Airtac SAI63 Standard Cylinder SAI63BX300
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX300 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 300mm 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
- Stroke300 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 SAI63BX300
The AirTAC SAI63X300 is a double-acting ISO 15552 profile cylinder engineered to deliver a push force of 1559 N and a pull force of 1402 N at 0.5 MPa. With a 300 mm stroke, this extruded aluminum barrel unit is built for robust industrial handling and automation tasks.
This configuration incorporates a SUS304 stainless steel piston rod for superior corrosion resistance and includes PT tapered port threads. Because it lacks the -S magnet suffix, it operates without integrated position sensing. For applications requiring position holding upon air loss, the SAIL variant with an air-released lock is recommended over the standard model.
Airtac SAI63 Standard Cylinder SAI63BX300 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX300 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 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 SAI63BX300
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×300 | 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 SAI63BX300 Is Used
Automated Assembly Lifting
Lifts and positions heavy sub-assemblies on manufacturing lines, utilizing the 1559 N push force to elevate components reliably during automated workflows.
Material Diversion
Actuates large diverter arms on conveyor systems, where the 300 mm stroke provides the necessary reach to redirect heavy pallets or product queues.
Clamping Fixtures
Secures heavy metal or composite parts within machining fixtures, applying consistent 0.5 MPa clamping pressure without yielding to cutting vibrations.
Is the Airtac SAI63 Standard Cylinder SAI63BX300 the Right Cylinder?
Providing 1559 N of thrust at 0.5 MPa, this bore size is a strong middle ground. If your application requires less force, the 50 mm bore offers 982 N, while stepping up to the 80 mm bore yields 2513 N. As a genuine ISO 15552 profile cylinder, it serves as a direct replacement for other standard cylinders with identical mounting dimensions, utilizing a G3/8 port and compatible FA, FB, or TC accessories.
Because the 300 mm stroke creates an extended unsupported rod length, side loads can cause rod-bearing bending and premature wear. Employ an external guide rail or switch to a guided cylinder to manage off-center loads. Remember that standard air cushions only decelerate the piston near the end caps; they do not function as a brake to hold loads vertically without live air pressure.
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 SAI63BX300 FAQ
At an operating pressure of 0.5 MPa, the SAI63X300 generates a push force of 1559 N and a pull force of 1402 N. If pressure is increased to 0.7 MPa, the push force rises to 2182 N.
Yes, the SAI63X300 is a true ISO 15552 profile cylinder with standardized mounting dimensions, making it dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke. Ensure you match the G3/8 port and mounting accessories.
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