Airtac SAUD Double Rod Cylinder SAUD80X85S
The AirTAC SAUD Double Rod Cylinder SAUD80X85S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 85mm 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
- Stroke85 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 SAUD80X85S
The AirTAC SAUD80X85S is a double-acting, double-rod profile cylinder. A 25mm rod protrudes from both ends of the hard-anodized aluminum extruded barrel, meaning both faces use the rod-side area. This yields exactly 2268 N of thrust and pull at 0.5 MPa. The 3/8 inch port and M20x1.5 rod thread handle robust airflow and mounting.
Because the piston travels just 85mm, the 28mm adjustable air cushions easily tame end-of-stroke impacts. The extruded profile is notably shorter than a standard ISO 15552 unit of the same bore. The -S suffix indicates a built-in piston magnet for CMSG, DMSG, or EMSG switches.
Airtac SAUD Double Rod Cylinder SAUD80X85S Technical Specifications
| Model | Airtac SAUD Double Rod Cylinder SAUD80X85S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 85 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 SAUD80X85S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×85 | 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 SAUD80X85S Is Used
Twin-Spindle Lifting
Drives two synchronized tooling plates vertically with identical 2268 N force in both directions, preventing twist during part ejection.
Dual Pusher Assembly
Pushes and retracts opposing workpiece stops simultaneously using the front and rear rods, keeping cycle times balanced.
Cam-Triggered Sorting
Uses the extended back rod as a mechanical cam to trip external limit switches while the -S magnet tracks internal position.
Is the Airtac SAUD Double Rod Cylinder SAUD80X85S the Right Cylinder?
Select this 80mm bore if your mechanism demands equal push and pull forces, such as 2268 N at 0.5 MPa. Stepping down, the 63mm bore provides 1402 N each way, while the 100mm bore offers 3681 N. A twin-rod design is the right call when you need anti-rotation guidance, want to drive two tools at once, or require a back-end sensor cam. Mounting is limited to Basic, FA flange, and LB foot styles, matching the AirTAC SC series. With the -S magnet installed, you can fit reed or electronic sensors. For this 85mm stroke, side loads are minimal, but always guide the load externally on longer travels. Remember that the cushions only decelerate; use a pilot-operated check valve to hold a load securely without live air.
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 SAUD80X85S FAQ
The double-rod design provides equal force both ways: 2268 N at 0.5 MPa, 3175 N at 0.7 MPa, and 4082 N at 0.9 MPa. It never produces a larger single-rod push value.
No, the 28mm cushions only decelerate the piston near stroke end. To prevent drift on air loss, install an external rod lock or pilot-operated check valve.
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