
The AirTAC Airtac SAUD Double Rod Cylinder SAUD63X400S is a genuine double-acting profile-type standard air cylinder with a Ø63mm bore and 400mm stroke, 3/8" air ports and adjustable end cushioning. Its hard-anodized aluminum-profile barrel is shorter than an ISO 15552 cylinder of the same bore, and it shares SC-series mounting accessories.
The AirTAC SAUD63X400S is a double-acting, double-rod profile cylinder. A piston rod protrudes from both ends, meaning both faces use the rod-side area. This delivers an equal force of 1402 N each way at 0.5 MPa. The extruded aluminium barrel makes it shorter than an ISO 15552 cylinder of the same 63 mm bore. It features a 3/8 inch port and a 400 mm stroke.
Because of the twin rods, the unit resists torsional twist for non-rotating duties and can carry a sensor cam on the back rod. The -S suffix indicates a built-in piston magnet for CMSG, DMSG or EMSG switches. For sizing, the safe working load is roughly 841 N, allowing a vertical lift of about 71 kg with a 2:1 margin.
| Model | Airtac SAUD Double Rod Cylinder SAUD63X400S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 21 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAU series datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G (BSPP). A high-temperature seal (0-150 °C) is available.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SAU | Profile-type standard cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×400 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAU-family variants: SAUD (double rod), SAUJ (adjustable stroke), SAUF (with built-in solenoid valve), and SAU-S with built-in magnet. Seals: TPU (blank) / Viton H / NBR N. Sensor switches: CMSG / DMSG / EMSG.
Drives two synchronized forming tools from one piston, ensuring parallel contact without torsional deflection.
Uses the extended back rod to push a diverter arm while the front rod simultaneously trips a limit valve.
Lifts roughly 71 kg of stock with a 2:1 safety margin, relying on equal force for stable raising and lowering.
Choose this 63 mm bore when you need 1402 N of equal push and pull force at 0.5 MPa. Stepping down, the 50 mm bore provides 825 N both ways; stepping up, the 80 mm bore yields 2268 N. A double rod is the right call for anti-rotation guidance, driving twin tooling, or mounting a rear switch cam. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. The -S magnet supports reed and electronic sensors. At 400 mm stroke, external guides are recommended to prevent rod bending under side loads.
Quick checklist
The force is equal in both directions due to the double-rod design. It outputs 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa. The bore is 63 mm with a 3/8 inch port.
No, a plain double-rod cylinder drifts without live air. The adjustable cushions only decelerate near the stroke ends. For secure load holding, install an external rod lock or a pilot-operated check valve.
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