
The AirTAC Airtac SAI100 Standard Air Cylinder SAI100X400 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 400mm 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 SAI100X400 is a double-acting ISO 15552 profile cylinder featuring a 100mm bore and 400mm stroke. It generates 3927N of push force and 3681N of pull force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks requiring substantial travel distance. The extruded aluminum barrel design omits tie rods, providing a clean exterior that simplifies mounting and sensor placement.
This model incorporates adjustable air cushions at both ends to absorb kinetic energy over the extended travel. Standard configuration includes a carbon steel piston rod for structural durability and PT tapered port threads. If your assembly requires position feedback, dual sensor grooves on the barrel accept CMSE or DMSE switches when a magnet is specified.
| Model | Airtac SAI100 Standard Air Cylinder SAI100X400 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 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. |
| ×400 | 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 large metal forming or stamping dies over a 400mm travel, utilizing the 3927N push force at 0.5 MPa to deform thick materials reliably.
Actuates heavy-duty pallet diverters or routing gates on high-throughput conveyor lines where the extended stroke accommodates wide product profiles.
Positions large welding fixtures or clamps at robotic welding cells, benefiting from the robust carbon steel rod and heavy 100mm bore thrust.
Selecting this 100mm bore over the smaller 80mm variant upgrades your thrust from 2513N to 3927N at 0.5 MPa, whereas stepping up to a 125mm bore yields 6136N for heavier payloads. The 400mm stroke provides ample extension for automated machinery, but an unsupported rod of this length is highly susceptible to bending under side loads. To prevent premature rod-bearing wear, implement an external guide rail or utilize a fully guided cylinder assembly.
This unit is dimensionally interchangeable per ISO 15552, allowing direct drop-in replacement for other standard profile cylinders with identical 100mm bore, 400mm stroke, G1/2 port, and mounting accessory patterns. Note that the adjustable cushions decelerate the piston but do not secure a load; if air pressure drops, the rod will drift. For static holding requirements without constant air pressure, specify the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variant.
Quick checklist
At 0.5 MPa operating pressure, the SAI100X400 provides 3927N of push force and 3681N of pull force. If pressure is increased to 0.7 MPa, the push force reaches 5497N.
No, the standard SAI100X400 relies on adjustable air cushions for end-of-stroke deceleration, which do not lock the piston. If the application requires vertical load holding without live pressure, use the SAIL (with air-released lock) or BSAI (clamp-lock) variant, or install an external pilot-operated check valve.
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