Airtac SAU Standard Air Cylinder SAU80X375S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X375S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 375mm 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
- Stroke375 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X375S
The AirTAC SAU80X375S is a double-acting profile-type cylinder featuring a 375 mm stroke and an extruded aluminum barrel. Because its body is shorter than an ISO 15552 cylinder of the same bore, it saves valuable machine space while delivering 2513 N of push force at 0.5 MPa. The integrated piston magnet allows direct mounting of CMSG, DMSG, or EMSG switches into the profile groove for precise position detection.
Equipped with a 25 mm piston rod and a 3/8" port, this unit operates at speeds from 30-800 mm/s and includes adjustable air cushions at both ends to smooth out stroke transitions. For practical sizing, plan for a safe working load of roughly 1508 N at 0.5 MPa to account for seal friction, which translates to lifting about 128 kg vertically with a 2:1 safety margin. If your environment exceeds the standard -20 to +70 C range, the Viton H high-temperature seal option extends operation up to 150 C.
Airtac SAU Standard Air Cylinder SAU80X375S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X375S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 375 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 SAU80X375S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×375 | 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 SAU80X375S Is Used
Injection Mold Ejection
Provides the 2513 N push force needed to eject heavy plastic parts from molding machines, utilizing the 375 mm stroke to clear tall die cavities safely.
Pallet Divider Feeding
Separates and feeds large pallets or sheet materials on packaging lines, where the compact profile length helps fit the actuator into tight conveyor frames.
Heavy Product Sorting
Pushes heavy automotive components or metal castings off a main conveyor belt, relying on the adjustable air cushions to prevent end-of-stroke impact damage.
Is the Airtac SAU Standard Air Cylinder SAU80X375S 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 stepping up to a 100 mm bore provides 3927 N. This SAU80X375S includes the -S magnet for sensors and uses the same LB foot, FA/FB flange, and CA/CB clevis mounting accessories as the AirTAC SC series. Keep in mind that the standard adjustable air cushion only decelerates the piston near the end of travel; it does not function as a brake, so the rod will drift if air is lost. To hold a load securely, install an external rod lock or a pilot-operated check valve.
Because the 375 mm stroke is relatively long, avoid applying excessive side loads to the rod. Always guide the driven payload externally to prevent rod bending and premature seal wear.
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 SAU80X375S FAQ
This 80 mm bore cylinder has a 3/8" port and generates 2513 N push and 2268 N pull at 0.5 MPa. At 0.7 MPa the push force is 3518 N, and the theoretical maximum force is 513 kgf at 1.0 MPa.
No, it is not an ISO 15552 cylinder, but it is more compact than one. Its mounting accessories, such as LB foot brackets and FA flanges, are shared with the AirTAC SC series. The -S suffix means it has a magnet for CMSG, DMSG, or EMSG sensors.
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