Airtac SAU Standard Air Cylinder SAU80X550S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X550S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 550mm 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
- Stroke550 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X550S
The AirTAC SAU80X550S is a double-acting profile-type cylinder with a 550 mm stroke and an 80 mm bore. It uses an extruded aluminum barrel that is noticeably shorter than an ISO 15552 cylinder of the same bore, offering a distinct space advantage in tight machine layouts. It features a 25 mm carbon steel rod, a 3/8 inch air port, and an M20x1.5 rod-end thread. Operating at 0.15-1.0 MPa, it generates a 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, which accounts for seal friction and smooth travel at 0.5 MPa. Vertically, this translates to lifting about 128 kg with a 2:1 safety margin. The -S suffix means a piston magnet is built in, allowing you to mount CMSG, DMSG, or EMSG sensors directly into the barrel groove 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 SAU80X550S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X550S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 550 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 SAU80X550S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×550 | 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 SAU80X550S Is Used
Pallet Diversion
Pushes heavy loaded pallets sideways onto secondary packaging lines using its 2513 N push force at 0.5 MPa.
Vertical Lift Gate
Raises and lowers a 120 kg mezzanine safety gate, relying on the 550 mm stroke and a 2:1 vertical lift margin.
Injection Mold Ejection
Drives a secondary ejector pin plate over a 550 mm span to clear large automotive interior panels from molds.
Is the Airtac SAU Standard Air Cylinder SAU80X550S the Right Cylinder?
When sizing this 80 mm bore, compare it to its neighbors: a 63 mm bore provides 1559 N push at 0.5 MPa, while a 100 mm bore yields 3927 N. This SAU80X550S fits applications requiring substantial force without stepping up to the largest footprint. The included -S magnet enables electronic or reed switch integration. For mounting, it shares identical LB foot, FA/FB flange, and CA/CB clevis accessories with the AirTAC SC series.
Because this model has a 550 mm stroke, the extended 25 mm rod is susceptible to bending under lateral stress; always use an external guide rail to prevent side loads and premature seal wear. Additionally, the adjustable 28 mm air cushions only decelerate the piston near the end of travel. They do not function as a brake or lock. 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 SAU80X550S FAQ
This 80 mm bore cylinder has a 3/8 inch air port and an M20x1.5 rod thread. At 0.5 MPa it pushes with 2513 N and pulls with 2268 N. At 0.7 MPa the push force is 3518 N, and the theoretical maximum force is 513 kgf at 1.0 MPa.
It is not an ISO 15552 cylinder, but it is more compact and uses AirTAC SC-series mounting accessories like LB, FA, and CA brackets. The -S suffix indicates a built-in magnet, allowing you to use CMSG, DMSG, or EMSG sensors in the profile barrel groove.
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