Airtac SAU Standard Air Cylinder SAU80X20S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X20S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 20mm 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
- Stroke20 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X20S
The AirTAC SAU80X20S is a double-acting profile-type cylinder engineered for tight machinery spaces, offering a shorter overall length than an ISO 15552 unit of the same bore. It delivers a robust 2513 N push force at 0.5 MPa, supported by a Ø25 mm rod and a 3/8" port. The integrated magnet (-S) enables direct mounting of CMSG, DMSG, or EMSG switches along the extruded aluminum barrel groove.
For practical sizing, plan for a safe working load of roughly 1508 N at 0.5 MPa, accounting for seal friction and smooth travel. In a vertical lift scenario, this translates to hoisting about 128 kg safely with a 2:1 margin. The standard TPU seals handle temperatures from -20 to +70 C, while a Viton H option extends this range up to 150 C for high-heat environments.
Airtac SAU Standard Air Cylinder SAU80X20S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X20S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 20 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 SAU80X20S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×20 | 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 SAU80X20S Is Used
Injection Mold Clamping
Applies the 2513 N push force to secure small mold halves in packaging machinery, utilizing the short 20 mm stroke for rapid, repetitive cycling.
Heavy Part Diverter
Pushes heavy automotive components off a main assembly line conveyor, leveraging the 128 kg vertical lift equivalent to redirect substantial weights.
Pallet Stopper Gate
Acts as a high-strength stopping barrier in logistics sorting hubs, absorbing pallet impacts with its 28 mm adjustable air cushion before retracting.
Is the Airtac SAU Standard Air Cylinder SAU80X20S the Right Cylinder?
When sizing this 80 mm bore, consider the neighboring options: stepping down to a 63 mm bore yields 1559 N push at 0.5 MPa, while moving up to a 100 mm bore provides 3927 N. Because this SKU features the -S magnet, it is fully compatible with CMSG, DMSG, and EMSG sensors for position detection. Mounting hardware matches the AirTAC SC series, allowing the use of LB foot brackets, FA/FB flanges, or CA/CB clevises.
Remember that a standard SAU cylinder will drift if air pressure is lost or the valve is centered, as the adjustable air cushion only decelerates the piston near the stroke end rather than locking it. To suspend a load securely during an air loss event, incorporate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
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 SAU80X20S FAQ
This 80 mm bore cylinder features a 3/8" port and a Ø25 mm piston rod. 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 force of 513 kgf at 1.0 MPa.
No, it is not dimensionally interchangeable with ISO 15552 standards, though it is notably more compact. Mounting accessories must match the AirTAC SC series (such as LB, FA, or CB brackets). Because this is an -S model with a built-in magnet, you can attach CMSG, DMSG, or EMSG sensors directly into the barrel groove.
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