Airtac SAI63 Standard Cylinder SAI63X430
The AirTAC Airtac SAI63 Standard Cylinder SAI63X430 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 430mm 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
- Stroke430 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X430
The AirTAC SAI63X430 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its 430 mm stroke provides substantial extension length for mid-range automation tasks. The extruded aluminum barrel design omits tie rods, presenting a clean exterior that drops directly into standardized ISO 15552 mounting footprints.
This specific configuration utilizes a standard carbon steel piston rod and PT tapered port threads. Because it lacks a built-in magnet, position sensing requires external limit switches rather than the integrated sensor grooves. For applications requiring end-position locking under zero pressure, the SAIL variant provides a dedicated mechanical hold.
Airtac SAI63 Standard Cylinder SAI63X430 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X430 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 430 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 SAI63X430
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×430 | 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 SAI63X430 Is Used
Component Ejection
Pushes machined parts out of a CNC workstation with 1559 N of force at 0.5 MPa, utilizing the 430 mm stroke to clear the machining envelope entirely.
Pallet Diversion
Extends across a conveyor lane to divert heavy pallets, relying on the adjustable air cushions to absorb the kinetic energy at the end of the 430 mm extension.
Vertical Lifting
Raises lightweight materials to a secondary tier using the 430 mm stroke, provided an external pilot-operated check valve is installed to prevent dropping upon loss of air pressure.
Is the Airtac SAI63 Standard Cylinder SAI63X430 the Right Cylinder?
Selecting this 63 mm bore makes sense when a 50 mm cylinder falls short—yielding 1559 N at 0.5 MPa compared to the 982 N of the smaller bore. The 430 mm stroke falls well within the 1500 mm maximum standard stroke for this size, but it is long enough to require careful side-load management. To prevent rod-bearing bending and premature seal wear, use an external guide rail or a guided cylinder carriage for heavy offset loads.
As a dimensionally interchangeable ISO 15552 unit, this model directly replaces equivalent profile cylinders using the same bore, stroke, G3/8 port, and mounting accessories like FA flanges or TC trunnions. Note that a standard SAI relies on adjustable air cushions to decelerate the piston at stroke ends; it will not hold a load vertically if air pressure is lost. Use the SAIL lock variant if dead-end holding is required.
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 SAI63X430 FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder generates 1559 N of push force and 1402 N of pull force. If pressure increases to 0.7 MPa, the push force rises to 2182 N.
Yes. The SAI63X430 is dimensionally interchangeable with other ISO 15552 profile cylinders of the same bore and stroke. You can swap it using the existing G3/8 port connections and ISO mounting hardware.
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