Airtac SAI63 Standard Cylinder SAI63AX300S
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX300S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 300mm 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
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX300S
The AirTAC SAI63X300-S is a double-acting ISO 15552 profile cylinder engineered to deliver a push force of 1559 N at 0.5 MPa. Its 300 mm stroke provides the extended travel needed for mid-range automation tasks, positioning components, or actuating clamps. The extruded aluminum barrel design omits tie-rods, ensuring a clean exterior that drops directly into standardized ISO 15552 mounting footprints.
This specific configuration includes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance over standard carbon steel. Equipped with a magnet for position sensing, the barrel features sensor grooves on both sides to accept CMSE or DMSE switches. Fluid connections use PT tapered threads, and the cylinder incorporates adjustable air cushions at both ends to decelerate the piston smoothly.
Airtac SAI63 Standard Cylinder SAI63AX300S Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX300S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 300 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 SAI63AX300S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×300 | 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 SAI63AX300S Is Used
Automated Clamping
Provides 1559 N of clamping force at 0.5 MPa to secure heavy metal workpieces during CNC machining operations.
Product Diverting
Utilizes the 300 mm stroke to push products across conveyor belts at packaging lines operating up to 800 mm/s.
Material Handling
Lifts and positions medium-sized pallets or fixtures, using its SUS420J2 rod to resist moisture in humid plant environments.
Is the Airtac SAI63 Standard Cylinder SAI63AX300S the Right Cylinder?
Selecting this 63 mm bore over the smaller 50 mm variant is appropriate when you need to step up from 982 N to 1559 N of push force at 0.5 MPa. Conversely, if your application requires significantly higher thrust, the 80 mm bore offers 2513 N. Because this model features a 300 mm stroke, it is critical to manage side loads; long unsupported rods are susceptible to bending, so utilize an external guide rail or select a guided cylinder to prevent premature rod-bearing wear.
As a standard double-acting cylinder, the SAI63X300-S relies on continuous air pressure to move and hold its load. If pressure is lost or the valve centers, the piston will drift. For applications requiring true position holding without live pressure, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. This model is fully interchangeable with other ISO 15552 cylinders by matching the 63 mm bore, 300 mm stroke, G3/8 port, and appropriate 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 SAI63AX300S FAQ
At an operating pressure of 0.5 MPa, this 63 mm bore cylinder provides a push force of 1559 N and a pull force of 1402 N. If pressure is increased to 0.7 MPa, the push force reaches 2182 N.
No, the standard SAI cylinder does not hold position without live air pressure and will drift if pressure is lost. The adjustable air cushion only decelerates the piston at stroke end. For fail-safe load holding, use the SAIL variant with an air-released lock or an external pilot-operated check valve.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI63 Standard Cylinder SAI63AX300S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.