
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X150 is a genuine double-acting profile-type standard air cylinder with a Ø50mm bore and 150mm 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-SAUD50X150 is an AirTAC double-acting, double-rod profile cylinder. The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD50X150, mechanically identical to the base unit. A rod exits both ends, meaning both faces use the rod-side area and output force is equal in both directions. This bore delivers 825 N each way at 0.5 MPa, rising to 1154 N at 0.7 MPa, with a 1/4" port and M16x1.5 rod thread.
The extruded aluminium profile barrel is shorter than an ISO 15552 cylinder of the same bore. The twin rods provide anti-rotation guidance and let you drive two tools at once. Because this SKU lacks the -S magnet, it cannot take a magnetic switch.
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD50X150 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 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. |
| ×150 | 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 twin-tool actuation on heavy-equipment hydraulic test stands with equal push and pull force.
Uses the rigid double-rod anti-twist geometry to push and pull heavy-duty measurement fixtures without deflection.
Holds and shifts construction-machinery weldments with a compact profile barrel that saves machine space.
Choose this 50 mm bore if you need 825 N of equal bidirectional force. Step down to the 40 mm bore for 528 N, or up to the 63 mm bore for 1402 N, both also equal both ways. A double rod is the right call for construction-machinery rigs needing anti-rotation stability or twin-tool driving. Mounting is limited to Basic, FA flange, and LB foot brackets, matching the AirTAC SC series. At 150 mm stroke, mount external guides to absorb side loads. Remember that without the -S option, this cylinder cannot host CMSG or DMSG sensors.
Quick checklist
The B04- prefix denotes the construction-machinery dedicated variant of the SAUD50X150, sharing the exact same physical specs. Force is equal both ways because rods exit both ends: 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa. The port is 1/4".
No to both. The air cushion only decelerates near stroke end; it does not lock. On air loss the piston drifts, so use an external rod lock or pilot-operated check valve for holding. Also, this SKU lacks the -S magnet and cannot take CMSG or DMSG sensors.
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