Airtac SAI63 Standard Cylinder SAI63BX155
The AirTAC SAI63 Standard Cylinder SAI63BX155 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI63 Standard Cylinder SAI63BX155
The AirTAC SAI63X155 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. This 63 mm bore unit features a 155 mm stroke and operates smoothly within a 30-800 mm/s speed range. Its extruded aluminum barrel omits tie-rods, presenting a clean exterior that drops directly into standardized ISO 15552 mounting interfaces.
Built for demanding environments, this specific configuration incorporates a SUS304 stainless steel piston rod (option B) to resist corrosion and moisture. The barrel includes integrated sensor grooves on both sides, allowing for straightforward position tracking when paired with compatible switches. Adjustable air cushions at both ends ensure controlled deceleration of the moving load.
Airtac SAI63 Standard Cylinder SAI63BX155 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX155 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 155 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 SAI63BX155
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×155 | 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 SAI63BX155 Is Used
Stainless Rod Packaging
The SUS304 rod option excels in washdown packaging lines, providing reliable 1559 N actuation while resisting moisture and corrosion.
Mid-Range Assembly Press
Delivers consistent clamping force for assembling components, using its 155 mm stroke to accommodate varying part heights.
Material Diverting
Actuates routing gates on conveyor systems, utilizing adjustable end-cushions to stop heavy payloads smoothly without impact damage.
Is the Airtac SAI63 Standard Cylinder SAI63BX155 the Right Cylinder?
Selecting this 63 mm bore makes sense when your application requires roughly 1559 N of thrust at 0.5 MPa. If your load demands less force, stepping down to the 50 mm bore yields 982 N, whereas moving up to the 80 mm bore provides 2513 N. The 155 mm stroke offers ample extension for mid-range actuation without approaching the 1500 mm maximum standard limit, keeping the rod highly stable.
This model uses a PT tapered port thread for a tight, reliable pneumatic connection. Because the standard SAI is double-acting, it relies entirely on live air pressure to move and maintain position. If a sudden air loss occurs, the piston will drift. For vertical loads that require fail-safe holding, consider the SAIL variant with an air-released lock or the BSAI clamp-lock cylinder.
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 SAI63BX155 FAQ
At 0.5 MPa operating pressure, 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 SAI63X155 is dimensionally interchangeable per ISO 15552. It serves as a direct replacement for other ISO 15552 profile cylinders with matching mounting dimensions.
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