Airtac SAUD Double Rod Cylinder SAUD40X300
The AirTAC Airtac SAUD Double Rod Cylinder SAUD40X300 is a genuine double-acting profile-type standard air cylinder with a Ø40mm bore and 300mm 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
- Stroke300 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 SAUD40X300
The AirTAC SAUD40X300 is a double-acting, double-rod profile cylinder. A 16mm rod exits both ends of the hard-anodized extruded aluminum barrel, meaning both faces use the rod-side piston area. This yields exactly 528 N of thrust and pull at 0.5 MPa, ensuring equal force both ways. The unit is shorter than an equivalent ISO 15552 model and uses a 1/4 inch port with M12x1.25 rod threads.
Because the rear rod protrudes, you can mount a sensor cam directly behind the piston, although this specific SKU lacks a magnet and cannot take a switch. The 528 N output at 0.5 MPa translates to a safe working load of roughly 317 N, or a vertical lift capacity of about 27 kg with a 2:1 safety margin. A 21mm adjustable air cushion decelerates the piston at both ends, but an external rod lock is required to hold a load securely without live air.
Airtac SAUD Double Rod Cylinder SAUD40X300 Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD40X300 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø40 mm |
| Stroke | 300 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 SAUD40X300
| SAU | Profile-type standard cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×300 | 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 SAUD40X300 Is Used
Twin-Tool Transfer
Drives two synchronized gripping jaws from opposite rod ends to shuttle parts horizontally between stations without rotation.
Balanced Lift Station
Raises and lowers a 27 kg vertical payload using the equal push and pull forces, ensuring smooth descent without drift bias.
Cam-Actuated Ejector
Uses the extended rear rod to physically trip a mechanical limit switch, ejecting finished parts from a machining fixture.
Is the Airtac SAUD Double Rod Cylinder SAUD40X300 the Right Cylinder?
When sizing this 40mm bore unit, note the equal 528 N force at 0.5 MPa. If you need less power, step down to the 32mm bore (345 N); if your application requires more, step up to the 50mm bore (1154 N at 0.7 MPa, or 825 N at 0.5 MPa). Choose this double-rod configuration when you need anti-rotation guidance, twin tooling on one axis, or a back rod to trip an external switch. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. Because this model has a 300mm stroke, you must use external guide rails to prevent rod bending and absorb side loads. Finally, this SKU has no magnet (-S), so it cannot accept 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 SAUD40X300 FAQ
The force is equal both ways because the 16mm rod exits both ends. 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, this specific SKU does not include a magnet (-S). You cannot use CMSG, DMSG, or EMSG switches on it. You would need the SAUD40X300-S variant for internal magnetic sensing, though you can still use the rear rod to trip an external mechanical switch.
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