Airtac SAU Standard Air Cylinder SAU80X300S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X300S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 300mm 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
- Stroke300 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X300S
The AirTAC SAU80X300S is a double-acting profile-type cylinder featuring a 300 mm stroke and an extruded aluminum barrel with an integrated sensor groove. Because it uses a profiled barrel rather than a standard rod-tie construction, it achieves a shorter overall length than an ISO 15552 cylinder of the same bore, saving valuable machine space. It delivers a robust 2513 N of push force and 2268 N of pull force at 0.5 MPa, operating with a 3/8" port and a 25 mm piston rod.
Equipped with a built-in magnet (-S), this unit directly supports CMSG, DMSG, and EMSG electronic or reed switches for precise position detection. For real-world sizing, plan for a safe working load of roughly 1508 N (about 60% of the 0.5 MPa push rating) to account for seal friction and smooth travel. Alternatively, it can reliably lift a 128 kg vertical load when applying a conservative 2:1 safety margin.
Airtac SAU Standard Air Cylinder SAU80X300S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X300S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAU80X300S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | 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 SAU Standard Air Cylinder SAU80X300S Is Used
Injection Mold Ejection
Drives heavy mold ejection plates in plastic injection machinery where the 2513 N push force at 0.5 MPa easily strips finished parts from deep cavities.
Pallet Stopper Gate
Acts as a robust 300 mm stroke lifting or stopping gate in high-throughput conveyor lines, physically halting loaded pallets weighing up to 128 kg.
Heavy Carton Forming
Provides the straight-line clamping power needed to fold and hold large corrugated cartons during automated case erecting and hot-melt sealing processes.
Is the Airtac SAU Standard Air Cylinder SAU80X300S the Right Cylinder?
When sizing this 80 mm bore unit against adjacent options, the 63 mm bore provides 1559 N of push force at 0.5 MPa, while stepping up to the 100 mm bore yields 3927 N at the same pressure. This SAU80X300S shares its mounting footprint and accessories—such as LB foot brackets, FA/FB flanges, and CA/CB clevises—exclusively with the AirTAC SC series. The included magnet allows seamless sensor integration.
Because this model features a 300 mm stroke, external guide rails should be used to prevent rod bending and absorb side loads, ensuring optimal seal longevity. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not function as a lock. If your application requires the load to be held during air loss or valve centering, you must install an external rod lock or a pilot-operated check valve.
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 SAU80X300S FAQ
This 80 mm bore cylinder features a 3/8" port and generates 2513 N of push force and 2268 N of pull force at 0.5 MPa. At 0.7 MPa the push force is 3518 N, and at 0.9 MPa it reaches 4523 N. The theoretical maximum force is 513 kgf at 1.0 MPa.
No, it is not dimensionally interchangeable with ISO 15552 cylinders and uses no tie-rods. Mounting accessories are compatible only with the AirTAC SC series (LB, FA, FB, CA, CB). However, because this SKU includes the -S magnet, it fully supports CMSG, DMSG, and EMSG sensors in the profile groove.
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