Airtac SAI63 Standard Cylinder SAI63AX145
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX145 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 145mm 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
- Stroke145 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX145
The AirTAC SAI63X145 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa and 1402 N of pull force. Its 145 mm stroke is well-suited for mid-range automation tasks requiring substantial thrust without occupying excessive axial space. The extruded aluminum barrel design eliminates tie rods, providing a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid or mildly chemically active environments. It utilizes PT tapered port threads and lacks a standard magnet, meaning it is optimized for pure pneumatic actuation without integrated sensor feedback. Adjustable air cushions at both ends absorb kinetic energy at stroke end, protecting the mechanism from impact damage.
Airtac SAI63 Standard Cylinder SAI63AX145 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX145 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 145 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 SAI63AX145
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×145 | 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 SAI63AX145 Is Used
Clamping Mechanisms
Provides 1559 N of thrust at 0.5 MPa to securely hold metal workpieces during machining or welding operations.
Product Diverters
Uses the 145 mm stroke to push items laterally across conveyor belts in material handling lines.
Press Operations
Delivers consistent downward force for light-duty pressing, stamping, or assembly tasks.
Is the Airtac SAI63 Standard Cylinder SAI63AX145 the Right Cylinder?
Selecting this 63 mm bore is ideal when a 50 mm bore falls short, as the SAI50X145 provides only 982 N of push force at 0.5 MPa. Stepping up to the 80 mm bore yields 2513 N, which may be excessive and consume more compressed air. The 145 mm stroke is below the 300 mm side-load threshold, so standard mounting accessories like FA or FB flanges are sufficient without needing external guide rails.
For drop-in compatibility, match the 63 mm bore, 145 mm stroke, PT G3/8 port, and your required mounting accessory. Because this unit lacks a magnet (-S), position sensing requires external reed or solid-state switches mounted externally if needed. Note that a standard SAI cylinder relies on continuous air pressure to hold loads; if the air supply is exhausted, the piston will drift. For fail-safe load holding, consider the SAIL variant with an air-released lock or the BSAI clamp-lock model.
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 SAI63AX145 FAQ
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N. At 0.7 MPa, the push force increases to 2182 N.
Yes, its mounting dimensions match the ISO 15552 standard, allowing it to serve as a drop-in replacement for other ISO 15552 profile cylinders of the same bore size.
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