Airtac SAI63 Standard Cylinder SAI63BX550
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX550 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 550mm 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
- Stroke550 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 SAI63BX550
The AirTAC SAI63X550 is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and a 550mm stroke. It generates a push force of 1559 N and a pull force of 1402 N at 0.5 MPa, making it a robust choice for medium-duty automation tasks. This unit is equipped with a SUS304 stainless steel piston rod for superior corrosion resistance and uses PT tapered port threading.
Designed with an extruded aluminum barrel, the housing integrates sensor grooves on both sides for direct switch mounting. While the standard adjustable air cushions decelerate the piston at stroke ends, this model does not hold a load if air pressure is lost. For applications needing positive locking in the event of pressure drop, the SAIL variant is recommended.
Airtac SAI63 Standard Cylinder SAI63BX550 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX550 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 550 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 SAI63BX550
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×550 | 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 SAI63BX550 Is Used
Material Handling
Drives medium-sized packages and pallets along extended conveyor lines, utilizing the 550mm stroke to push or divert products efficiently at sorting junctions.
Assembly Automation
Actuates multi-stage tooling stations where the SUS304 rod provides necessary corrosion resistance against minor fluid exposure or humid factory environments.
Packaging Equipment
Operates long-travel lifting arms for carton erecting or product indexing, relying on the 1559 N force to move loads reliably.
Is the Airtac SAI63 Standard Cylinder SAI63BX550 the Right Cylinder?
Selecting this 63mm bore cylinder is ideal when a 50mm bore (providing 982 N push at 0.5 MPa) is insufficient, but an 80mm bore (delivering 2513 N) would be physically oversized. The 550mm stroke requires careful mounting to prevent rod-bearing bending under side loads. For this longer stroke length, utilizing an external guide rail or a fully guided cylinder is strongly recommended to absorb lateral forces and prevent premature wear.
As a dimensionally interchangeable ISO 15552 cylinder, this model serves as a direct replacement for other ISO 15552 profile cylinders. To match your existing setup, specify the G3/8 PT port, the appropriate mounting accessory (such as LB foot or TC trunnion), and note that this specific configuration does not include a magnet (-S) for sensor detection.
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 SAI63BX550 FAQ
At an operating pressure of 0.5 MPa, the SAI63X550 cylinder provides a push force of 1559 N and a pull force of 1402 N. If pressure is increased to 0.7 MPa, the push force reaches 2182 N.
Yes, the SAI63X550 is a genuine ISO 15552 profile cylinder, meaning its mounting dimensions are standardized for direct interchangeability with other ISO 15552 profile cylinders of the same bore and stroke.
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