
The AirTAC B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD100X450S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 450mm stroke, 1/2" 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-SAUD100X450S is an AirTAC double-acting double-rod profile cylinder. The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD100X450S, mechanically identical to the base unit. A rod exits both ends, meaning both faces use the rod-side area to deliver equal force each way, outputting 3681 N at 0.5 MPa. The extruded aluminum profile barrel is shorter than an ISO 15552 cylinder of the same bore.
This 100mm bore unit uses a 1/2 inch port and M20x1.5 rod thread. The -S suffix provides a built-in piston magnet for CMSG, DMSG or EMSG switches. With a 450mm stroke, external guides should support the load to prevent rod bending. A plain cylinder drifts on air loss; the 29mm adjustable cushions only decelerate near stroke end, so use an external rod lock for holding.
| Model | Airtac B04-SAUD Construction Machinery Dedicated Standard Cylinder B04-SAUD100X450S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| Rod thread | M20×1.5 |
| 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, 29 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 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. |
|---|---|
| 100 | 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.
Synchronizes dual covers on heavy equipment with equal push and pull force, resisting torsional twist during earthmoving.
Drives two opposing tooling arms from one piston, maintaining balanced pressure on both sides of the material flow.
Uses the protruding rear rod as a physical cam to trigger external limit switches in dusty construction cab environments.
Size both ways: the 80mm bore yields 2268 N at 0.5 MPa, while this 100mm bore yields 3681 N. Choose this double-rod model when your construction equipment needs anti-rotation guidance, drives twin tooling, or uses the back rod to trip a switch. Mounting is limited to Basic, FA flange, and LB foot, matching the AirTAC SC series. Because the 450mm stroke exceeds 300mm, add external load guides to prevent side-load wear. Viton H seals raise the operating temperature to 0-150 C for hot environments.
Quick checklist
The force is equal both ways because a rod exits both ends. It outputs 3681 N at 0.5 MPa, 5153 N at 0.7 MPa, and 6626 N at 0.9 MPa. The 1/2 inch port feeds the 100mm bore.
The B04- prefix marks this as the construction-machinery dedicated variant of the SAUD100X450S, sharing identical specs. The -S suffix means it has a built-in magnet for CMSG, DMSG or EMSG sensors.
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