
The AirTAC Airtac SAUD Double Rod Cylinder SAUD50X40 is a genuine double-acting profile-type standard air cylinder with a Ø50mm bore and 40mm 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 AirTAC SAUD50X40 is a double-acting, double-rod profile cylinder with a 50 mm bore and 40 mm stroke. Because a rod protrudes from both ends, the push and pull output is identical at 825 N each way at 0.5 MPa. The extruded aluminum body is noticeably shorter than a standard ISO 15552 unit of the same bore, and mounting parts match the AirTAC SC series.
This specific SKU lacks the internal magnet, so it cannot host CMSG or DMSG sensors. The 1/4" port drives the unit at 30-800 mm/s. A computed buyer insight: the safe working load is roughly 495 N, which translates to a vertical lift capacity of about 42 kg with a 2:1 safety margin. For high-heat environments up to 150 C, specify the Viton H seal option.
| Model | Airtac SAUD Double Rod Cylinder SAUD50X40 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
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. |
| ×40 | 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 two synchronized forming punches from one piston, ensuring perfectly matched timing and equal 825 N thrust on both advance and retract strokes.
Lifts and lowers light jigs up to 42 kg vertically without twisting, using the dual rods to resist angular torque during transfer movements.
Pushes product from either side of a narrow lane using the opposing rod ends, maintaining identical clamping pressure in both directions.
Choose this 50 mm bore when you need 825 N of equal bidirectional thrust over a short 40 mm stroke. If your project requires less force, step down to the 40 mm bore delivering 528 N both ways; if you need more power, step up to the 63 mm bore providing 1402 N. A twin-rod design is the right call for anti-rotation guidance, driving dual tools, or mounting a switch cam on the back rod. You can mount it via basic, FA flange, or LB foot styles. Because this is a non-magnetized SKU, you cannot add sensors. The 40 mm stroke is short enough to avoid significant side-load bending, but always use external guides for any stroke reaching 300 mm or more.
Quick checklist
The force is equal both ways because of the double-rod design. It outputs 825 N at 0.5 MPa, 1154 N at 0.7 MPa, and 1484 N at 0.9 MPa. The 1/4" port and 21 mm adjustable cushions handle speeds of 30-800 mm/s.
No, a plain cylinder drifts without live air, as the cushions only decelerate near the stroke end. Use an external rod lock or pilot-operated check valve for secure load holding. Also, this non-magnetized SKU cannot take sensors.
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