Airtac SAU Standard Air Cylinder SAU80X350
The AirTAC Airtac SAU Standard Air Cylinder SAU80X350 is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 350mm 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
- Stroke350 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X350
The AirTAC SAU80X350 is a double-acting profile-type cylinder featuring a 350 mm stroke and an extruded aluminum barrel. Its integrated profile design is physically shorter than an ISO 15552 cylinder of the same bore, delivering a space-saving advantage in tight machine layouts. It operates at 30-800 mm/s, generating a push force of 2513 N and a pull force of 2268 N at 0.5 MPa. The unit uses a 3/8" port and an M20x1.5 rod thread.
For practical sizing, plan for a safe working load of about 1508 N at 0.5 MPa, accounting for seal friction and smooth travel. This equates to lifting roughly 128 kg vertically with a 2:1 safety margin. Because this SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG position switches. 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 SAU80X350 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X350 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 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 SAU80X350
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×350 | 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 SAU80X350 Is Used
Injection Mold Ejection
Drives heavy ejector pins on a 150-ton press, using the 350 mm stroke to clear deep mold cavities safely without standard ISO length restrictions.
Pallet Dispenser Pusher
Indexes empty pallets into a packaging line, utilizing the 2513 N push force at 0.5 MPa to slide heavy wooden pallets smoothly into position.
Heavy Case Divertor
Actuates a diverting arm on a logistics conveyor to route dense freight cartons, relying on the 28 mm adjustable air cushion to stop the 350 mm extension gently.
Is the Airtac SAU Standard Air Cylinder SAU80X350 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. This SAU80X350 sits comfortably in the middle for heavy-duty tasks. It shares mounting accessories with the AirTAC SC series, allowing you to use LB foot mounts, FA/FB flanges, or CA/CB clevises. For this 350 mm stroke, add an external guide to prevent rod bending and absorb side loads, as long strokes are vulnerable to deflection under heavy lateral forces.
Remember that a standard cylinder does not hold its position if air pressure drops or the valve centers; the piston will drift. The adjustable 28 mm air cushions at both ends only serve to decelerate the piston near the end of travel, acting as a shock absorber rather than a braking lock. To suspend a load safely mid-stroke, 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 SAU80X350 FAQ
At 0.5 MPa, the push force is 2513 N and the pull force is 2268 N. 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. It features a 3/8" port, an M20x1.5 rod thread, and operates at 30-800 mm/s.
It is not an ISO 15552 cylinder, but it shares mounting dimensions with the AirTAC SC series, so you can use SC-series LB, FA, FB, CA, and CB brackets. Because this specific SKU lacks the -S magnet, it cannot host CMSG, DMSG, or EMSG magnetic switches.
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