Airtac SAI63 Standard Cylinder SAI63X650
The AirTAC Airtac SAI63 Standard Cylinder SAI63X650 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 SAI63X650
The AirTAC SAI63X650 is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and a 650mm stroke. It generates a push force of 1559 N at 0.5 MPa, making it well-suited for moderate-to-heavy actuation over extended distances. The extruded aluminum barrel design omits tie rods, providing a clean exterior that simplifies mounting and sensor placement.
This specific configuration utilizes a standard carbon steel piston rod and PT tapered port threads. To support position feedback, the barrel includes integrated sensor grooves on both sides, ready to accept CMSE or DMSE switches when paired with a magnet-equipped piston variant. The adjustable air cushions at both stroke ends ensure smooth deceleration of dynamic loads.
Airtac SAI63 Standard Cylinder SAI63X650 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X650 |
|---|---|
| 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 SAI63X650
| 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 SAI63X650 Is Used
Extended Material Transfer
Ideal for pushing heavy pallets or workpieces across long distances on automated conveyor lines where a 650mm stroke is required.
Large Press Ejection
Provides the 1559 N force needed to reliably eject formed parts from large machinery over a long stroke length.
Automated Storage Routing
Actuates large routing gates or diverters in high-throughput logistics hubs, ensuring smooth operation with adjustable cushions.
Is the Airtac SAI63 Standard Cylinder SAI63X650 the Right Cylinder?
When selecting this model, verify that the 1559 N thrust at 0.5 MPa is sufficient for your load; if higher force is needed, stepping up to the 80mm bore yields 2513 N under the same pressure. Conversely, a 50mm bore provides 982 N for lighter, faster tasks. Because this unit features a 650mm stroke, the extended rod is susceptible to bending under side loads. To prevent premature wear on the rod bearing, implement an external guide rail or use a fully guided cylinder design.
This SAI63X650 is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other standard profile cylinders with matching 63mm bore, 650mm stroke, G3/8 PT ports, and compatible mounting accessories like FA flanges or TC trunnions. Note that standard double-acting cylinders drift when air pressure is removed; if your application requires true load holding without live pressure, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants.
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 SAI63X650 FAQ
At 0.5 MPa operating pressure, the SAI63X650 generates a push force of 1559 N and a pull force of 1402 N. At the maximum 1.0 MPa pressure, the theoretical push force is 318 kgf.
Yes, the SAI63X650 is a genuine ISO 15552 profile cylinder, making its mounting interface and center-to-center dimensions interchangeable with other ISO 15552 compliant cylinders of the same bore and stroke.
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