Airtac SAI63 Standard Cylinder SAI63BX45S
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX45S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 45mm 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
- Stroke45 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 SAI63BX45S
The AirTAC SAI63X45-S is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its 45 mm stroke is tailored for short-travel clamping and indexing tasks where space is restricted but substantial push power is required. The extruded aluminum barrel design omits traditional tie-rods, providing a clean exterior that resists debris buildup.
This specific configuration features a SUS304 stainless steel piston rod for superior corrosion resistance in wet or chemically exposed environments. It includes a built-in magnet (-S) for seamless operation with CMSE and DMSE sensor switches, which seat neatly into the dual grooves machined on both sides of the barrel.
Airtac SAI63 Standard Cylinder SAI63BX45S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX45S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 45 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 SAI63BX45S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×45 | 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 SAI63BX45S Is Used
Short-Stroke Pressing
Provides 1559 N of thrust at 0.5 MPa for seating bearings and pins in automated assembly lines without overshooting the work area.
Product Diverting
Actuates a heavy-duty diverter arm on a packaging conveyor where the 45 mm stroke fully extends the routing mechanism quickly.
Pneumatic Clamping
Secures heavy steel workpieces during machining operations, utilizing the SUS304 rod to withstand coolant splash and factory moisture.
Is the Airtac SAI63 Standard Cylinder SAI63BX45S the Right Cylinder?
When sizing this actuator, stepping down to a 50 mm bore drops the 0.5 MPa push force to 982 N, whereas moving up to an 80 mm bore increases it to 2513 N. The 63 mm bore hits a sweet spot for medium-duty press operations. Because the stroke is short, rod-bearing bending is negligible, but side loads should still be managed with external guides to prevent premature seal wear.
This model uses a PT tapered port thread and a G3/8 air supply. As a standard double-acting cylinder, it will not hold a load if air pressure is lost or the valve is centered; use the SAIL variant with an air-released lock or an external pilot check valve for fail-safe position holding. Being dimensionally interchangeable per ISO 15552, it serves as a direct replacement for other profile cylinders sharing the standard 63 mm mounting interface.
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 SAI63BX45S FAQ
At a standard 0.5 MPa operating pressure, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. It can reach up to 2182 N push at 0.7 MPa.
Yes, the SAI63X45-S is a genuine ISO 15552 profile cylinder. Its standardized mounting dimensions allow it to direct replace other ISO 15552 cylinders with a 63 mm bore and 45 mm stroke.
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1-Year Warranty
Covers non-human-caused product damage.
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