Airtac SAUD Double Rod Cylinder SAUD40X25
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X25 is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 25mm 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
- Stroke25 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 SAUD40X25
The AirTAC SAUD40X25 is a double-acting, double-rod profile cylinder with a 40 mm bore and 25 mm stroke. A rod exits both ends, meaning push and pull forces are identical at 528 N each way at 0.5 MPa. The extruded aluminum barrel makes it shorter than an ISO 15552 unit of the same size. It uses a 1/4 inch port and an M12x1.25 rod thread.
This symmetric layout prevents piston twist during travel. Without the -S magnet option, this specific SKU cannot host CMSG or DMSG sensors. For sizing, expect a safe working load around 317 N, or a vertical lift capacity of roughly 27 kg with a 2:1 safety margin. The standard TPU seals handle -20 to +70 C, while a Viton H upgrade extends heat resistance to 150 C.
Airtac SAUD Double Rod Cylinder SAUD40X25 Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X25 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 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 SAUD40X25
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 SAUD40X25 Is Used
Twin Tool Transfer
Drives two opposing grippers simultaneously to pick and place parts from both sides of a conveyor without rotational deflection.
Pin Insertion Press
Uses the equal bidirectional force to push hardware into printed circuit boards on the forward stroke and retracts smoothly on the return.
Synchronized Clamping
Holds two workpieces parallel in a machining fixture by pushing equally from both ends of the assembly station.
Is the Airtac SAUD Double Rod Cylinder SAUD40X25 the Right Cylinder?
Choose this 40 mm bore delivering 528 N equal force when you need anti-rotation stability or twin tooling on a compact 25 mm stroke. If your project requires less thrust, step down to the 32 mm bore offering 345 N both ways. If you need more power, step up to the 50 mm bore providing 825 N. Mounting is limited to Basic, FA flange, and LB foot styles matching the AirTAC SC series. Because this SKU lacks the -S magnet, it cannot accept magnetic switches. For any stroke over 300 mm, always use external guide rails to prevent side-load wear.
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 SAUD40X25 FAQ
Because the rod exits both ends, the force is equal in both directions. It outputs 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. We never quote a larger single-rod push value for this double-rod profile.
No, a plain SAUD cylinder does not hold a load without live air. The adjustable air cushion only decelerates the piston near the stroke end. To prevent drift on air loss, you must install an external rod lock or a 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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