Airtac SAU Standard Air Cylinder SAU80X55
The AirTAC Airtac SAU Standard Air Cylinder SAU80X55 is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 55mm 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
- Stroke55 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X55
The AirTAC SAU80X55 is a double-acting profile-type cylinder featuring a 80 mm bore and 55 mm stroke. Its extruded aluminum barrel makes it shorter and more compact than an ISO 15552 cylinder of the same bore, providing a distinct space advantage in tight machine layouts. It delivers a robust 2513 N push force at 0.5 MPa, utilizing a 3/8" port and an M20x1.5 rod thread.
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. In vertical lift applications, this translates to lifting about 128 kg with a 2:1 safety margin. This specific SKU lacks the -S magnet, meaning it cannot accept CMSG, DMSG, or EMSG sensor switches. If sensing is required, you must select a magnet-equipped model. For high-temperature environments up to 150 C, specify the Viton H seal option.
Airtac SAU Standard Air Cylinder SAU80X55 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X55 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 55 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 SAU80X55
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×55 | 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 SAU80X55 Is Used
Injection Mold Clamping
Provides heavy 2513 N clamping force for securing injection mold halves, utilizing the compact profile to fit within tight press enclosures.
Pallet Stopper Gate
Acts as a robust stopping gate on heavy-duty pallet conveyors, easily handling the impact of 128 kg vertical loads with appropriate safety margins.
Stamping Press Feed
Drives heavy material feed mechanisms in stamping presses where the shorter body length prevents interference with adjacent tooling.
Is the Airtac SAU Standard Air Cylinder SAU80X55 the Right Cylinder?
When sizing this unit, compare it against its neighbors: a 63 mm bore yields 1559 N push at 0.5 MPa, while stepping up to a 100 mm bore provides 3927 N. The 80 mm bore is ideal when you need substantial force without the bulk of the 100 mm class. Mounting is straightforward using AirTAC SC-series accessories, including LB foot, FA/FB flange, and CA/CB clevis brackets. You can also utilize I, Y, F, or U rod knuckles.
Keep in mind that a standard SAU cylinder does not hold its position if air pressure is lost or the valve is centered; the piston will drift. The adjustable 28 mm air cushions at both ends only decelerate the piston near the stroke endpoints and do not function as a braking lock. If your application requires a held load, integrate 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 SAU80X55 FAQ
The SAU80X55 features a 3/8" port and 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. The theoretical maximum force is 513 kgf at 1.0 MPa.
It is not an ISO 15552 cylinder, so you must use AirTAC SC-series mounting accessories like LB, FA, or CA brackets. Additionally, this specific SKU lacks a magnet, so it cannot accept CMSG, DMSG, or EMSG sensors; you need an -S model for sensing.
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