Airtac SAI63 Standard Cylinder SAI63AX350S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX350S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 350mm 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
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX350S
The AirTAC SAI63X350-S is a double-acting ISO 15552 profile cylinder engineered to deliver a push force of 1559 N at 0.5 MPa. Its 350 mm stroke is well-suited for medium-duty positioning tasks on automated lines.
This specific configuration features a SUS420J2 stainless steel piston rod for enhanced corrosion resistance. It includes a magnet (-S) for proximity sensing via CMSE or DMSE switches fitted into the dual sensor grooves on the extruded aluminum barrel.
Airtac SAI63 Standard Cylinder SAI63AX350S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX350S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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 SAI63AX350S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×350 | 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 SAI63AX350S Is Used
Component Ejection
Pushes machined parts out of a CNC enclosure over a 350 mm distance, utilizing the 1559 N force at 0.5 MPa to reliably clear the workspace.
Pallet Transfer
Actuates a transfer arm to shift lightweight pallets between parallel conveyor belts, relying on the stable ISO 15552 mounting interface.
Package Sorting
Diverts medium-weight cardboard cartons on a high-speed logistics line, with the CMSE sensors confirming full extension for the control system.
Is the Airtac SAI63 Standard Cylinder SAI63AX350S the Right Cylinder?
If you need less force, the 50 mm bore offers 982 N at 0.5 MPa, whereas stepping up to the 80 mm bore yields 2513 N. For this 350 mm stroke, the unsupported rod length is significant; lateral side loads can deflect the rod and wear the guide bearing. Employ an external linear guide or a guided cylinder to prevent rod bending.
To match this unit, use a 63 mm bore, 350 mm stroke, PT tapered port (G3/8), and an -S magnet. It provides drop-in dimensional interchangeability per ISO 15552. Note that a standard SAI will drift if air pressure is lost; use a SAIL variant if your application requires a fail-safe load 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 SAI63AX350S FAQ
At an operating pressure of 0.5 MPa, the 63 mm bore generates a push force of 1559 N and a pull force of 1402 N.
Yes, the SAI63X350-S is dimensionally interchangeable per ISO 15552, meaning it shares standard mounting footprint and port locations with equivalent profile cylinders from other brands.
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