Airtac SAI63 Standard Cylinder SAI63AX475
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX475 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 SAI63AX475
The AirTAC SAI63X475 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its 475 mm stroke is well-suited for intermediate linear positioning tasks requiring substantial travel. The extruded aluminum barrel eliminates tie-rods, providing a clean exterior while maintaining strict dimensional interchangeability per ISO 15552 standards.
For environments requiring corrosion resistance, this specific configuration features a SUS420J2 stainless steel piston rod (material code A). The barrel incorporates sensor grooves on both sides for direct mounting of CMSE or DMSE switches, though a magnet is not included in this base configuration. Sealing relies on durable TPU, with alternative Viton (H) or NBR (N) options available for specialized thermal or chemical exposures.
Airtac SAI63 Standard Cylinder SAI63AX475 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX475 |
|---|---|
| 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 SAI63AX475
| 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 SAI63AX475 Is Used
Automated Assembly Lines
Drives multi-stage indexing stations where 475 mm of travel moves subassemblies between robotic welding and fastening cells.
Material Diversion
Actuates long-throw diverter arms to route heavy pallets across wide conveyor belts without requiring multiple shorter cylinders.
Vertical Lifting Gates
Raises and lowers intermediate access gates on storage retrieval units, utilizing the 1559 N force to overcome gate weight.
Is the Airtac SAI63 Standard Cylinder SAI63AX475 the Right Cylinder?
Stepping up to the 80 mm bore increases the 0.5 MPa thrust to 2513 N, while dropping to the 50 mm bore reduces it to 982 N. With a 475 mm stroke, the unsupported piston rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear, guide the load externally or utilize a guided cylinder carriage.
The adjustable air cushion at both stroke ends decelerates the piston to protect endcaps, but it does not lock the load. If the application must hold position without continuous air pressure, integrate an external pilot-operated check valve or select the SAIL (air-released lock) variant. This model utilizes PT tapered ports and accepts standard ISO 15552 mounting accessories like FA flanges or TC trunnions.
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 SAI63AX475 FAQ
At 0.5 MPa, the SAI63X475 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 SAI63X475 is dimensionally interchangeable per ISO 15552, serving as a drop-in replacement for other standard profile cylinders of the same bore and stroke.
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