Airtac SAU Standard Air Cylinder SAU80X85
The AirTAC Airtac SAU Standard Air Cylinder SAU80X85 is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 85mm 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
- Stroke85 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X85
The AirTAC SAU80X85 is a double-acting profile-type standard cylinder featuring an extruded aluminum barrel. It is engineered to be shorter than an ISO 15552 cylinder of the same bore, providing a significant space advantage in tight machine layouts. It delivers a robust push force of 2513 N and a pull force of 2268 N at 0.5 MPa, operating via a 3/8" port with a 25 mm rod and M20x1.5 thread.
For practical sizing, plan for a safe working load of roughly 1508 N, which accounts for seal friction and smooth travel at 0.5 MPa. In a vertical lifting scenario, this translates to lifting about 128 kg with a 2:1 safety margin. Because this specific SKU lacks the -S magnet, it cannot accept CMSG, DMSG, or EMSG sensor switches. If your application involves heat, you can specify the Viton H high-temperature seal option to raise the operating range from -20 to +70 C up to 0-150 C.
Airtac SAU Standard Air Cylinder SAU80X85 Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X85 |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 85 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 SAU80X85
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×85 | 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 SAU80X85 Is Used
Injection Mold Clamping
Provides 2513 N of push force at 0.5 MPa to secure mid-sized injection mold halves, utilizing the shorter profile to fit within compact press enclosures.
Pallet Stopper Gate
Acts as a heavy-duty stopping gate on roller conveyors, safely halting loaded pallets up to 128 kg in vertical lift scenarios without requiring excessive space.
Press Ejection System
Ejects formed metal parts from a 50-ton press, relying on the 28 mm adjustable air cushions to absorb impact and protect the tooling at cycle speeds up to 800 mm/s.
Is the Airtac SAU Standard Air Cylinder SAU80X85 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. Choose the SAU80X85 when your load falls comfortably within its 2513 N capacity. This model shares its mounting footprint with AirTAC SC-series accessories, including LB foot, FA/FB flange, and CA/CB clevis brackets. Note that the adjustable air cushion at both ends only decelerates the piston near stroke end; it does not act as a brake. Because a plain cylinder drifts when air is lost or a valve is centered, you must add an external rod lock or pilot-operated check valve to hold a load safely in place.
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 SAU80X85 FAQ
The SAU80X85 features a 3/8" port and generates 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. The theoretical maximum force is 513 kgf at 1.0 MPa.
No, the SAU is not an ISO 15552 cylinder and uses AirTAC SC-series mounting accessories like LB, FA, and CA brackets. Additionally, because this specific SKU lacks the -S magnet, it cannot support CMSG, DMSG, or EMSG magnetic switches.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAU Standard Air Cylinder SAU80X85
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.