
The AirTAC Airtac SAI100 Standard Air Cylinder SAI100X550 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 550mm 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 SAI100X550 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 3927 N of push force at 0.5 MPa and 5497 N at 0.7 MPa, this 100mm bore actuator handles substantial loads over its 550mm stroke. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that drops directly into standardized ISO 15552 mounting footprints.
This configuration features a standard carbon steel piston rod and PT tapered G1/2 ports. Because it lacks the -S magnet option, position sensing requires external limit switches rather than the integrated sensor grooves. For applications facing temperature extremes, the standard TPU seals can be swapped for high-temperature Viton (H) or NBR (N) elastomers, while related variants like the SAIF integrate a 4M solenoid valve directly into the cylinder body.
| Model | Airtac SAI100 Standard Air Cylinder SAI100X550 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 550 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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. |
|---|---|
| 100 | Bore size in mm. |
| ×550 | 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.
Ideal for applying high clamping forces in assembly lines, utilizing its 5497 N push force at 0.7 MPa to seat bearings or form components securely.
Provides the robust physical stroke needed to push heavy loaded pallets off a main conveyor belt onto a secondary packaging spur.
Raises heavy industrial totes or metal blanks by 550mm between processing tiers, taking advantage of the stable ISO 15552 mounting interface.
Selecting this 100mm bore over the smaller 80mm variant significantly increases thrust, stepping up from 2513 N to 3927 N at 0.5 MPa. If your application requires even greater power, the 125mm bore offers 6136 N under the same pressure. At a 550mm stroke, the extended carbon steel rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear, implement an external guide rail or utilize a dedicated guided cylinder to absorb lateral forces.
As a standard double-acting actuator, this model relies on continuous air pressure to move and cannot hold a load if pressure is lost or the valve is centered. The adjustable air cushions at both ends only decelerate the piston near the stroke endpoints to reduce impact; they do not function as a locking mechanism. For true fail-safe load holding without live pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants.
Quick checklist
At 0.5 MPa operating pressure, the push force is 3927 N and the pull force is 3681 N. If pressure is increased to 0.7 MPa, the push force rises to 5497 N.
Yes, the SAI100X550 is built to the ISO 15552 dimension standard, making it a drop-in replacement for other ISO 15552 profile cylinders with matching 100mm bore, 550mm stroke, and G1/2 port specifications.
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