Airtac SAU Standard Air Cylinder SAU80X135S
The AirTAC Airtac SAU Standard Air Cylinder SAU80X135S is a genuine double-acting profile-type standard air cylinder with a Ø80mm bore and 135mm 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
- Stroke135 mm
- Port size3/8"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 28 mm
About the Airtac SAU Standard Air Cylinder SAU80X135S
The AirTAC SAU80X135S is a double-acting profile-type cylinder engineered to be physically shorter than an ISO 15552 unit of the same bore, yielding a significant space advantage in tight machine layouts. It delivers a robust 2513 N of push force and 2268 N of pull force at 0.5 MPa, operating with a 3/8" port and a 25 mm piston rod. The integrated extruded aluminum barrel includes a sensor groove, and this specific SKU features a built-in piston magnet (-S) to enable CMSG, DMSG, or EMSG electronic switches for precise end-position detection.
For practical sizing, plan for a safe working load of roughly 1508 N at 0.5 MPa, which accounts for seal friction and ensures smooth travel rather than relying on the absolute maximum rating. In a vertical lifting scenario, this translates to lifting about 128 kg safely with a 2:1 margin. If your application involves extreme thermal conditions up to 150 C, you can specify the Viton H seal option instead of the standard TPU.
Airtac SAU Standard Air Cylinder SAU80X135S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU80X135S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø80 mm |
| Stroke | 135 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 SAU80X135S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×135 | 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 SAU80X135S Is Used
Injection Mold Extraction
Provides the 2513 N push force required to positively eject heavy molded parts from stationary platens, utilizing the compact profile to fit within tight press clamping areas.
Palletized Load Pusher
Drives heavy cartons onto accumulation rollers in high-throughput logistics lines, where the 135 mm stroke and 3/8" port deliver rapid, high-force actuation.
Heavy-Duty Parts Clamping
Secures thick steel plates during machining operations, using the -S magnet and DMSG sensors to confirm clamp engagement before the spindle starts cutting.
Is the Airtac SAU Standard Air Cylinder SAU80X135S the Right Cylinder?
When sizing this 80 mm bore, evaluate your force margins both ways: stepping down to a 63 mm bore drops the 0.5 MPa push force to 1559 N, while stepping up to a 100 mm bore increases it to 3927 N. Because this 135 mm stroke is below the 300 mm threshold, severe rod-bending side loads are less of a concern, but you should still guide the load to prevent binding. This model includes the -S magnet for switch readiness and accepts AirTAC SC-series mounting accessories, such as LB foot brackets, FA/FB flanges, or CA/CB clevises.
Remember that a standard double-acting cylinder naturally vents and drifts when air pressure is lost or the control valve is centered. The adjustable 28 mm air cushions at both ends only serve to decelerate the piston near the stroke ends; they do not function as a braking mechanism. To sustain a suspended load 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 SAU80X135S FAQ
This 80 mm bore cylinder provides 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 the theoretical maximum force is 513 kgf at 1.0 MPa. It uses a 3/8" port, features a 25 mm rod with an M20x1.5 thread, and operates at speeds between 30-800 mm/s.
The extruded aluminum profile barrel makes the SAU80X135S shorter than a standard ISO 15552 cylinder of the same bore, saving valuable machine space without sacrificing power. It is dimensionally compatible with AirTAC SC-series mounting accessories, including LB foot mounts and FA flanges, and the included -S magnet allows direct mounting of CMSG or EMSG sensors along the barrel groove.
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