
The AirTAC Airtac SAID100 Double Rod Cylinder SAID100BX550S 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 SAID100X550-S is a double-acting, double-rod profile cylinder conforming to ISO 15552. A single piston drives a rod out of both end covers, yielding identical effective areas on extend and retract. This symmetry means you get 3681 N of force each way at 0.5 MPa, ensuring balanced thrust and velocity for demanding transfer tasks.
Configured with a SUS304 stainless steel rod (option B), this variant resists corrosion in harsh environments. The integrated magnet (-S) directly supports AirTAC CMSE reed and DMSE solid-state sensors, while the extruded aluminum barrel features sensor grooves on both sides for flexible mounting.
| Model | Airtac SAID100 Double Rod Cylinder SAID100BX550S |
|---|---|
| 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.
Drives a workpiece back and forth with perfectly matched 3681 N thrust on both strokes, ensuring consistent cycle times without force imbalance.
The twin-rod design prevents mechanical twisting during vertical or horizontal lifting, maintaining strict parallelism for precision tooling.
The protruding rear rod end directly operates an external mechanical valve or limit flag, synchronizing secondary processes without extra space.
Choose this 100mm bore when a 80mm bore (2268 N at 0.5 MPa) lacks sufficient thrust for symmetric pushing and pulling. The twin-rod architecture is selected over a single-rod SAI when the application demands dual-side guidance, anti-rotation stability, or a rear rod end to mount a secondary cam or position flag. Mounting options include the SAID-specific set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
Because the 550mm stroke exceeds 300mm, the extended unsupported rod length increases the risk of rod-bearing bending under heavy lateral loads; utilize an external guide rail to prevent premature wear. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end and do not hold the load if air pressure is lost—use a SAIL or BSAID lock cylinder for position holding. This unit is dimensionally interchangeable per ISO 15552 as a drop-in replacement for other ISO 15552 double-rod cylinders.
Quick checklist
Because the rod occupies both sides of the piston, the extend and retract forces are equal. It provides 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and 6626 N at 0.9 MPa in both directions.
Yes. The SAID100X550-S is a true ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 double-rod cylinders. It uses a G1/2 port and PT tapered threads.
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