
The AirTAC Airtac SAID100 Double Rod Cylinder SAID100AX425S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 425mm 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 SAID100X425-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 100 mm bore and 425 mm stroke. Because the piston rod exits both end covers, the effective annulus area is identical on extend and retract. This provides a perfectly balanced output of 3681 N each way at 0.5 MPa, ensuring symmetric force and speed throughout the motion cycle.
Equipped with a magnet (-S) for position sensing, this variant integrates seamlessly with AirTAC CMSE reed and DMSE solid-state switches mounted in the dual-side sensor grooves. The rod is constructed from SUS420J2 stainless steel (option A) for enhanced corrosion resistance, while fluid connections use PT tapered threads (G1/2). Adjustable air cushions at both ends decelerate the piston near stroke ends, though note this cushioning does not lock or hold the load if air pressure is lost.
| Model | Airtac SAID100 Double Rod Cylinder SAID100AX425S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 425 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. |
| ×425 | 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 automated shuttle systems where the equal 3681 N extend and retract forces at 0.5 MPa ensure perfectly balanced acceleration and deceleration of heavy pallets without speed variations.
The twin-rod design inherently resists torsional twist, providing precise linear guidance for machining fixtures where a single rod would allow unwanted rotational play.
Mounts the primary workpiece on the front rod end and a secondary cam or position flag on the rear protruding rod to actuate external limit switches during the stroke cycle.
Choose this 100 mm bore over the smaller 80 mm (2268 N at 0.5 MPa) when your application demands higher bidirectional thrust, or step up further to the 125 mm bore (5734 N) for very heavy transfer duties. The double-rod architecture is specifically selected over a single-rod SAI when the mechanism requires superior anti-rotation guidance, twin-station actuation, or a rear-rod position flag.
As a true ISO 15552 extruded aluminum profile cylinder, it serves as a drop-in replacement for other ISO 15552 double-rod cylinders. For a 425 mm stroke, the extended unsupported rod length increases side-load risks; utilize an external guide rail to prevent rod-bearing bending. Remember that a standard SAID does not hold position upon air loss—consider a BSAID clamp-lock cylinder if dead-fall prevention is required.
Quick checklist
Because the double-rod design has the same effective area on both sides of the piston, it generates 3681 N of force in both the extend and retract directions at 0.5 MPa, and 5153 N at 0.7 MPa.
Yes, the SAID100X425-S is built to the ISO 15552 dimensional standard, making it a drop-in replacement for other ISO 15552 profile double-rod cylinders, provided you use the PT G1/2 port and standard mounting interface.
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