Airtac SAU Standard Air Cylinder SAU80X550
The AirTAC Airtac SAU Standard Air Cylinder SAU80X550 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 SAU80X550
The AirTAC SAU80X550 is a double-acting profile-type cylinder featuring an extruded aluminum barrel that is notably shorter than an ISO 15552 unit 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 efficiently between 30-800 mm/s. This specific configuration includes a 550 mm stroke, a Ø25 mm carbon steel rod with an M20x1.5 thread, and a 3/8 inch port.
Because this SKU lacks the -S magnet suffix, it cannot host CMSG, DMSG, or EMSG magnetic switches. For practical 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, which equates to lifting about 128 kg vertically with a 2:1 safety margin. The standard TPU seals handle -20 to +70 C, though a Viton H option extends heat resistance up to 150 C.
Airtac SAU Standard Air Cylinder SAU80X550 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X550 |
|---|---|
| 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 SAU80X550
| 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 SAU80X550 Is Used
Pallet Diversion
Pushes heavy loaded pallets sideways onto secondary packaging lines using its 2513 N push force at 0.5 MPa without demanding excessive longitudinal machine envelope.
Injection Mold Ejection
Drives large molded plastic parts out of heavy tooling, where the 550 mm stroke clears deep cavities and the 28 mm adjustable air cushion prevents harsh end-of-stroke impacts.
Vertical Lift Gate
Actuates a 120 kg material handling safety gate, safely lifting the load with a 2:1 margin while relying on an external check valve to hold position during air pressure drops.
Is the Airtac SAU Standard Air Cylinder SAU80X550 the Right Cylinder?
When sizing this 80 mm bore, compare it against adjacent options: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore provides 3927 N. This model shares mounting footprint compatibility with the AirTAC SC series, accepting LB foot, FA/FB flange, and CA/CB clevis accessories. Note that the standard air cushion only decelerates the piston near stroke end; it does not function as a brake. If your application requires holding a load vertically during air loss or valve centering, you must integrate an external rod lock or a pilot-operated check valve to prevent drift.
Given the 550 mm stroke, carefully manage side loads. Long strokes amplify rod-bending stresses, so utilizing an external guide rail or linear bearing is highly recommended to prevent premature seal wear and piston scoring.
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 SAU80X550 FAQ
The SAU80X550 generates 2513 N push and 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. It uses a 3/8 inch port, features a Ø25 mm rod with an M20x1.5 thread, and operates at speeds of 30-800 mm/s.
Because this specific SKU lacks the -S suffix, it has no internal magnet and cannot support CMSG, DMSG, or EMSG magnetic switches. For mechanical mounting, it shares the same accessory dimensions as the AirTAC SC series, allowing the use of LB foot brackets, FA/FB flanges, CA/CB clevises, and I/Y/F/U rod knuckles.
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