
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD32X500S is a genuine double-acting profile-type standard air cylinder with a Ø32mm bore and 500mm stroke, 1/8" 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-SAUD32X500S is an AirTAC double-acting, double-rod profile cylinder. The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD32X500S, mechanically identical to the base model. A rod exits both ends on one piston, meaning both faces use the rod-side area. Output force is equal in both directions, delivering 345 N each way at 0.5 MPa. The extruded aluminium profile barrel makes it shorter than an ISO 15552 cylinder of the same bore.
This 32 mm bore unit features a 1/8" port, M10x1.25 rod thread, and adjustable air cushions at both ends. The built-in magnet (-S) supports CMSG, DMSG, and EMSG switches. A Viton H seal option raises the operating temperature limit to 150 C.
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD32X500S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø32 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| 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 1000 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 | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 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. |
|---|---|
| 32 | Bore size in mm. |
| ×500 | 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 cabin panels on heavy equipment lines using equal push and pull force, preventing twist during long 500 mm transfers.
Uses the rear protruding rod to trip a CMSG sensor cam, verifying exact extension of construction machinery assemblies.
Synchronizes twin tooling on both rod ends to align heavy-duty loader arms without rotational drift during welding.
When sizing this double-rod unit, compare both ways: step down to a smaller bore if load allows, or step up to the 40 mm bore (which provides 528 N both ways at 0.5 MPa) if you need more force. Choose a double-rod profile when your application demands anti-rotation guidance, synchronized twin-tool driving, or when you need a back rod to carry a sensor cam. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. Because this is a 500 mm stroke, external guides are recommended to prevent rod bending under side loads. The -S magnet enables position sensing.
Quick checklist
The B04- prefix designates this as the construction-machinery dedicated variant of the SAUD32X500S, with identical specs. Force is equal both ways: 345 N at 0.5 MPa, 483 N at 0.7 MPa, and 621 N at 0.9 MPa. It uses a 1/8" port.
No, a plain cylinder drifts without live air. The adjustable cushion only decelerates the piston near stroke end. For secure load holding on construction machinery, install an external rod lock or pilot-operated check valve.
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