Airtac SAUD Double Rod Cylinder SAUD40X30S
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X30S is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 30mm 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
- Stroke30 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 SAUD40X30S
The AirTAC SAUD40X30S is a double-acting, double-rod profile cylinder with a 40 mm bore and 30 mm stroke. A rod exits both ends, so both faces use the rod-side area and the output force is equal in each direction. This unit delivers 528 N each way at 0.5 MPa, rising to 739 N at 0.7 MPa and 950 N at 0.9 MPa. The 1/4" port and M12x1.25 rod thread are fixed by the bore.
The extruded aluminum profile is shorter than a standard ISO 15552 cylinder of the same bore. The -S suffix indicates a built-in piston magnet for CMSG, DMSG or EMSG switches. For sizing, the safe working load is about 317 N, and it can vertically lift roughly 27 kg with a 2:1 margin. A Viton H seal option extends the operating temperature to 150 C.
Airtac SAUD Double Rod Cylinder SAUD40X30S Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X30S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 SAUD40X30S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 SAUD40X30S Is Used
Twin-Tool Transfer
Drives two synchronized workpieces from one piston, keeping force identical in both directions.
Anti-Rotation Gripper
The dual rods prevent twist during clamping, ensuring precise part holding without extra guides.
Back-End Switch Cam
Uses the protruding rear rod to trip an external limit switch or carry a position sensor.
Is the Airtac SAUD Double Rod Cylinder SAUD40X30S the Right Cylinder?
Choose this 40 mm bore if you need 528 N of equal push and pull force at 0.5 MPa. Sizing down, the 32 mm bore provides 345 N both ways. Sizing up, the 50 mm bore yields 825 N both ways. A double rod is the right call for anti-rotation guidance, driving twin tooling, or mounting a switch cam on the back rod. Mounting is limited to Basic, FA flange and LB foot, matching the AirTAC SC series. Because the stroke is only 30 mm, side-load stress is 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 SAUD40X30S FAQ
Because it is a double-rod cylinder, the force is equal both ways: 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa. It uses a 1/4" port.
No, a plain double-rod cylinder drifts without live air; the adjustable cushions only decelerate near stroke end. Use an external rod lock or pilot-operated check valve for holding.
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