Airtac SAUD Double Rod Cylinder SAUD40X240S
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X240S is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 240mm 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
- Stroke240 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 SAUD40X240S
The AirTAC SAUD40X240S is a double-acting, double-rod profile cylinder featuring a 40 mm bore and a 240 mm stroke. A piston rod exits both ends, meaning both faces use the rod-side area. This yields identical push and pull thrust of 528 N each way at 0.5 MPa. The extruded hard-anodized aluminum barrel is noticeably shorter than an ISO 15552 unit of the same bore.
This SAUD40X240S variant includes a built-in piston magnet (-S) for direct mounting of CMSG, DMSG, or EMSG switches. The 1/4" port and M12x1.25 rod thread are fixed by the 40 mm bore. For sizing, a safe working load is roughly 317 N (about 60% of the 0.5 MPa force), translating to a vertical lift capacity of about 27 kg with a 2:1 margin.
Airtac SAUD Double Rod Cylinder SAUD40X240S Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X240S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 240 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 SAUD40X240S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×240 | 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 SAUD40X240S Is Used
Twin-Tool Transfer
Drives two identical pickers in perfect synchronization from one piston, ensuring parallel part transfer without adding a second actuator.
Dual-Sense Cam Trip
Uses the extended back rod as a mechanical cam to directly trigger external limit valves while the front rod performs the primary work.
Non-Rotating Lift
Lifts delicate electronics trays straight up without twisting, relying on the dual rods for inherent anti-rotation stability.
Is the Airtac SAUD Double Rod Cylinder SAUD40X240S the Right Cylinder?
Choose this 40 mm double-rod unit when your mechanism requires strict anti-rotation guidance, synchronized twin-tool driving, or a back rod to trip a switch. If you need less thrust, the 32 mm bore offers 345 N both ways; if you need more, the 50 mm bore provides 825 N both ways. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. Because this 240 mm stroke is at or above 300 mm, always use an external guide to prevent side-load damage.
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 SAUD40X240S FAQ
Because it is a double-rod cylinder, the force is equal in both directions. It delivers 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa on both the push and pull strokes.
No. A plain cylinder drifts on air loss; the adjustable 21 mm cushions only decelerate near stroke ends. For vertical 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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