Airtac SAUD Double Rod Cylinder SAUD80X425S
The AirTAC SAUD Double Rod Cylinder SAUD80X425S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 425mm stroke, 3/8" 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.
- BoreØ80 mm
- Stroke425 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 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 SAUD80X425S
The AirTAC SAUD80X425S is a double-acting, double-rod profile cylinder. A 25 mm rod exits both ends of the hard-anodized aluminum extrusion, meaning both faces use the rod-side piston area. This yields exactly 2268 N of output force at 0.5 MPa in both directions. The extruded profile keeps the total body shorter than an ISO 15552 unit of the same bore. A 3/8 inch port supplies air, and the S suffix confirms a built-in magnet for CMSG, DMSG, or EMSG switches.
Because the rear rod protrudes, it can carry a sensor cam or trip a switch externally while driving two tools. The 425 mm stroke is within standard limits, but at this length external guides are recommended to prevent rod bending. For high-heat environments up to 150 C, specify the Viton H seal option.
Airtac SAUD Double Rod Cylinder SAUD80X425S Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD80X425S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 425 mm |
| Acting type | Double acting |
| Port size | 3/8" |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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 SAUD80X425S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×425 | 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 SAUD80X425S Is Used
Twin-Tool Stamping
Drives two synchronized forming tools from one piston, utilizing the equal push and pull force to maintain parallel contact on both strokes.
Anti-Rotation Diverter
Uses the dual rods to prevent twist during lateral load shifting on a sorting line, ensuring the diverter paddle stays perfectly aligned.
External Cam Sensing
Mounts a switch trip cam on the rear protruding rod, keeping the sensing hardware completely isolated from the primary work area.
Is the Airtac SAUD Double Rod Cylinder SAUD80X425S the Right Cylinder?
Choose this 80 mm bore if you need 2268 N equal force both ways at 0.5 MPa. Stepping down to a 63 mm bore drops the equal force to 1402 N, while moving up to a 100 mm bore increases it to 3681 N. A double rod is the right call when your mechanism requires anti-rotation guidance, needs to drive twin tooling, or must mount a switch cam on the back rod. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. The S suffix provides the magnet required for position sensing. Since the 425 mm stroke is fairly long, always support the load with external guides to avoid rod side-loading and bending.
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 SAUD80X425S FAQ
The force is equal in both directions because it is a double-rod cylinder. It provides 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. The 3/8 inch port and 25 mm rod ensure consistent flow and strength.
No, a plain cylinder drifts when air is lost or the valve is centered. The adjustable 28 mm air cushions only decelerate the piston near the stroke ends. To hold a load securely, you must add an external rod lock or a pilot-operated check valve.
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