Airtac SAU Standard Air Cylinder SAU80X650S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X650S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 650mm 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
- Stroke650 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X650S
The AirTAC SAU80X650S is a double-acting profile-type cylinder with an extruded aluminum barrel and a 650 mm stroke. Because it is shorter than an ISO 15552 cylinder of the same 80 mm bore, it provides a major space win in tight machine layouts. It delivers a robust 2513 N of push force and 2268 N of pull force at 0.5 MPa, operating at speeds of 30-800 mm/s through its 3/8" port.
For real-world sizing, plan for a safe working load of about 1508 N at 0.5 MPa to account for seal friction and smooth travel. Vertically, this translates to lifting about 128 kg with a 2:1 safety margin. The -S suffix means a piston magnet is included for direct mounting of CMSG, DMSG, or EMSG sensors in the profile groove. If your environment exceeds the standard -20 to +70 C range, specify the Viton H high-temperature seal option for 0-150 C operation.
Airtac SAU Standard Air Cylinder SAU80X650S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X650S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 650 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 SAU80X650S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×650 | 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 SAU80X650S Is Used
Pallet Diverting
Pushes heavy wood or metal pallets sideways on a high-throughput packaging line, utilizing the 2513 N push force within a compact machinery footprint.
Vertical Lift Gate
Raises a 120 kg material handling gate over the 650 mm travel distance, relying on the built-in magnet for precise end-of-stroke detection.
Injection Mold Ejection
Drives a large ejection plate out of a molding press, where the shorter profile length prevents interference with the press clamping mechanism.
Is the Airtac SAU Standard Air Cylinder SAU80X650S the Right Cylinder?
When sizing this 80 mm bore, compare it to its neighbors: a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore provides 3927 N. Choose the SAU80X650S when you need that middle-ground 2513 N thrust in a shorter envelope. The 28 mm adjustable air cushions at both ends decelerate the piston near stroke end, but this is not a locking mechanism; if air is lost, the piston drifts, so add an external rod lock or pilot-operated check valve for holding loads.
With a 650 mm stroke, the 25 mm rod is susceptible to bending under lateral stress, so an external guide rail is strongly recommended to prevent side-loading damage. Mounting is straightforward using AirTAC SC-series accessories like LB foot brackets, FA/FB flanges, or CA/CB clevises. The M20x1.5 rod thread handles the 513 kgf theoretical maximum force at 1.0 MPa.
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 SAU80X650S FAQ
This 80 mm bore cylinder features a 3/8" port and an M20x1.5 rod thread. It 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.
No, it is not dimensionally interchangeable with ISO 15552 cylinders, but it is specifically designed to share mounting accessories with the AirTAC SC series (LB, FA, FB, CA, CB). Because this SKU includes the -S magnet, you can mount CMSG, DMSG, or EMSG switches directly into the barrel groove.
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