.
Drives long-travel pushers and diverters on conveyor lines, utilizing the 300mm stroke to clear packaging lanes effectively.
Indexes pallets into staging areas, taking advantage of the 982 N push force at 0.5 MPa to move medium-weight loads.
Actuates large safety guards and process doors where the SUS304 rod provides reliable performance against washdowns or ambient moisture.
With a 300mm stroke, the unsupported rod length increases the risk of side-load deflection and rod-bearing wear. For applications involving heavy lateral loads, utilize an external guide mechanism or switch to a guided cylinder to prevent premature failure. If higher thrust is needed, stepping up to the 63mm bore yields 1559 N at 0.5 MPa; for lighter duties, the 40mm bore provides 628 N.
As a standard double-acting cylinder, this model will not hold a load if air pressure is lost or exhausted. The adjustable air cushions at both ends only decelerate the piston near the stroke ends; they do not function as a brake. For true position holding without live pressure, consider the SAIL (air-released lock) variant or an external rod lock. This model is dimensionally interchangeable with other ISO 15552 cylinders.
Quick checklist
At an operating pressure of 0.5 MPa, this double-acting cylinder provides a push force of 982 N and a pull force of 825 N. At 0.7 MPa, the push force increases to 1374 N.
Yes, the SAI50X300 is a genuine ISO 15552 profile cylinder. Its standardized mounting dimensions make it a direct replacement for other ISO 15552 cylinders, utilizing a G1/4 port and standard mounting accessories.
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