Airtac SAI63 Standard Cylinder SAI63X650S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X650S 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 SAI63X650S
The AirTAC SAI63X650-S is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and 650mm stroke. It generates a robust 1559N of push force and 1402N of pull force at 0.5 MPa, making it well-suited for heavy-duty positioning tasks over extended distances. The extended 650mm stroke allows for generous travel in automated machinery without requiring multi-stage telescoping solutions.
Equipped with a magnetic piston (-S), this model seamlessly integrates with CMSE and DMSE reed switches fitted into the dual sensor grooves machined into the extruded aluminum barrel. The standard carbon steel piston rod provides durable, high-tensile performance for industrial automation, while adjustable air cushions at both ends absorb impact energy at the stroke extremes.
Airtac SAI63 Standard Cylinder SAI63X650S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X650S |
|---|---|
| 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 SAI63X650S
| 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 SAI63X650S Is Used
Extended Stroke Forming
Provides the 650mm reach needed to draw or press heavy materials in automated forming lines, utilizing 1559N of push force at 0.5 MPa.
Pallet Transfer Gates
Actuates long-throw diverter arms to reroute large pallets between conveyor lanes, benefiting from the magnetic piston for precise end-position sensing.
Heavy Component Lift
Raises substantial jigs or fixtures through a 650mm vertical path, relying on the adjustable air cushions to safely decelerate the load.
Is the Airtac SAI63 Standard Cylinder SAI63X650S the Right Cylinder?
Selecting this 63mm bore over the smaller 50mm option upgrades your thrust from 982N to 1559N at 0.5 MPa, providing a significant boost in work capacity without a massive footprint increase. If your application requires even greater force, stepping up to the 80mm bore yields 2513N. The G3/8 PT port ensures adequate volumetric flow to maintain operational velocity across the 650mm travel.
Because the 650mm stroke creates a long unsupported rod extension, side loads can cause bending stresses on the rod bearing. For optimal longevity, guide the load externally or utilize a guided cylinder carriage to prevent rod deflection. Note that the standard SAI does not hold position upon air loss; if static locking is required for safety, specify the SAIL variant or an external pilot-operated check valve. Mounting options include FA flanges or TC trunnions to match your ISO 15552 interface.
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 SAI63X650S FAQ
At 0.5 MPa, this 63mm bore cylinder provides 1559N of push force and 1402N of pull force. At the maximum 1.0 MPa operating pressure, it can deliver up to 318 kgf of theoretical force.
Yes, the SAI63X650-S is dimensionally interchangeable per ISO 15552 mounting interface standards. You can drop it in to replace other ISO 15552 profile cylinders of the same bore and stroke, utilizing the standard G3/8 PT port and matching mounting dimensions.
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