Airtac SAU Standard Air Cylinder SAU80X400S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X400S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 400mm 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
- Stroke400 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X400S
The AirTAC SAU80X400S is a double-acting profile-type cylinder featuring a 400 mm stroke and a 3/8" port. Its extruded aluminum barrel makes it shorter and more compact than an ISO 15552 cylinder of the same 80 mm bore, providing a distinct space advantage in tight machine layouts. It delivers a robust push force of 2513 N and a pull force of 2268 N at 0.5 MPa.
For practical sizing, plan for a safe working load of roughly 1508 N at 0.5 MPa to account for seal friction, which translates to lifting about 128 kg vertically with a 2:1 safety margin. The included -S piston magnet enables CMSG, DMSG, or EMSG sensors to ride directly in the profile groove for precise position detection. If your environment exceeds the standard -20 to +70 C range, the Viton H high-temperature seal option extends operation up to 150 C.
Airtac SAU Standard Air Cylinder SAU80X400S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X400S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 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 SAU80X400S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×400 | 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 SAU80X400S Is Used
Automotive Body Panel Transfer
Drives a 400 mm horizontal shifting mechanism to move heavy stamped metal panels between welding stations with precise positioning.
Palletized Goods Ejection
Pushes loaded pallets off a heavy-duty roller conveyor using the 2513 N push force, clearing the line for the next packaging cycle.
Injection Mold Extraction
Extends 400 mm to reach deep into a large injection molding machine to extract bulky plastic automotive interior components safely.
Is the Airtac SAU Standard Air Cylinder SAU80X400S 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. This SAU80X400S fits perfectly in the middle for medium-to-heavy automation. It shares mounting accessories with the AirTAC SC series, allowing you to use LB foot brackets, FA/FB flanges, or CA/CB clevises.
Because this unit features a 400 mm stroke, external guide rails are strongly recommended to prevent rod bending and premature seal wear under side loads. Additionally, a standard double-acting cylinder will drift if air pressure is lost or the valve is centered; the adjustable air cushion only decelerates the piston near the stroke ends and does not act as a brake. Install an external rod lock or pilot-operated check valve if you need to hold a load securely in place.
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 SAU80X400S FAQ
This 80 mm bore cylinder features a 3/8" port and an M20x1.5 rod thread. It generates a push force of 2513 N and a pull force of 2268 N at 0.5 MPa. At 0.7 MPa the push force is 3518 N, and the theoretical maximum force is 513 kgf at 1.0 MPa.
No, it is not dimensionally interchangeable with ISO 15552 cylinders, but it shares mounting accessories with the AirTAC SC series (LB, FA, FB, CA, CB). The -S suffix indicates a built-in magnet, allowing you to mount CMSG, DMSG, or EMSG switches directly into the extruded profile barrel groove.
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