Airtac SAI100 Standard Air Cylinder SAI100BX400S
The AirTAC Airtac SAI100 Standard Air Cylinder SAI100BX400S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI100 Standard Air Cylinder SAI100BX400S
The AirTAC SAI100X400-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 3927 N of push force at 0.5 MPa, this 100 mm bore unit is built to handle substantial workloads over its 400 mm stroke. The extruded aluminum barrel design omits traditional tie rods, providing a clean exterior that resists contamination.
This specific configuration includes a SUS304 stainless steel rod (material code B) for superior corrosion resistance in harsh environments. It features PT tapered ports and is pre-fitted with a magnet (-S), allowing seamless integration with CMSE or DMSE sensor switches mounted directly into the dual side grooves.
Airtac SAI100 Standard Air Cylinder SAI100BX400S Technical Specifications
| Model | Airtac SAI100 Standard Air Cylinder SAI100BX400S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 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 SAI100BX400S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×400 | 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 SAI100BX400S Is Used
Heavy-Duty Pressing
Ideal for applying sustained clamping or pressing force up to 3927 N in automotive assembly and metal fabrication lines.
Material Diversion
The 400 mm stroke provides the extended reach needed to actuate large diverter arms or heavy-duty sorting gates on high-capacity conveyor systems.
Robotic Gripper Actuation
The SUS304 rod and integrated magnet make it highly suitable for washdown packaging environments where end-of-arm tooling requires precise position feedback.
Is the Airtac SAI100 Standard Air Cylinder SAI100BX400S the Right Cylinder?
Stepping up to the 125 mm bore yields 6136 N at 0.5 MPa, which is necessary if your load exceeds the 100 mm capacity. Conversely, dropping to an 80 mm bore provides 2513 N, offering a lighter footprint for lower-force tasks. Because this model features a 400 mm stroke, the extended unsupported rod is highly susceptible to bending under side loads; utilizing an external guide rail or a fully guided cylinder mechanism is critical to prevent premature rod-bearing wear.
As a true ISO 15552 profile cylinder, this unit is dimensionally interchangeable with other ISO 15552 cylinders, ensuring a straightforward drop-in replacement. It uses a G1/2 port, an M20x1.5 rod thread, and supports standard mounting accessories like FA flanges or TC trunnions. Note that the adjustable air cushions only decelerate the piston near stroke ends; they do not hold the load. If pneumatic pressure is lost, the rod will drift. For secure load holding without live pressure, specify the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock.
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 SAI100BX400S FAQ
At 0.5 MPa, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. If operated at 0.7 MPa, the push force increases to 5497 N.
No. The standard SAI cylinder does not hold its position without live air pressure. The adjustable air cushions only slow the piston near the end of the stroke. For fail-safe load holding, you should use the SAIL variant with an air-released lock or an external rod lock.
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