Airtac SAI40 Standard Air Cylinder SAI40AX400S
The AirTAC SAI40 Standard Air Cylinder SAI40AX400S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 400mm 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
- Stroke400 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 SAI40AX400S
The AirTAC SAI40X400-S is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force and 528 N of pull force at 0.5 MPa. Its 400 mm stroke makes it highly suitable for medium-travel material handling and packaging tasks. As a genuine AirTAC component, it ensures reliable linear motion under demanding industrial conditions.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It also includes a built-in magnet (-S) for position sensing, allowing seamless integration with CMSE or DMSE reed switches mounted directly into the dual sensor grooves on the extruded aluminum barrel.
Airtac SAI40 Standard Air Cylinder SAI40AX400S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX400S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 400 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 SAI40AX400S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | 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 SAI40 Standard Air Cylinder SAI40AX400S Is Used
Package Diverting
Provides the extended 400 mm reach needed to push cartons between parallel conveyor lines in high-speed logistics sortation systems.
Component Ejection
Ideal for ejecting molded or machined parts from a fixture, utilizing the 628 N push force to clear the work area safely.
Pallet Positioning
Used to align or stop empty pallets at a staging zone, where the magnet allows intermediate position confirmation before full extension.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX400S the Right Cylinder?
Select this 40 mm bore when an application requires more thrust than the 32 mm variant (which provides 402 N at 0.5 MPa) but lacks the physical space for a 50 mm cylinder. Because this model features a 400 mm stroke, you must account for rod-bearing bending under side loads. For applications involving heavy off-center loads, utilize an external guide rail or transition to a guided cylinder to prevent premature seal wear.
This unit uses PT tapered ports and operates at speeds between 30-800 mm/s. If the machinery requires the load to remain stationary during a complete loss of air pressure, a standard SAI will drift; you should specify the SAIL variant with an air-released lock or an external pilot-operated check valve. As a profile cylinder, it offers true ISO 15552 mounting interchangeability, accepting standard FA, FB, LB, and TC accessories.
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 SAI40AX400S FAQ
At a standard operating pressure of 0.5 MPa, this 40 mm bore cylinder generates 628 N of push force and 528 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 879 N.
Yes, the SAI40X400-S is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 profile cylinders with a 40 mm bore and 400 mm stroke, provided your mounting hardware and PT port connections match.
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1-Year Warranty
Covers non-human-caused product damage.
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