Airtac SAUD Double Rod Cylinder SAUD40X275
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X275 is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 275mm 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
- Stroke275 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 SAUD40X275
The AirTAC SAUD40X275 is a double-acting double-rod profile cylinder with a 40 mm bore and 275 mm stroke. A 16 mm rod exits both ends, meaning push and pull forces are equal at 528 N each way at 0.5 MPa. The extruded aluminium body is shorter than an ISO 15552 unit of the same bore. It uses a 1/4 inch port and M12x1.25 rod threads.
Because this SKU lacks the -S magnet suffix, it cannot accept CMSG, DMSG, or EMSG sensors. The twin rods provide rigid anti-rotation guidance for synchronized tool driving. Based on the 528 N output, the 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 SAUD40X275 Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X275 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 275 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 SAUD40X275
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×275 | 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 SAUD40X275 Is Used
Twin-Tool Transfer
Drives two opposing pickers simultaneously to transfer parts between conveyor stations without rotation.
Anti-Twist Clamping
Holds a workpiece flat during machining using the dual rods to prevent mechanical twist under load.
Balanced Lift Fixture
Raises and lowers a 27 kg assembly platform with equal push and pull stability for vertical handling.
Is the Airtac SAUD Double Rod Cylinder SAUD40X275 the Right Cylinder?
Choose this 40 mm bore if you need 528 N of equal bidirectional force at 0.5 MPa. Stepping down to the 32 mm bore yields 345 N, while stepping up to the 50 mm bore provides 825 N. A double-rod design is ideal when you need anti-twist stability or want to drive two tools from one piston. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. At 275 mm stroke, external load guides are recommended to prevent side-loading wear. Note this non-magnetic version cannot host position 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 SAUD40X275 FAQ
The force is equal in both directions because of the double rod. It generates 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. The 1/4 inch port supplies air to both chambers equally.
No, the air cushions only decelerate the piston near stroke end and do not act as a brake. The piston will drift on air loss or valve centering. You must add an external rod lock or pilot-operated check valve for load holding.
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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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