Airtac SAUD Double Rod Cylinder SAUD40X400
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X400 is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 400mm 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
- Stroke400 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 SAUD40X400
The AirTAC SAUD40X400 is a double-acting, double-rod profile cylinder. A 16 mm rod exits both ends, meaning both faces use the rod-side area. This yields equal push and pull force of 528 N each way at 0.5 MPa. The extruded aluminium body is shorter than an ISO 15552 unit of the same bore. It features a 1/4" port and M12x1.25 rod thread.
This 40 mm bore model provides a safe working load of about 317 N (60% of the 528 N figure), allowing a vertical lift of roughly 27 kg with a 2:1 margin. The twin rods prevent rotation and carry two tools simultaneously. A Viton H seal option raises the operating ceiling to 150 C. Note this SKU lacks a magnet, so it cannot take a sensor switch.
Airtac SAUD Double Rod Cylinder SAUD40X400 Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X400 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 SAUD40X400
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×400 | 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 SAUD40X400 Is Used
Twin Tool Transfer
Drives two parallel pick-and-place heads simultaneously, keeping stroke perfectly synchronized without torsional twist.
Balanced Vertical Lift
Raises and lowers a 27 kg payload with equal force both directions, preventing gravitational drift during direction changes.
Non-Rotating Clamp
Holds a machining fixture securely against a workpiece, using the dual rods to resist rotational deflection under cutting loads.
Is the Airtac SAUD Double Rod Cylinder SAUD40X400 the Right Cylinder?
Choose this 40 mm bore if you need 528 N of equal bidirectional force at 0.5 MPa. Sizing down, the 32 mm bore gives 345 N both ways; sizing up, the 50 mm bore yields 825 N. A double rod is the right call for anti-rotation guidance or driving twin stations. Mounting uses FA flange or LB foot brackets, matching the AirTAC SC series. Because the 400 mm stroke is long, add external guides to prevent rod bending under side loads. Select a -S variant if you need magnetic sensing, as this plain SKU cannot host switches.
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 SAUD40X400 FAQ
Because the 16 mm rod exits both ends, the force is equal in both directions: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. The 1/4" port supplies air to both chambers.
No, a plain double-rod cylinder drifts without live air; the adjustable 21 mm cushions only decelerate near stroke end. For vertical load holding, install an external rod lock or pilot-operated check valve.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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