Airtac SAUD Double Rod Cylinder SAUD40X40
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X40 is a genuine double-acting profile-type standard air cylinder with a Ø40mm 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.
- BoreØ40 mm
- Stroke40 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 SAUD40X40
The AirTAC SAUD40X40 is a double-acting, double-rod profile cylinder. A 16 mm rod exits both ends of the extruded aluminium barrel, meaning both faces use the rod-side piston area. This yields an identical output of 528 N each way at 0.5 MPa. The unit is shorter than a standard ISO 15552 cylinder of the same bore and uses a 1/4 inch port.
This symmetric layout prevents piston twist during travel and lets you mount twin tooling on opposite sides. Because this specific SKU lacks the -S magnet suffix, it cannot host CMSG or DMSG sensors. 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.
Airtac SAUD Double Rod Cylinder SAUD40X40 Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X40 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 SAUD40X40
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | 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.
Where the Airtac SAUD Double Rod Cylinder SAUD40X40 Is Used
Twin-Tool Transfer
Drives two opposing pick-and-place heads simultaneously with equal 528 N force, ensuring perfectly synchronized tooling transfer without torsional deflection.
Anti-Rotation Clamping
Holds a workpiece flat from both sides using the dual rod structure to prevent mechanical twist during high-speed machining operations.
Balanced Vertical Lift
Raises and lowers a 27 kg fixture with consistent force both up and down, leveraging the compact profile to save vertical machine space.
Is the Airtac SAUD Double Rod Cylinder SAUD40X40 the Right Cylinder?
Choose this 40 mm bore when you need 528 N of equal bidirectional force at 0.5 MPa. If your project requires less thrust, step down to the 32 mm bore which provides 345 N both ways. If you need more power, the 50 mm bore offers 825 N in each direction. The twin-rod architecture is ideal for anti-rotation duties or driving two tools at once. You can mount the body using FA flange or LB foot brackets shared with the AirTAC SC series. With a 40 mm stroke, side-load stress is minimal, but any stroke over 300 mm demands an external guide to protect the rod seals. Note that without the -S option, magnetic sensing is impossible.
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 SAUD40X40 FAQ
Because the 16 mm rod exits both ends, the push and pull forces are equal. It generates 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa in both directions. The air port size is 1/4 inch.
No, a plain double-rod cylinder drifts without live air. The adjustable 21 mm cushions only decelerate the piston near the stroke ends and do not act as a brake. Use an external rod lock or pilot-operated check valve for secure load holding.
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