Airtac SAI63 Standard Cylinder SAI63AX350
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX350 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 SAI63AX350
The AirTAC SAI63X350 is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and 350mm stroke. It supplies a push force of 1559 N and a pull force of 1402 N at 0.5 MPa, making it well-suited for medium-duty industrial handling and processing tasks.
This variant is configured with a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance in humid environments. It utilizes PT tapered port threads (G3/8) and includes adjustable air cushions at both ends to absorb impact. Note that this is a standard profile barrel design without a magnet; adding the -S suffix is required if you need to use CMSE or DMSE sensor switches.
Airtac SAI63 Standard Cylinder SAI63AX350 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX350 |
|---|---|
| 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 SAI63AX350
| 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 SAI63AX350 Is Used
Automated Machining Clamps
Provides reliable 1559 N clamping pressure at 0.5 MPa for securing heavy metal workpieces during automated milling or drilling operations.
Material Diverters
The 350mm stroke offers extended reach for actuating diverter arms on medium-duty package handling conveyor lines.
Assembly Presses
Ideal for light-duty assembly presses, applying consistent downward force to seat bearings or snap-fit components.
Is the Airtac SAI63 Standard Cylinder SAI63AX350 the Right Cylinder?
At 0.5 MPa, this 63mm bore generates 1559 N of push force. If your application requires less force, stepping down to a 50mm bore yields 982 N, while moving up to an 80mm bore provides 2513 N. Because the 350mm stroke creates a long unsupported rod extension, you must manage side loads carefully to prevent rod-bearing bending; using an external guide rail or a guided cylinder is highly recommended.
This model is dimensionally interchangeable per ISO 15552, serving as a direct drop-in replacement for other standard profile cylinders with a 63mm bore, 350mm stroke, G3/8 port, and compatible mounting accessories like FA flanges or TC trunnions. Keep in mind that the standard double-acting design does not hold loads safely upon air loss; if static holding is required, consider the SAIL locking variant or an external pilot-operated check valve.
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 SAI63AX350 FAQ
At an operating pressure of 0.5 MPa, the SAI63X350 generates a push force of 1559 N and a pull force of 1402 N. If you increase the pressure to 0.7 MPa, the push force reaches 2182 N.
Yes, the SAI63X350 is a true ISO 15552 profile cylinder. Its standardized mounting interface and center-to-center dimensions make it interchangeable with other ISO 15552 cylinders of the same bore and stroke, without claiming exact brand equivalency.
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