Airtac SAI63 Standard Cylinder SAI63AX120S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX120S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX120S
The AirTAC SAI63X120-S is a double-acting ISO 15552 profile cylinder with a 63mm bore and 120mm stroke. It generates a push force of 1559 N at 0.5 MPa, making it well-suited for mid-weight industrial actuation tasks.
This specific configuration includes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance. It also features a built-in magnet (-S) for use with CMSE and DMSE sensor switches, which mount cleanly into the dual grooves on the extruded aluminum barrel.
Airtac SAI63 Standard Cylinder SAI63AX120S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX120S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 120 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 SAI63AX120S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×120 | 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 SAI63AX120S Is Used
Automated Clamping
Provides reliable 1559 N clamping force at 0.5 MPa for holding medium-duty workpieces during machining or welding operations.
Material Diverting
The 120mm stroke is ideal for actuating diverter arms and sorting gates on production line conveyor systems.
Press Ejection
Delivers consistent push force to eject finished parts or stamping scrap from press dies.
Is the Airtac SAI63 Standard Cylinder SAI63AX120S the Right Cylinder?
If you need slightly less force, the 50mm bore provides 982 N at 0.5 MPa; stepping up to the 80mm bore yields 2513 N. This 120mm stroke is optimal for compact to mid-range movements. Because this is a standard double-acting cylinder, it will not hold a load if air pressure is lost. For position-holding requirements, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants. This model uses PT tapered ports (G3/8) and is dimensionally interchangeable per ISO 15552.
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 SAI63AX120S 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, the -S suffix indicates a built-in magnet. It is fully compatible with CMSE and DMSE sensor switches that mount directly into the barrel's dual grooves.
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