
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X800 is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 800mm 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 SAUD40X800 is a double-acting profile-type cylinder featuring a 40 mm bore and an 800 mm stroke. A piston rod protrudes from both ends, meaning the push and pull output is identical. You get an equal 528 N of force each way at 0.5 MPa. The extruded aluminum barrel keeps the unit shorter than an ISO 15552 cylinder of the same bore, and it carries a 1/4 inch port.
This twin-rod geometry prevents twist during motion, making it ideal for non-rotating duties. Because this specific SKU lacks a magnet, it cannot accept magnetic switches. For sizing, a safe working load is roughly 317 N, which translates to a vertical lift capacity of about 27 kg with a 2:1 safety margin.
| Model | Airtac SAUD Double Rod Cylinder SAUD40X800 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 800 mm |
| Acting type | Double acting |
| Port size | 1/4" |
| Rod thread | M12×1.25 |
| 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 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×800 | 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 two packages simultaneously on a sorting line using equal push and pull force without twisting.
Raises and lowers a secondary machining head with identical force both directions for balanced vertical motion.
Pushes finished pallets out of a forming press over the 800 mm travel while resisting angular deflection.
Choose this 40 mm bore if your application requires 528 N of equal bidirectional force at 0.5 MPa. Stepping down, the 32 mm bore yields 345 N each way; stepping up, the 50 mm bore provides 825 N. The twin-rod layout is the right call when you need anti-rotation guidance or want to drive two tools at once. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. At 800 mm, this long stroke demands external guides to prevent rod bending under side loads. Note that without the -S suffix, magnetic sensing is impossible.
Quick checklist
Because the rod exits both ends, force is equal in both directions. It delivers 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. The unit features a 1/4 inch port.
No. The adjustable air cushion only decelerates the piston near stroke end; it is not a brake. If you need to hold a load on air loss, you must add an external rod lock or a pilot-operated check valve.
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