Airtac SAI63 Standard Cylinder SAI63AX400
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX400 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm 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.
- BoreØ63 mm
- Stroke400 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX400
The AirTAC SAI63X400 is a double-acting ISO 15552 profile cylinder built for rigorous automation. It provides 1559N push force at 0.5 MPa, making it highly effective for heavy manipulation over a 400mm stroke. The extruded aluminum barrel omits tie rods, yielding a clean exterior that simplifies machine integration.
Configured with a SUS420J2 stainless steel piston rod (option A), this unit offers superior corrosion resistance for demanding environments. It features PT tapered port threads and lacks a standard magnet, though the barrel retains dual sensor grooves if magnetic switches are later required for position detection.
Airtac SAI63 Standard Cylinder SAI63AX400 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX400 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 400 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M16×1.5 |
| 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI63 Standard Cylinder SAI63AX400
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | 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 SAI63 Standard Cylinder SAI63AX400 Is Used
Automated Assembly Presses
Provides reliable 1559N clamping force at 0.5 MPa for securing heavy components during robotic assembly operations.
Material Diversion
Handles 400mm stroke requirements to push heavy pallets or product flows accurately across wide conveyor belts.
Packaging Equipment
Drives robust folding and sealing mechanisms where a longer stroke and consistent mid-range force are essential.
Is the Airtac SAI63 Standard Cylinder SAI63AX400 the Right Cylinder?
With a 400mm stroke, this 63mm bore cylinder handles mid-range actuation well. If your application requires less force, stepping down to the 50mm bore yields 982N at 0.5 MPa. Conversely, upgrading to the 80mm bore provides 2513N for heavier loads. Because the stroke is 400mm, you must manage side loads carefully; an unsupported rod of this length can bend under lateral stress. Utilize an external guide rail or a guided cylinder to prevent rod-bearing damage.
This model is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for standard profile cylinders. It uses a G3/8 PT port, an M16x1.5 rod thread, and 36mm adjustable air cushions at both ends. Remember that the standard SAI does not hold loads safely upon air loss; for fail-safe holding, specify the SAIL variant or an external rod 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 SAI63 Standard Cylinder SAI63AX400 FAQ
At 0.5 MPa, the SAI63X400 delivers 1559N of push force and 1402N of pull force. At 0.7 MPa, the push force increases to 2182N.
Yes, the SAI63X400 is a genuine ISO 15552 profile cylinder, making it dimensionally interchangeable with other standard ISO 15552 cylinders using compatible mounting accessories.
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