Airtac SAI63 Standard Cylinder SAI63AX650S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX650S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 650mm 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
- Stroke650 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX650S
The AirTAC SAI63X650-S is a double-acting ISO 15552 profile cylinder engineered for rigorous automation duties. Delivering a push force of 1559 N at 0.5 MPa, this 63mm bore unit handles substantial workloads. The 650mm stroke is ideal for traversing long linear distances in assembly and material handling lines.
Built with a SUS420J2 stainless steel piston rod, it provides excellent corrosion resistance for demanding environments. The integrated -S magnet allows seamless operation with CMSE and DMSE sensor switches housed in the dual side grooves of the extruded aluminum barrel.
Airtac SAI63 Standard Cylinder SAI63AX650S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX650S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 650 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 SAI63AX650S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×650 | 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 SAI63AX650S Is Used
Automated Assembly
Drives multi-stage linear movements along extended production lines where a 650mm reach is required to transfer parts between stations.
Material Diverting
Pushes heavy packages or workpieces across wide conveyor belts, utilizing the 1559 N push force to overcome friction and inertia.
Packaging Equipment
Actuates long-stroke folding arms or positioning stops in large-scale packaging machinery, benefiting from the corrosion-resistant SUS420J2 rod.
Is the Airtac SAI63 Standard Cylinder SAI63AX650S the Right Cylinder?
This 63mm bore generates 1559 N at 0.5 MPa, sitting comfortably between the 50mm bore (982 N) and the 80mm bore (2513 N). Choose this model when the 50mm lacks the necessary thrust, but the 80mm is physically oversized for your envelope. It features a PT G3/8 port and utilizes M16x1.5 rod threads.
Because the 650mm stroke creates a long unsupported rod extension, side loads can cause severe bending stress on the rod bearing. For applications exceeding 300mm, always implement external guide rails or specify a fully guided cylinder to prevent premature wear. Note that standard double-acting cylinders drift when air pressure is removed; utilize the SAIL lock variant if the mechanism must hold a suspended load safely.
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 SAI63AX650S FAQ
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. If pressure is increased to 0.7 MPa, the push force reaches 2182 N.
Yes, the SAI63X650-S is dimensionally interchangeable per ISO 15552. You can directly swap it with other ISO 15552 profile cylinders of the same bore and stroke without modifying the mounting interface.
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