Airtac SAI80 Standard Air Cylinder SAI80X400S
The AirTAC Airtac SAI80 Standard Air Cylinder SAI80X400S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 400mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke400 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI80 Standard Air Cylinder SAI80X400S
The AirTAC SAI80X400-S is a double-acting ISO 15552 profile cylinder featuring an 80mm bore and 400mm stroke. It provides a robust push force of 2513 N at 0.5 MPa, extending to 4523 N at 0.9 MPa, making it well-suited for heavy-duty positioning tasks.
Equipped with a magnetic piston (-S), this unit supports CMSE and DMSE sensor switches via the integrated grooves on both sides of the extruded aluminum barrel. The standard carbon steel piston rod ensures durable performance, while adjustable air cushions at both ends manage impact deceleration.
Airtac SAI80 Standard Air Cylinder SAI80X400S Technical Specifications
| Model | Airtac SAI80 Standard Air Cylinder SAI80X400S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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, 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 (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 SAI80 Standard Air Cylinder SAI80X400S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | 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 SAI80 Standard Air Cylinder SAI80X400S Is Used
Material Handling
Provides the extended reach and push strength needed to index heavy pallets along high-throughput conveyor lines.
Pressing Operations
Delivers consistent downward force for assembling industrial components or light-duty forming tasks within automated cells.
Automated Gates
Actuates large access doors or machine safety barriers, utilizing the full 400mm stroke to ensure wide clearance.
Is the Airtac SAI80 Standard Air Cylinder SAI80X400S the Right Cylinder?
This 80mm bore offers 2513 N of thrust at 0.5 MPa; stepping down to a 63mm bore reduces output to 1559 N, whereas a 100mm bore increases it to 3927 N. For this 400mm stroke, the extended rod is susceptible to bending under side loads, so utilizing an external guide rail or a guided cylinder is recommended to prevent premature wear.
Because the adjustable cushions only decelerate the piston, they do not lock the load. If your application must hold a position safely when air pressure is removed, consider the SAIL (air-released lock) or BSAI (clamp-lock) variant. This model is dimensionally interchangeable per ISO 15552, featuring a PT G3/8 port, and can be mounted using FA/FB flanges or TC trunnions.
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 SAI80 Standard Air Cylinder SAI80X400S FAQ
At 0.5 MPa, it delivers 2513 N of push force and 2268 N of pull force. If operating pressure increases to 0.9 MPa, the push force reaches 4523 N.
Yes, the SAI80X400-S is dimensionally interchangeable per ISO 15552. It serves as a drop-in replacement for other ISO 15552 profile cylinders, matching the standard 80mm mounting and G3/8 port interface.
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