Airtac SAI63 Standard Cylinder SAI63X475
The AirTAC Airtac SAI63 Standard Cylinder SAI63X475 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 475mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ63 mm
- Stroke475 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X475
The AirTAC SAI63X475 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. Its extruded aluminum barrel omits tie-rods, providing a clean profile that drops directly into standardized ISO 15552 mounting interfaces. The 475 mm stroke makes it highly suitable for mid-range linear actuation tasks requiring substantial reach.
Beyond the core specifications, this unit features a standard carbon steel piston rod for high tensile strength under load. The barrel incorporates dual sensor grooves, allowing for direct mounting of CMSE or DMSE switches if position feedback is later required. Additionally, the standard TPU seals can be swapped for Viton (H) options in high-temperature environments, ensuring versatility across demanding industrial setups.
Airtac SAI63 Standard Cylinder SAI63X475 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X475 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 475 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 SAI63X475
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×475 | 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 SAI63X475 Is Used
Material Diversion
Actuates long-throw diverter gates on packaging lines, utilizing the 475 mm stroke to shift products between parallel conveyor lanes smoothly.
Pallet Handling
Pushes heavy pallets into wrapping stations, leveraging the 1559 N push force at 0.5 MPa to move loads efficiently without hesitation.
Assembly Line Transfer
Drives mid-stroke transfer arms that reposition automotive components between machining centers, relying on ISO 15552 dimensions for easy replacement.
Is the Airtac SAI63 Standard Cylinder SAI63X475 the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm variant steps the 0.5 MPa push force up from 982 N to 1559 N, providing a significant increase in thrust for heavier payloads. If your application requires less force and faster cycling, stepping down to the 40 mm bore yields 628 N. Because this model features a 475 mm stroke, the extended rod is susceptible to bending under side loads; utilizing an external guide rail or a guided cylinder mechanism is strongly recommended to prevent premature rod-bearing wear.
For installations needing positive load holding during a loss of air pressure, note that the standard adjustable air cushions only decelerate the piston at stroke ends and do not act as a brake. In such scenarios, specify the SAIL variant with an air-released lock or utilize an external pilot-operated check valve. This configuration uses a G3/8 PT tapered port, accepts standard mounting accessories like TC trunnion or FA flange, and does not include a magnet.
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 SAI63X475 FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore 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 SAI63X475 is dimensionally interchangeable per ISO 15552. You can drop it into existing mounts matching this standard, utilizing its G3/8 PT ports and standard flange or trunnion accessories without modifying the machinery.
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