Airtac SAUD Double Rod Cylinder SAUD40X250
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X250 is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 250mm 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
- Stroke250 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 SAUD40X250
The AirTAC SAUD40X250 is a double-acting, double-rod profile cylinder with a 40mm bore and 250mm stroke. A rod exits both ends, meaning push and pull forces are identical at 528N each way at 0.5MPa. The extruded aluminium barrel is shorter than an equivalent ISO 15552 unit, and it uses a 1/4 inch port with an M12x1.25 rod thread.
Because both faces share the same rod-side area, you get equal force for non-rotating or twin-tool duty. A computed buyer insight: safe working load is roughly 317N, and vertical lift is about 27kg with a 2:1 margin. This SKU lacks a magnet, so it cannot take a sensor switch. Note that air cushions only decelerate; use an external rod lock for load holding.
Airtac SAUD Double Rod Cylinder SAUD40X250 Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X250 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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 SAUD40X250
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×250 | 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 SAUD40X250 Is Used
Twin-Tool Transfer
Drives two identical pickers simultaneously from opposite rod ends, keeping stroke forces balanced without twist.
Anti-Rotation Edge Guide
Holds a web edge steady in a packaging line, using the dual rods to resist torsional deflection during fast shifts.
Symmetric Clamping Arm
Pushes and pulls a clamping jaw with matching 528N force, ensuring consistent pressure regardless of travel direction.
Is the Airtac SAUD Double Rod Cylinder SAUD40X250 the Right Cylinder?
Choose this 40mm bore if you need 528N of equal bidirectional force at 0.5MPa. Sizing up, the 50mm bore provides 825N both ways; sizing down, the 32mm bore offers 345N. The double-rod design is ideal when you need anti-rotation guidance or want to drive two tools at once. Mounting is limited to Basic, FA, and LB styles, matching the AirTAC SC series. At 250mm stroke, add external guide rails to handle side loads. This non-magnet version cannot host CMSG or DMSG sensors.
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 SAUD40X250 FAQ
The force is equal both ways because it is a double-rod cylinder. It outputs 528N at 0.5MPa, 739N at 0.7MPa, and 950N at 0.9MPa. It uses a 1/4 inch port.
No. This specific SKU does not include a magnet, so it cannot host CMSG, DMSG, or EMSG sensors. You would need the -S variant for switch readiness.
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