Airtac SAI63 Standard Cylinder SAI63X350S
The AirTAC Airtac SAI63 Standard Cylinder SAI63X350S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 350mm 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
- Stroke350 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63X350S
The AirTAC SAI63X350-S is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and a 350mm stroke. It delivers 1559 N of push force at 0.5 MPa, making it a robust choice for moderate to heavy industrial pushing and pulling tasks. Equipped with a standard magnet, this unit seamlessly integrates with CMSE and DMSE sensor switches mounted into the dual-side sensor grooves on the extruded aluminum barrel.
This model utilizes a standard carbon steel piston rod and PT tapered port threads. For environments requiring higher thermal resistance, the standard TPU seals can be swapped for Viton (H) options. As a genuine AirTAC component, it guarantees dimensional interchangeability per ISO 15552 standards, ensuring a seamless drop-in replacement for equivalent profile cylinders.
Airtac SAI63 Standard Cylinder SAI63X350S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X350S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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 SAI63X350S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×350 | 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 SAI63X350S Is Used
Material Handling
Ideal for pushing or diverting heavy pallets and packages along conveyor lines where a 350mm stroke is required to clear adjacent machinery.
Assembly Pressing
Provides reliable 1559 N force at 0.5 MPa for seating bearings, pins, and bushings into housings on automated assembly fixtures.
Pallet Positioning
Used in automated storage systems to index and stop pallets at precise working stations before lifting operations begin.
Is the Airtac SAI63 Standard Cylinder SAI63X350S the Right Cylinder?
Stepping up to an 80mm bore provides 2513 N at 0.5 MPa for heavier loads, while dropping to a 50mm bore yields 982 N for lighter, faster tasks. Because this 350mm stroke exceeds the 300mm threshold, the extended rod is susceptible to bending under side loads; utilizing an external guide rail or a fully guided cylinder is strongly recommended to prevent premature rod-bearing wear.
This configuration includes a G3/8 port, an M16x1.5 rod thread, and 36mm adjustable air cushions at both ends. Remember that a standard double-acting cylinder relies on continuous air pressure to maintain its position; if your application requires the load to be mechanically held during a pressure loss or valve centering, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. Mounting options include LB foot brackets, FA flanges, or TC trunnion joints.
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 SAI63X350S FAQ
At 0.5 MPa, this 63mm bore cylinder provides 1559 N of push force and 1402 N of pull force. If you increase the operating pressure to 0.7 MPa, the push force rises to 2182 N.
Yes, the SAI63X350-S is dimensionally interchangeable per ISO 15552. You can drop it in as a replacement for other ISO 15552 profile cylinders using identical mounting accessories like FA flanges or TC trunnions.
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