
The AirTAC SAUD Double Rod Cylinder SAUD80X20 is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 20mm stroke, 3/8" 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 AirTAC SAUD80X20 is a double-acting, double-rod profile cylinder featuring a 80 mm bore and 20 mm stroke. A rod exits both ends, meaning both faces use the rod-side area. Output is equal in both directions at 2268 N each way at 0.5 MPa. The extruded aluminum barrel is shorter than an ISO 15552 cylinder of the same bore.
This unit has a 3/8 inch port and a 25 mm rod with an M20x1.5 thread. A Viton H seal option raises the operating ceiling to 150 C. This SKU lacks a magnet, so it cannot take a magnetic switch.
| Model | Airtac SAUD Double Rod Cylinder SAUD80X20 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| 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, 28 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 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. |
|---|---|
| 80 | Bore size in mm. |
| ×20 | 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 opposing workholding clamps simultaneously with equal 2268 N force to secure a machined part.
Pushes a component off the belt while the back rod retracts a diverter gate in perfect synchronization.
Raises a heavy 116 kg pallet straight up without twisting, using the inherent stability of the dual rods.
For lower force needs, the 63 mm bore offers 1402 N both ways at 0.5 MPa. For higher output, the 100 mm bore provides 3681 N both ways. Choose this double-rod configuration when your application demands anti-rotation guidance, twin tooling, or a back rod to trip a switch. Mounting is limited to Basic, FA, and LB styles, matching the AirTAC SC series. Because this specific SKU lacks the -S magnet, it cannot accept CMSG or DMSG sensors. At a 20 mm stroke, side loading is minimal, but external guides are always recommended for stable travel.
Quick checklist
Force is equal both ways because both faces lose rod area. It generates 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. The 3/8 inch port feeds the 80 mm bore to deliver these figures.
No. The air cushions only decelerate the piston near stroke end; they do not act as a brake. The piston will drift on air loss. For vertical load holding, install an external rod lock or a pilot-operated check valve.
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