Airtac SAI63 Standard Cylinder SAI63X85S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X85S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 85mm 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
- Stroke85 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X85S
The AirTAC SAI63X85-S is a double-acting ISO 15552 profile cylinder featuring an 85mm stroke and a 63mm bore. It generates 1559N of push force and 1402N of pull force at 0.5 MPa, making it well-suited for medium-duty handling tasks. The extruded aluminum barrel design omits tie rods while maintaining strict dimensional interchangeability with other ISO 15552 actuators.
This specific configuration includes a standard carbon steel piston rod and PT tapered port threads. The -S suffix indicates an integrated magnet, allowing seamless operation with CMSE and DMSE series reed switches via the dual sensor grooves machined into the barrel. Adjustable air cushions at both ends ensure smooth end-of-stroke deceleration.
Airtac SAI63 Standard Cylinder SAI63X85S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X85S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 85 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 SAI63X85S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×85 | 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 SAI63X85S Is Used
Packaging Lines
Drives short-stroke pushing arms to divert cartons between conveyor belts with reliable 1559N force.
Clamping Fixtures
Holds aluminum or composite workpieces securely in CNC machining centers during light milling.
Material Handling
Actuates lift-and-transfer gates to position components accurately on automated assembly pallets.
Is the Airtac SAI63 Standard Cylinder SAI63X85S the Right Cylinder?
Choose this 63mm bore if your application requires the 1559N thrust at 0.5 MPa; step down to a 50mm bore (982N push) for lighter loads or up to an 80mm bore (2513N push) for heavier dynamics. The 85mm stroke is optimal for short transfers. Being a standard double-acting cylinder, it will drift if air pressure is lost—use the SAIL variant or an external rod lock for fail-safe load holding. For ISO 15552 drop-in replacements, match the 63mm bore, 85mm stroke, G3/8 PT ports, and preferred 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 SAI63X85S FAQ
At 0.5 MPa operating pressure, the SAI63X85-S delivers 1559N of push force and 1402N of pull force. At 0.7 MPa, the push force increases to 2182N.
Yes, the SAI63X85-S is dimensionally interchangeable per ISO 15552. You can drop it in to replace other standard profile cylinders with a 63mm bore and 85mm stroke, matching the G3/8 port and mounting interface.
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