Airtac SAU Standard Air Cylinder SAU100X425S
The AirTAC Airtac SAU Standard Air Cylinder SAU100X425S is a genuine double-acting profile-type standard air cylinder with a Ø100mm bore and 425mm 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
- Stroke425 mm
- Port size1/2"
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SAU Standard Air Cylinder SAU100X425S
The AirTAC SAU100X425S is a double-acting profile-type cylinder engineered for heavy-duty automation. It delivers a substantial push force of 3927 N and a pull force of 3681 N at 0.5 MPa. Its extruded aluminium barrel design is inherently shorter and more compact than an ISO 15552 cylinder of the same bore, providing a critical space advantage in tight machine layouts. The unit operates on a 1/2" port with a 25 mm hard-chrome rod and M20x1.5 thread.
For practical sizing, plan for a safe working load of about 2356 N, which accounts for seal friction at 0.5 MPa. In vertical lift scenarios, this translates to lifting approximately 200 kg with a 2:1 safety margin. This specific SKU includes the -S magnet, enabling direct mounting of CMSG, DMSG, or EMSG sensors in the integrated profile groove. For high-temperature environments up to 150 C, you can specify the Viton H seal option instead of the standard TPU.
Airtac SAU Standard Air Cylinder SAU100X425S Technical Specifications
| Model | Airtac SAU Standard Air Cylinder SAU100X425S |
|---|---|
| Series | SAU profile-type cylinder |
| Bore size | Ø100 mm |
| Stroke | 425 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 SAU100X425S
| SAU | Profile-type standard cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×425 | 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 SAU100X425S Is Used
Heavy Stamping Press
Drives a 180 kg upper die in an automotive stamping line, utilising the 3927 N push force to form steel panels reliably.
Pallet Lift Station
Elevates loaded pallets vertically, where the compact profile length saves floor space and the 425 mm stroke provides the necessary reach.
Injection Mould Ejection
Pushes heavy plastic parts out of large injection moulding tools, benefiting from the smooth 30-800 mm/s speed range.
Is the Airtac SAU Standard Air Cylinder SAU100X425S the Right Cylinder?
When sizing this 100 mm bore, evaluate your force margins: the next size down (80 mm) provides 2513 N push at 0.5 MPa, while this 100 mm unit hits 3927 N, making it ideal when the 80 mm class is insufficient. Because the 425 mm stroke is substantial, always use an external guide to prevent rod bending and premature seal wear from side loads. This model uses the same LB foot, FA flange, and CA clevis accessories as the AirTAC SC series. Remember that the adjustable air cushion only decelerates the piston near the end of travel; it does not act as a brake, so install an external rod lock or pilot-operated check valve if you need to hold a load vertically during air loss.
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 SAU100X425S FAQ
This 100 mm bore cylinder features a 1/2" port and delivers a push force of 3927 N and a pull force of 3681 N at 0.5 MPa. At 0.7 MPa, the push force is 5497 N. The theoretical maximum force is 801 kgf at 1.0 MPa.
Yes, it shares mounting dimensions with the AirTAC SC series for foot and flange attachments. Because this SKU has the -S magnet, you can install CMSG, DMSG, or EMSG sensors directly into the barrel groove.
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