Airtac SAI100 Standard Air Cylinder SAI100AX425
The AirTAC Airtac SAI100 Standard Air Cylinder SAI100AX425 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 425mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ100 mm
- Stroke425 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI100 Standard Air Cylinder SAI100AX425
The AirTAC SAI100X425 is a double-acting ISO 15552 profile cylinder engineered to deliver 3927 N of push force at 0.5 MPa and 7068 N at 0.9 MPa. With a 100 mm bore and 425 mm stroke, this unit is tailored for heavy-duty positioning tasks requiring substantial air pressure over a long travel distance. The extruded aluminum barrel omits tie-rods, presenting a clean profile that matches standardized ISO 15552 mounting dimensions exactly.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for superior resistance to moisture and corrosion in humid industrial environments. It utilizes PT tapered port threads for a positive, leak-free pneumatic seal. Because no magnet (-S) is specified, it operates without integrated magnetic sensing, relying solely on external mechanical stops or physical limit switches for end-of-travel detection.
Airtac SAI100 Standard Air Cylinder SAI100AX425 Technical Specifications
| Model | Airtac SAI100 Standard Air Cylinder SAI100AX425 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 425 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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, 36 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
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 SAI100 Standard Air Cylinder SAI100AX425
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×425 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAI100 Standard Air Cylinder SAI100AX425 Is Used
Automotive Body Welding
Positions and clamps heavy vehicle chassis panels during robotic welding operations, utilizing the 100 mm bore's 3927 N thrust to secure high-strength steel against fixtures.
Pallet Diversion
Actuates a heavy-duty diverter arm on a packaging line to route loaded pallets weighing several hundred kilograms into secondary processing lanes.
Press Ejection
Drives a robust knockout pin to eject dense molded components from a hydraulic forming press, requiring the full 425 mm stroke to clear the mold bed.
Is the Airtac SAI100 Standard Air Cylinder SAI100AX425 the Right Cylinder?
When selecting this actuator, compare its 3927 N output at 0.5 MPa against the smaller 80 mm bore, which provides 2513 N under identical pressure. If the 100 mm bore's thrust is excessive for your payload, stepping down to the 80 mm variant saves compressed air volume. Conversely, if your system requires upward of 6000 N, the 125 mm bore offers 6136 N at 0.5 MPa.
Because the 425 mm stroke creates a long unsupported rod extension, side loads will induce severe bending stresses on the rod bearing. To prevent premature seal wear and piston drift, pair this cylinder with an external linear guide or choose a guided cylinder module. Note that the standard adjustable air cushions at both ends only decelerate the piston near stroke limits; they do not hold a load if air pressure drops. For true position holding, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/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/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAI100 Standard Air Cylinder SAI100AX425 FAQ
At 0.5 MPa operating pressure, this 100 mm bore double-acting cylinder generates a theoretical push force of 3927 N and a pull force of 3681 N. If pressure is increased to 0.9 MPa, the push force reaches 7068 N.
Yes, the SAI100X425 is a genuine ISO 15552 profile cylinder, making its mounting interface and PT G1/2 port dimensions fully interchangeable with other ISO 15552 standard actuators of the same bore size. You can drop it into existing FA, FB, or TC mounting footprints without modifying the machine frame.
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