Airtac SAI63 Standard Cylinder SAI63X502S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X502S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 502mm 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
- Stroke502 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X502S
The AirTAC SAI63X502-S is a double-acting ISO 15552 profile cylinder featuring a non-standard 502mm stroke. It delivers a thrust of 1559 N at 0.5 MPa, making it well-suited for demanding linear motion tasks. The extruded aluminum barrel design omits traditional tie-rods, providing a clean exterior that integrates seamlessly into modern machinery.
This specific configuration includes a standard carbon steel piston rod and a built-in magnet (-S) for position sensing. You can mount CMSE or DMSE switches directly into the sensor grooves located on both sides of the barrel. For applications requiring extreme heat, the standard TPU seals can be swapped for Viton (H) options, extending the operating temperature range effectively.
Airtac SAI63 Standard Cylinder SAI63X502S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X502S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 502 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 SAI63X502S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×502 | 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 SAI63X502S Is Used
Automated Pressing
Provides consistent 1559 N pressing force at 0.5 MPa for assembling small components over a long 502mm travel distance.
Long-Stroke Diverting
Actuates large diverter arms or sorting gates across wide conveyor belts where extended reach is necessary.
Pallet Positioning
Pushes or aligns pallets in automated storage systems, utilizing the full 502mm stroke to clear adjacent machinery.
Is the Airtac SAI63 Standard Cylinder SAI63X502S the Right Cylinder?
Choosing this bore means you need substantial push force, but if 1559 N at 0.5 MPa is insufficient, stepping up to the 80mm bore yields 2513 N. Conversely, the 50mm bore provides 982 N if your load is lighter. Because this unit features a 502mm stroke (exceeding the standard maximum of 1500mm for this bore), it is a made-to-order item.
At 502mm of travel, the extended rod is highly susceptible to bending under side loads. To prevent premature wear on the rod bearing and seal, implement an external guide rail or use a fully guided cylinder. Additionally, this standard SAI cylinder relies on live air pressure to hold position; if air is lost, the piston will drift. For dead-stop holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) variants. As a true ISO 15552 cylinder, it serves as a drop-in replacement for any standard 63mm bore, 502mm stroke, G3/8 ported unit with PT threads, requiring only the appropriate mounting accessory (like an FA flange) and 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 SAI63X502S FAQ
At 0.5 MPa operating pressure, this 63mm bore cylinder generates 1559 N of push force and 1402 N of pull force. At the maximum rated pressure of 1.0 MPa, the theoretical maximum force is 318 kgf.
Yes, the SAI63X502-S is dimensionally interchangeable per ISO 15552. You can drop it into existing 63mm bore setups with a 502mm stroke, matching the G3/8 port and M16x1.5 rod thread, provided your mounting accessory matches.
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