Airtac SAI63 Standard Cylinder SAI63AX400S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX400S 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 SAI63AX400S
The AirTAC SAI63X400-S is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and a 400mm stroke. It generates a push force of 1559 N at 0.5 MPa, making it well-suited for medium-duty automation tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that drops directly into standard ISO 15552 mounting interfaces.
This specific configuration includes a magnet for position sensing and utilizes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance. The barrel incorporates sensor grooves on both sides, allowing seamless integration with CMSE or DMSE reed switches. Fluid ports are PT tapered threads sized at G3/8.
Airtac SAI63 Standard Cylinder SAI63AX400S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX400S |
|---|---|
| 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 SAI63AX400S
| 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 SAI63AX400S Is Used
Material Handling
Ideal for diverting or lifting packages on a conveyor line where a 400mm travel distance is required to clear adjacent machinery.
Assembly Station Clamping
Provides reliable clamping force of 1559 N at 0.5 MPa for holding workpieces securely during light machining or fastening operations.
Vertical Lifting Gates
The SUS420J2 rod offers good moisture resistance for actuating vertical access gates or pallet stops in storage environments.
Is the Airtac SAI63 Standard Cylinder SAI63AX400S the Right Cylinder?
Choose this 63mm bore when a 50mm bore (offering 982 N push at 0.5 MPa) lacks the necessary thrust, but an 80mm bore (delivering 2513 N) would be physically oversized. The 400mm stroke provides ample travel for indexing and lifting tasks. Because the stroke is 400mm, side loads can cause rod-bearing bending; utilize an external guide rail or a fully guided cylinder to prevent premature wear.
This model is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other standard profile cylinders. It uses PT G3/8 ports and standard mounting accessories like FA flanges or TC trunnions. Note that the adjustable air cushions only decelerate the piston at end-of-stroke; they do not hold a load. If static holding is required during air loss, specify the SAIL or BSAI lock variant.
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 SAI63AX400S FAQ
This 63mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N at 0.5 MPa. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X400-S is a genuine ISO 15552 profile cylinder, making its mounting dimensions fully interchangeable with other ISO 15552 standard cylinders. It uses PT G3/8 ports.
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