Airtac SAUD Double Rod Cylinder SAUD40X25S
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X25S 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 SAUD40X25S
The AirTAC SAUD40X25S is a double-acting profile cylinder with a 16mm rod exiting both ends, yielding identical push and pull thrust of 528 N at 0.5 MPa. Its hard-anodized extruded aluminum body is noticeably shorter than an ISO 15552 unit of the same bore. The 1/4" port and M12x1.25 rod thread make integration straightforward.
Because the rear rod can carry a switch cam, the integrated -S magnet works seamlessly with CMSG, DMSG, or EMSG sensors. The equal force makes it ideal for non-rotating or twin-tool tasks. Based on the 528 N output, expect a safe working load of roughly 317 N or a vertical lift capacity of about 27 kg with a 2:1 safety margin.
Airtac SAUD Double Rod Cylinder SAUD40X25S Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X25S |
|---|---|
| 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 SAUD40X25S
| 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 SAUD40X25S Is Used
Synchronized Transfer
Drives dual pick-and-place fingers simultaneously from a single compact body, ensuring perfectly matched timing without external linkages.
Cam-Triggered Cutting
Uses the protruding back rod to trip an external limit switch or carry a DMSG sensor cam, confirming tool position on every short 25mm stroke.
Anti-Rotation Stamping
Prevents piston twist during short-cycle marking or stamping duties, keeping the tool face perfectly aligned on the workpiece.
Is the Airtac SAUD Double Rod Cylinder SAUD40X25S the Right Cylinder?
Select this 40mm bore when your application demands equal thrust in both directions, such as anti-rotation guidance or driving two tools at once. If you need more power, the 50mm bore provides 825 N; if less is required, the 32mm bore offers 345 N, both equal both ways. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. The included -S magnet enables electronic or reed switching. At 25mm stroke, side-load risks are minimal, but always guide external loads to prevent binding.
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 SAUD40X25S FAQ
The double-rod design provides equal force both ways: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. It never produces a larger single-rod push value.
No, a plain cylinder drifts on air loss because the adjustable 21mm cushions only decelerate the piston near stroke end. For secure load holding, install an external rod lock or a pilot-operated check valve.
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1-Year Warranty
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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