Airtac SAU Standard Air Cylinder SAU80X85S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X85S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 85mm 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
- Stroke85 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X85S
The AirTAC SAU80X85S is a double-acting profile-type cylinder engineered for heavy automation. It delivers a robust 2513 N push and 2268 N pull at 0.5 MPa. Its extruded aluminum barrel makes it shorter than an ISO 15552 cylinder of the same bore, saving valuable machine space. The 3/8 inch port and M20x1.5 rod thread ensure high flow and secure mounting for demanding cycles.
Equipped with a piston magnet (-S), this unit supports CMSG, DMSG, and EMSG electronic switches via the integrated sensor groove. For real-world sizing, plan for a safe working load of roughly 1508 N at 0.5 MPa to account for seal friction. In a vertical lift scenario, it can reliably raise about 128 kg with a 2:1 safety margin. If your environment exceeds standard limits, the Viton H seal option extends operation to 150 C.
Airtac SAU Standard Air Cylinder SAU80X85S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X85S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 85 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 SAU80X85S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×85 | 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 SAU80X85S Is Used
Stamping Press Feed
Pushes metal blanks into a forming die with 2513 N of force, utilizing the compact profile to fit within tight press enclosures.
Pallet Stopper Gate
Acts as a heavy-duty stop on a conveyor line, absorbing kinetic energy via its adjustable air cushions when halting loaded pallets.
Injection Mold Clamp
Secures mold halves during low-pressure closing sequences, relying on the -S magnet and DMSG sensors to confirm position.
Is the Airtac SAU Standard Air Cylinder SAU80X85S 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. Choose the SAU80X85S when your application requires moderate force in a tighter footprint. The unit utilizes AirTAC SC-series mounting accessories, including LB foot, FA/FB flange, and CA/CB clevis options. Because this 85 mm stroke is relatively short, side-load guide concerns are minimal.
Remember that a standard cylinder cannot hold a load if air pressure drops or the valve is centered; the piston will drift. The adjustable 28 mm air cushions only decelerate the piston near the end of travel to prevent impact damage. To suspend a load securely, 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 SAU80X85S FAQ
This 80 mm bore cylinder features a 3/8 inch port and generates 2513 N push and 2268 N pull at 0.5 MPa. At 0.7 MPa it pushes 3518 N, and at 0.9 MPa it pushes 4523 N. The theoretical maximum force is 513 kgf at 1.0 MPa.
No, it is not dimensionally interchangeable with ISO 15552 cylinders. You must use AirTAC SC-series mounting accessories like LB, FA, or CB brackets. However, because this SKU includes the -S magnet, you can mount CMSG, DMSG, or EMSG sensors directly into the barrel groove.
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