Airtac SAI63 Standard Cylinder SAI63BX120
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX120 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 120mm 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
- Stroke120 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
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About the Airtac SAI63 Standard Cylinder SAI63BX120
The AirTAC SAI63X120 is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and 120mm stroke. It generates 1559 N of push force and 1402 N of pull force at 0.5 MPa, making it well-suited for medium-duty handling tasks. The extruded aluminum barrel design omits external tie rods, presenting a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
This specific configuration features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in wet or chemically exposed environments. It utilizes tapered PT port threads and lacks a magnet; if position sensing is required later, the dual sensor grooves on the barrel allow for easy addition of DMSE or CMSE switches by switching to an -S model.
Airtac SAI63 Standard Cylinder SAI63BX120 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX120 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 120 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 SAI63BX120
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×120 | 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 SAI63BX120 Is Used
Stainless Steel Food Handling
The SUS304 rod and 1559 N output force make this cylinder ideal for pushing or lifting medium-weight product carriers in washdown food processing lines.
Package Diverting
Provides robust actuation for diverting heavier packages on logistics conveyors where a 50mm bore lacks the necessary thrust.
Material Pressing
Delivers consistent 1402 N pull force for pressing and seating components within light automated assembly machinery.
Is the Airtac SAI63 Standard Cylinder SAI63BX120 the Right Cylinder?
Choose this 63mm bore when a 50mm bore (982 N push at 0.5 MPa) is insufficient for your load, but an 80mm bore (2513 N push) would be physically oversized. The 120mm stroke provides ample travel for clamping, lifting, or indexing medium-weight payloads. Because this is a standard double-acting cylinder, it relies on continuous air pressure to hold position; if your application requires static load holding without live air, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants. For replacement matching, verify the 63mm bore, 120mm stroke, G3/8 PT ports, and your required mounting accessory (such as 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 SAI63BX120 FAQ
At a standard 0.5 MPa operating pressure, this 63mm bore cylinder generates 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X120 is a true ISO 15552 profile cylinder. Its standardized mounting dimensions and G3/8 port locations make it dimensionally interchangeable with other ISO 15552 cylinders, though you must verify your specific rod thread and accessory requirements.
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