Airtac SAI63 Standard Cylinder SAI63BX225
The AirTAC SAI63 Standard Cylinder SAI63BX225 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 225mm 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
- Stroke225 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 SAI63BX225
The AirTAC SAI63X225 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. This 225 mm stroke length is ideal for mid-range automation tasks requiring substantial travel without overextending the rod bearing. As a genuine AirTAC component, it provides a reliable direct replacement for any standard ISO 15552 mounting interface.
This specific configuration features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in washdown or chemically exposed environments. It utilizes PT tapered port threads and, because no magnet is specified, relies on external mechanical positioning rather than internal Hall-effect sensors.
Airtac SAI63 Standard Cylinder SAI63BX225 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX225 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 225 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 SAI63BX225
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×225 | 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 SAI63BX225 Is Used
Machining Clamps
Holds heavy metal workpieces securely during CNC milling operations, utilizing the 1559 N push force to prevent vibration shifts.
Package Diverters
Actuates routing arms on high-speed packaging lines, where the 225 mm stroke provides sufficient reach to redirect heavy cartons.
Press Ejection
Ejects formed parts from hydraulic presses, benefiting from the robust SUS304 rod material in environments with synthetic lubricants.
Is the Airtac SAI63 Standard Cylinder SAI63BX225 the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm bore increases your 0.5 MPa push thrust from 982 N to 1559 N, making it suitable for heavier payloads. If your application requires less force, dropping to the 40 mm bore provides 628 N. Because the stroke is 225 mm, you must account for potential side-load and rod-bearing bending; using an external guide rail prevents stick-slip chatter and premature seal wear.
This model uses a G3/8 port and an M16x1.5 rod thread. Since it lacks a magnet, you cannot use CMSE or DMSE sensors for end-of-stroke detection. Furthermore, this standard cylinder relies on live air pressure to maintain position. If your machine loses air, the piston will drift; for fail-safe load holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants instead.
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 SAI63BX225 FAQ
At 0.5 MPa operating pressure, the SAI63X225 provides 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X225 is dimensionally interchangeable per ISO 15552 standards. It serves as a direct replacement for other ISO 15552 profile cylinders, matching the standard mounting interface and G3/8 port size.
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