Airtac SAU Standard Air Cylinder SAU80X325S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X325S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 325mm 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
- Stroke325 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X325S
The AirTAC SAU80X325S is a double-acting profile-type cylinder featuring an extruded aluminum barrel with an integrated sensor groove. Because it uses a profile barrel instead of standard tie rods, it achieves a shorter overall length than an ISO 15552 cylinder of the same bore, saving valuable space in dense machinery layouts. It delivers a robust 2513 N of push force and 2268 N of pull force at 0.5 MPa, operating on a 3/8" port with a 25 mm piston rod and M20x1.5 thread.
For practical sizing, plan for a safe working load of about 1508 N at 0.5 MPa to account for seal friction and smooth travel. In vertical lift scenarios, this translates to lifting about 128 kg with a 2:1 safety margin. The -S suffix indicates a built-in piston magnet, enabling direct mounting of CMSG, DMSG, or EMSG switches for position detection. If your environment exceeds the standard -20 to +70 C range, you can specify the Viton H high-temperature seal option to handle up to 150 C.
Airtac SAU Standard Air Cylinder SAU80X325S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X325S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 325 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAU Standard Air Cylinder SAU80X325S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×325 | 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 SAU Standard Air Cylinder SAU80X325S Is Used
Heavy Press Ejection
Provides the high force needed to eject dense metal stampings from a hydraulic press bed, with the 325 mm stroke reaching deep into the tooling cavity.
Palletized Load Shifting
Pushes heavy palletized goods laterally onto a secondary conveyor line, where the compact profile saves floor space in congested logistics hubs.
Woodworking Panel Routing
Secures large wooden panels against a CNC routing table, using the built-in magnet to confirm clamp engagement before the spindle starts.
Is the Airtac SAU Standard Air Cylinder SAU80X325S the Right Cylinder?
When sizing this 80 mm bore, compare it against its neighbors: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore provides 3927 N, helping you decide if you need to step down for speed or up for heavier loads. Mounting is straightforward using AirTAC SC-series accessories, including LB foot brackets, FA/FB flanges, and CA/CB clevises. Because this unit has the -S magnet, it is fully ready for solid-state or reed sensors.
With a 325 mm stroke, the 25 mm rod is susceptible to bending under lateral stress, so you must use an external guide or load-bearing rail to prevent side-load damage. Furthermore, the adjustable 28 mm air cushions only decelerate the piston near the end of travel; they do not act as a brake. If your application must hold a load vertically during air loss or valve centering, install an external rod lock or a pilot-operated check valve to prevent drifting.
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 SAU Standard Air Cylinder SAU80X325S FAQ
This 80 mm bore cylinder features a 3/8" port and generates 2513 N push / 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a theoretical maximum of 513 kgf at 1.0 MPa.
No, it is not dimensionally interchangeable with ISO 15552 brackets; you must use AirTAC SC-series accessories like LB, FA, or CA mounts. However, the -S magnet allows direct mounting of CMSG, DMSG, or EMSG switches in the profile groove.
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