
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD63X450S is a genuine double-acting profile-type standard air cylinder with a Ø63mm bore and 450mm 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 B04-SAUD63X450S is an AirTAC double-acting, double-rod profile cylinder. The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD63X450S, mechanically identical to the base unit. Because a rod exits both ends, the push and pull forces are equal at 1402 N each way at 0.5 MPa. The extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same bore. A 3/8" port and M16x1.5 rod thread handle the airflow.
With the -S option, a built-in magnet enables CMSG, DMSG, or EMSG switches for position sensing. The 450 mm stroke length requires external guide rails to prevent rod bending under side loads. The cushion only decelerates the piston near stroke end; it does not lock the load.
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD63X450S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø63 mm |
| Stroke | 450 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 | 1402 N | 1402 N |
| 0.7 MPa | 1962 N | — |
| Max (@1.0 MPa) | 286 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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. |
| ×450 | 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 twin diverter valves in construction machinery with equal push and pull force, ensuring precise hydraulic routing without rotational drift.
Synchronizes dual pusher arms on aggregate conveyors. The double-rod geometry keeps the tooling balanced over the 450 mm travel.
Operates opposing wear-plate adjusters in rock crushing equipment. The back rod carries a switch cam to confirm stroke completion.
Size this 63 mm bore against its neighbors: the 50 mm bore yields 825 N both ways, while the 80 mm bore provides 2268 N both ways at 0.5 MPa. Choose this double-rod model when your construction equipment needs anti-rotation guidance, synchronized twin-tool driving, or a back rod to trip a limit switch. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. The -S magnet supports reed and electronic sensors. For the 450 mm stroke, always add an external linear guide to absorb side loads and prevent rod bending.
Quick checklist
The B04- prefix denotes the construction-machinery dedicated variant of the SAUD63X450S, sharing identical specs. Force is equal both ways: 1402 N at 0.5 MPa, 1962 N at 0.7 MPa, and 2523 N at 0.9 MPa. It uses a 3/8" port.
No. The adjustable air cushions only decelerate the piston near the stroke ends; they do not act as a brake. If air is lost, the load drifts. Use an external rod lock or pilot-operated check valve for secure load holding.
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