Airtac SAUD Double Rod Cylinder SAUD40X800S
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X800S 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.
- BoreØ40 mm
- Stroke800 mm
- Port size1/4"
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAUD Double Rod Cylinder SAUD40X800S
The AirTAC SAUD40X800S is a double-acting, double-rod profile cylinder. A 16mm rod exits both ends, meaning push and pull forces are identical at 528 N each way at 0.5 MPa. The extruded aluminum barrel is shorter than a standard ISO 15552 unit of the same bore. This -S variant includes a piston magnet for CMSG, DMSG, or EMSG switches.
With a 1/4" port and M12x1.25 rod thread, it delivers 739 N at 0.7 MPa and 950 N at 0.9 MPa. The twin rods prevent rotation and allow mounting a sensor cam on the back end. For sizing, a safe working load is roughly 317 N, yielding a vertical lift capacity of about 27 kg with a 2:1 margin.
Airtac SAUD Double Rod Cylinder SAUD40X800S Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X800S |
|---|---|
| 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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac SAUD Double Rod Cylinder SAUD40X800S
| 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.
Where the Airtac SAUD Double Rod Cylinder SAUD40X800S Is Used
Twin-Tool Transfer
Drives two synchronized pick-and-place heads from one cylinder, ensuring parallel tool movement without torsional twist over the 800mm travel.
Guided Edge Trim
Holds a cutting blade assembly that must resist rotation during long-stroke trimming, using the second rod as a structural guide.
Rear-Cam Sensing
Uses the protruding back rod to trip an externally mounted CMSG or DMSG switch, freeing the front rod entirely for the primary work load.
Is the Airtac SAUD Double Rod Cylinder SAUD40X800S the Right Cylinder?
Choose this 40mm bore if you need 528 N of equal bidirectional force at 0.5 MPa. Sizing down, the 32mm bore provides 345 N both ways; sizing up, the 50mm bore offers 825 N. The double-rod layout is ideal for anti-rotation tasks, driving twin tooling, or rear-rod switch tripping. Mounting is limited to Basic, FA, and LB types compatible with the AirTAC SC series. Because the stroke is 800mm, external guides are recommended to prevent rod bending under side loads. The -S magnet supports CMSG/DMSG/EMSG sensors.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB — same as SC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAUD Double Rod Cylinder SAUD40X800S FAQ
Because the 16mm rod exits both ends, the force is equal in both directions. It produces 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. The 1/4" port and 21mm adjustable cushions handle the 30-800 mm/s speed range.
No, the air cushions only decelerate the piston near the stroke ends and do not lock the load. If air is lost, the piston will drift. For vertical load holding, you must add an external rod lock or a pilot-operated check valve.
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