Airtac SAI40 Standard Air Cylinder SAI40AX800
The AirTAC SAI40 Standard Air Cylinder SAI40AX800 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 800mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke800 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI40 Standard Air Cylinder SAI40AX800
The AirTAC SAI40X800 is a double-acting ISO 15552 profile cylinder engineered for long-trroke linear motion. It provides a robust push force of 628 N at 0.5 MPa and 879 N at 0.7 MPa, making it well-suited for automated material handling over extended distances. The extruded aluminum barrel design omits tie rods for a clean, compact exterior.
This specific configuration incorporates a SUS420J2 stainless steel piston rod (material code A) for superior corrosion resistance in humid or mildly chemically exposed environments. Fluid connections use PT tapered thread ports sized at G1/4. Since no magnet (-S) is specified, this unit operates without electronic position sensing via CMSE or DMSE switches.
Airtac SAI40 Standard Air Cylinder SAI40AX800 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX800 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 800 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI40 Standard Air Cylinder SAI40AX800
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×800 | 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 SAI40 Standard Air Cylinder SAI40AX800 Is Used
Extended Transfer Lines
Pushes products or pallets across 800 mm gaps between conveyor sections where high speed and moderate force are required.
Vertical Lift Gates
Actuates lightweight lifting barriers or sorting diverters, utilizing the 628 N push force at 0.5 MPa to move loads reliably.
Long-Stroke Packaging Arms
Extends film wrapping or sealing mechanisms over large packages, benefiting from the SUS420J2 rod's resistance to factory humidity.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX800 the Right Cylinder?
Choosing this 40 mm bore over the smaller 32 mm variant upgrades your 0.5 MPa thrust from 402 N to 628 N, providing a 56% boost in capacity. If your application requires even greater force, stepping up to the 50 mm bore yields 982 N at the same pressure. The 800 mm stroke represents the maximum standard extension for this bore size.
At 800 mm of travel, the unsupported piston rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear and seal failure, pair this cylinder with an external linear guide rail or utilize a fully guided cylinder assembly. Furthermore, because the standard SAI is double-acting and relies entirely on live air pressure, it cannot hold a load safely if air is exhausted or a valve is centered. For fail-safe position holding, integrate a SAIL pneumatic lock variant or an external pilot-operated check valve. This model is dimensionally interchangeable per ISO 15552, serving as a direct replacement for other ISO 15552 profile cylinders.
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 SAI40 Standard Air Cylinder SAI40AX800 FAQ
At an operating pressure of 0.5 MPa, this 40 mm bore cylinder generates 628 N of push force and 528 N of pull force. When increasing the pressure to 0.7 MPa, the push force reaches 879 N.
Yes, the SAI40X800 features a standard ISO 15552 profile barrel and mounting interface, making it dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke. You should match the PT G1/4 port and mounting accessories accordingly.
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