Airtac SAUD Double Rod Cylinder SAUD40X115S
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X115S is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 115mm 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
- Stroke115 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 SAUD40X115S
The AirTAC SAUD40X115S is a double-acting, double-rod profile cylinder featuring a 40mm bore and 115mm stroke. Because a 16mm rod exits both ends, the push and pull forces are identical, delivering 528 N each way at 0.5 MPa. The extruded hard-anodized aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore. It uses a 1/4" port and M12x1.25 rod thread.
This -S variant includes a built-in piston magnet for CMSG, DMSG, or EMSG switches. The rear protruding rod is perfect for mounting a sensor cam or tripping a switch. Based on the 528 N output, the safe working load is roughly 317 N, translating to a vertical lift capacity of about 27 kg with a 2:1 safety margin. A Viton H seal option can raise the operating temperature to 150 C.
Airtac SAUD Double Rod Cylinder SAUD40X115S Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X115S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 115 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 SAUD40X115S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×115 | 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 SAUD40X115S Is Used
Twin-Tool Transfer
Drives two synchronized workpieces from opposite rod ends for simultaneous pick-and-place operations.
Anti-Rotation Lift
Prevents piston twist during vertical elevation of precision jigs using dual-rod geometric stability.
Cam-Triggered Sorting
Uses the extended rear rod to physically trip an external limit switch or carry a magnetic sensor cam.
Is the Airtac SAUD Double Rod Cylinder SAUD40X115S the Right Cylinder?
Choose this 40mm bore when 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. A double-rod design is the right call for anti-rotation guidance, driving twin tooling, or back-end sensing. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. At 115mm stroke, side loads are minimal, but external guides should always support the payload. The -S magnet enables precise position detection.
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 SAUD40X115S FAQ
Because the 16mm rod exits both ends, 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 air port is 1/4".
No. The adjustable air cushion only decelerates the piston near stroke ends; it does not act as a brake. For load holding, install an external rod lock or pilot-operated check valve.
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