Airtac SAI63 Standard Cylinder SAI63X300
The AirTAC Airtac SAI63 Standard Cylinder SAI63X300 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 SAI63X300
The AirTAC SAI63X300 is a double-acting ISO 15552 profile cylinder engineered to deliver 1559 N of push force at 0.5 MPa. Its extruded aluminum barrel design omits tie rods, providing a rigid yet compact structure for pneumatic automation. This 300 mm stroke variant suits extended travel applications requiring reliable mid-range thrust.
Standard configuration includes a carbon steel piston rod for structural durability under tension and compression. The barrel features dual-sided sensor grooves ready for CMSE or DMSE switches, provided a magnet is specified. For environments requiring higher thermal resistance, Viton (H) seals can be substituted for the standard TPU elastomers.
Airtac SAI63 Standard Cylinder SAI63X300 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63X300 |
|---|---|
| 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 SAI63X300
| 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 SAI63X300 Is Used
Automated Assembly Lines
Drives 300 mm linear movements for component placement and transfer tasks requiring 1559 N of push force.
Material Diverters
Actuates extended diverting arms across wider conveyor belts where a 63 mm bore provides optimal thrust.
Vertical Lift Gates
Raises and lowers access gates or pallet stops, utilizing the full 300 mm stroke for adequate clearance.
Is the Airtac SAI63 Standard Cylinder SAI63X300 the Right Cylinder?
Stepping down to a 50 mm bore drops the 0.5 MPa push force to 982 N, while an 80 mm bore increases it to 2513 N. Choose this 63 mm model when your application specifically requires the 1559 N output class. It features a G3/8 PT tapered port and supports mounting accessories like FA flanges or TC trunnions.
At 300 mm of travel, the extended rod is susceptible to bending under side loads. Implement an external guide rail or select a guided cylinder to prevent rod-bearing wear. Remember that a standard SAI cylinder relies on live air pressure to maintain position; if air is lost, the load will drift. Use the SAIL variant for pneumatic locking or the BSAI for bidirectional clamp-locking when dead-load holding is mandatory.
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 SAI63X300 FAQ
At an operating pressure of 0.5 MPa, the SAI63X300 generates 1559 N of push force and 1402 N of pull force. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X300 is built to ISO 15552 dimensional standards, making it a drop-in replacement for any cylinder matching that ISO mounting interface. Ensure your mounting hardware and port sizes align.
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