Airtac SAU Standard Air Cylinder SAU80X120S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X120S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 120mm 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
- Stroke120 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X120S
The AirTAC SAU80X120S is a double-acting profile-type cylinder engineered with a 80 mm bore and 120 mm stroke. Its extruded aluminum barrel makes it shorter and more compact than an ISO 15552 cylinder of the same bore, saving valuable machine space. It delivers a robust 2513 N push force at 0.5 MPa. The integrated -S piston magnet allows direct mounting of CMSG, DMSG, or EMSG sensor switches directly into the barrel groove for precise position detection.
Featuring a 25 mm piston rod, M20x1.5 rod thread, and a 3/8 inch air port, this actuator handles demanding tasks. You can plan for a safe working load of roughly 1508 N at 0.5 MPa, accounting for seal friction and smooth travel. For vertical applications, it lifts about 128 kg with a 2:1 safety margin. The standard TPU seals operate from -20 to +70 C, while a Viton H option extends heat resistance up to 150 C.
Airtac SAU Standard Air Cylinder SAU80X120S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X120S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 120 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 SAU80X120S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×120 | 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 SAU80X120S Is Used
Injection Mold Clamping
Provides 2513 N of push force at 0.5 MPa to secure medium-sized injection mold halves, utilizing the compact profile length to fit within tight press frames.
Pallet Dispenser Gate
Actuates heavy pallet dispensing gates in automated packaging lines, where the 120 mm stroke and 128 kg vertical lift capacity easily handle stacked empty pallets.
Heavy Duty Forming Press
Drives the upper tooling die in a small metal forming press, relying on the 25 mm rod and M20x1.5 thread to withstand cyclic forming stresses.
Is the Airtac SAU Standard Air Cylinder SAU80X120S the Right Cylinder?
When sizing this 80 mm bore actuator, consider the neighboring bores: the 63 mm offers 1559 N push at 0.5 MPa, while the 100 mm provides 3927 N. This SAU80X120S sits comfortably in the middle for high-force needs. It shares mounting accessories with the AirTAC SC series, including LB foot, FA/FB flange, and CA/CB clevis brackets. Remember that a standard cylinder drifts when air is lost or a valve is centered; the adjustable 28 mm air cushions only decelerate the piston near stroke end. To hold 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 SAU80X120S FAQ
This 80 mm bore cylinder features a 3/8 inch air port and delivers 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, and it reaches a theoretical maximum of 513 kgf at 1.0 MPa.
It is not an ISO 15552 cylinder and does not share that footprint, but it uses AirTAC SC-series mounting accessories like LB, FA, and CA brackets. Because this SKU includes the -S magnet, it is fully compatible with CMSG, DMSG, and EMSG sensor switches.
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