Airtac SAI40 Standard Air Cylinder SAI40X400
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X400 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- 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 SAI40X400
The AirTAC SAI40X400 is a double-acting ISO 15552 profile cylinder offering 628N of push force at 0.5 MPa and 879N at 0.7 MPa. Its 400mm stroke is ideal for medium-travel material handling and robotic gating tasks. The extruded aluminum barrel omits traditional tie-rods, presenting a smooth, standardized exterior that integrates seamlessly into modern automated machinery.
Engineered for durability, the piston rod utilizes a carbon steel construction for high tensile strength and impact resistance. The standard PT tapered port threading guarantees a leak-free pneumatic connection. Because this unit lacks a magnet for sensors, position detection requires external reed switches or mechanical limit sensors rather than the integrated barrel grooves.
Airtac SAI40 Standard Air Cylinder SAI40X400 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X400 |
|---|---|
| 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 SAI40X400
| 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 SAI40X400 Is Used
Package Diverting
Provides the 400mm travel needed to push product lanes across wider conveyor belts during sortation processes.
Machine Gating
Drives heavy safety doors and machine access gates over long distances with reliable 879N force at 0.7 MPa.
Vertical Elevation
Handles vertical lifting tasks for component trays on assembly lines, requiring robust 628N thrust at 0.5 MPa.
Is the Airtac SAI40 Standard Air Cylinder SAI40X400 the Right Cylinder?
Stepping up to a 50mm bore increases the 0.5 MPa push force to 982N if your application demands greater thrust, while dropping to a 32mm bore reduces it to 402N for lighter loads. At 400mm of travel, the unsupported piston rod is highly susceptible to bending under side loads; utilizing an external linear guide or a guided cylinder is strongly recommended to prevent premature seal wear and rod scoring.
This SAI40X400 model features a G1/4 PT port, an M12x1.25 rod thread, and 30mm adjustable air cushions at both ends. It functions as a drop-in replacement for any ISO 15552 profile cylinder. Note that the standard cushion only decelerates the piston near stroke end and will not hold a load if air pressure is lost; use an external pilot-operated check valve for position holding.
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 SAI40X400 FAQ
The SAI40X400 generates 628N of push force and 528N of pull force at 0.5 MPa. At 0.7 MPa, the push force increases to 879N.
Yes, the SAI40X400 is a genuine ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI40 Standard Air Cylinder SAI40X400
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