Airtac SAU Standard Air Cylinder SAU100X85S
The AirTAC Airtac SAU Standard Air Cylinder SAU100X85S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 85mm stroke, 1/2" 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.
- BoreØ100 mm
- Stroke85 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAU Standard Air Cylinder SAU100X85S
The AirTAC SAU100X85S is a double-acting profile-type cylinder engineered to be shorter than an ISO 15552 unit of the same bore, saving valuable machine space. It features a 100 mm bore, an 85 mm stroke, and a robust 25 mm carbon steel rod with a 20 um hard chrome layer. Operating at 0.15-1.0 MPa, it provides 3927 N of push force and 3681 N of pull force at 0.5 MPa. The 1/2" port ensures high airflow to maintain rapid cycling speeds of 30-800 mm/s.
Because seal friction consumes some energy, you should plan for a safe working load of about 2356 N, which is roughly 60% of the 0.5 MPa push rating. Factoring in a 2:1 safety margin, this actuator lifts about 200 kg vertically, letting you match it directly to heavy part weights. The included -S magnet enables position sensing via CMSG, DMSG, or EMSG switches fitted into the extruded barrel groove. For high-heat environments up to 150 C, specify the Viton H seal option instead of the standard TPU.
Airtac SAU Standard Air Cylinder SAU100X85S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU100X85S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 85 mm |
| Acting type | Double acting |
| Port size | 1/2" |
| 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, 29 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SAU100X85S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | 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 SAU100X85S Is Used
Injection Mold Ejection
Provides the heavy 3927 N push force needed to eject dense plastic parts from large injection molding machines, utilizing the built-in magnet for precise ejection confirmation.
Pallet Handling Stopper
Acts as a high-force stopper mechanism in automated palletizing lines, safely halting loaded pallets weighing up to 200 kg during vertical lift operations.
Press Ram Actuation
Drives small pneumatic press rams for metal stamping or crimping tasks, taking advantage of the compact profile length to fit within tight machine frames.
Is the Airtac SAU Standard Air Cylinder SAU100X85S the Right Cylinder?
When sizing this 100 mm bore actuator, compare it to neighboring bores to ensure optimal performance: a 63 mm bore yields 1559 N of push at 0.5 MPa, while an 80 mm bore provides 2513 N. If your application demands more power than the 100 mm bore's 3927 N, you have reached the top of the SAU standard range and must explore parallel circuits or custom solutions. Mounting is straightforward using AirTAC SC-series accessories, such as LB foot brackets, FA/FB flanges, or CA/CB clevises. Since this is an 85 mm stroke, side-load risks are minimal, but always ensure rigid rod-end alignment. Remember that the adjustable 29 mm air cushions only decelerate the piston near the end of travel; they do not function as a brake. If your system loses air or the valve centers, the load will drift, requiring an external rod lock or pilot-operated check valve for secure holding.
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 SAU100X85S FAQ
This 100 mm bore cylinder features a 1/2" port and an M20x1.5 rod thread. It delivers 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, 7068 N push at 0.9 MPa, and a theoretical maximum of 801 kgf at 1.0 MPa.
You cannot use ISO 15552 brackets, as the SAU is a distinct compact profile design that shares mounting accessories only with the AirTAC SC series (LB, FA, FB, CA, CB). However, the -S magnet allows you to install CMSG, DMSG, or EMSG sensors directly into the barrel groove.
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