Airtac SAI63 Standard Cylinder SAI63BX165S
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX165S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 165mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke165 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
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About the Airtac SAI63 Standard Cylinder SAI63BX165S
The AirTAC SAI63X165-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its 165 mm stroke hits a sweet spot for mid-length automation cycles, while the integrated magnet enables direct mounting of CMSE or DMSE sensor switches along the extruded aluminum barrel grooves.
Built specifically for harsher environments, this variant features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance. The standardized ISO 15552 mounting interface ensures it functions as a direct replacement for other ISO 15552 profile cylinders without altering your existing machine footprint.
Airtac SAI63 Standard Cylinder SAI63BX165S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX165S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 165 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 SAI63BX165S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×165 | 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 SAI63BX165S Is Used
Stainless Equipment Clamping
The SUS304 rod resists washdown chemicals, making it ideal for clamping parts in food and beverage processing lines.
Mid-Stroke Diverting
Provides 1559 N of force at 0.5 MPa to reliably actuate heavy diverter gates on packaging conveyors.
Automated Pressing
Uses its 165 mm stroke to press bearings or bushings into housings on automated assembly machinery.
Is the Airtac SAI63 Standard Cylinder SAI63BX165S the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm bore increases your 0.5 MPa thrust from 982 N to 1559 N, providing a 59 percent boost in capacity. If your application requires less force, stepping down to the 50 mm bore reduces air consumption and physical footprint. This 165 mm stroke is well within the 1500 mm maximum standard stroke limit for this bore.
Because this cylinder uses adjustable air cushions at both ends rather than a physical brake, it cannot hold a load if air pressure is lost. For vertical loads that require fail-safe positioning, consider the SAIL (air-released lock) variant or an external pilot-operated check valve. To match your existing setup, specify the PT port thread, G3/8 air connections, M16x1.5 rod thread, and the appropriate mounting accessory like an FA flange or TC trunnion.
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 SAI63BX165S FAQ
At a 0.5 MPa operating pressure, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. At the maximum 1.0 MPa pressure, the theoretical push force is 318 kgf.
Yes, the SAI63X165-S is dimensionally interchangeable per ISO 15552 mounting interface standards. You can use it as a direct replacement for other ISO 15552 profile cylinders using matching FA flanges or TC trunnions.
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