
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X100S is a genuine double-acting profile-type standard air cylinder with a Ø50mm bore and 100mm stroke, 1/4" 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-SAUD50X100S is an AirTAC double-acting, double-rod profile cylinder. The B04- prefix marks this as the construction-machinery dedicated variant, mechanically identical to the SAUD50X100S. It features a 50mm bore, 100mm stroke, and a 1/4 inch port. Because a rod exits both ends, the output force is equal in both directions, delivering 825 N each way at 0.5 MPa.
This extruded aluminum profile body is shorter than an ISO 15552 cylinder of the same bore. The rear rod can carry a sensor cam, and the included -S magnet supports CMSG, DMSG, or EMSG switches. A plain cylinder drifts without live air, so use an external rod lock for holding.
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X100S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø50 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| 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 1200 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 | 825 N | 825 N |
| 0.7 MPa | 1155 N | — |
| Max (@1.0 MPa) | 168 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. |
|---|---|
| 50 | Bore size in mm. |
| ×100 | 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.
Synchronizes dual pilot valves on heavy machinery using equal push and pull forces without rotational twist.
Flips aggregate chutes on screening plants where the rear rod trips a limit switch to confirm position.
Drives twin opposing wedges on undercarriage assemblies, leveraging the compact profile to fit tight chassis spaces.
Select this 50mm bore when you need 825 N of equal force both ways. Step down to the 40mm bore for 528 N, or up to the 63mm bore for 1402 N if your construction equipment needs more power. A double rod is the right call for anti-rotation guidance, driving twin tooling, or mounting a rear switch cam. Mounting fits AirTAC SC series FA and LB brackets. The -S magnet allows CMSG/DMSG/EMSG sensors. For this 100mm stroke, side loads are minimal, but always guide the load externally on longer strokes to prevent binding.
Quick checklist
The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD50X100S, with identical specs. Force is equal both ways: 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa. It uses a 1/4 inch port and M16x1.5 rod thread.
No, a plain cylinder drifts without live air; the air cushion only decelerates near stroke end. Use an external rod lock or pilot-operated check valve for holding. The -S magnet allows CMSG, DMSG, or EMSG switches to mount directly on the profile body.
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