Airtac SAI63 Standard Cylinder SAI63AX650
The AirTAC Airtac SAI63 Standard Cylinder SAI63AX650 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø63mm bore and 650mm 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
- Stroke650 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
About the Airtac SAI63 Standard Cylinder SAI63AX650
The AirTAC SAI63X650 is a double-acting ISO 15552 profile cylinder featuring a 63mm bore and 650mm stroke. It delivers a push force of 1559 N at 0.5 MPa, making it well-suited for medium-duty automation tasks requiring substantial travel distance. The extruded aluminum barrel eliminates tie-rods, providing a smooth exterior that simplifies machine integration.
This specific unit is configured with a SUS420J2 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. Because no magnet is specified, it does not include the standard sensor groove elements required for reed switches. For applications requiring position holding without air pressure, consider the SAIL locking variant.
Airtac SAI63 Standard Cylinder SAI63AX650 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63AX650 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø63 mm |
| Stroke | 650 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 SAI63AX650
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×650 | 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 SAI63AX650 Is Used
Material Handling
Drives long-travel package stops and diverters on high-speed conveyor lines requiring 1559 N of push force.
Automated Assembly
Extends and retracts tooling carriages over a 650mm distance during multi-stage automated assembly processes.
Pallet Handling
Positions and lifts light pallets in distribution hubs where a 63mm bore provides the necessary thrust.
Is the Airtac SAI63 Standard Cylinder SAI63AX650 the Right Cylinder?
Stepping down to the 50mm bore reduces the push force to 982 N at 0.5 MPa, while upgrading to the 80mm bore increases it to 2513 N. At 650mm of stroke, the extended rod is highly susceptible to bending under side loads. We recommend using an external guide rail or a guided cylinder to prevent rod-bearing damage.
This model serves as a dimensionally interchangeable drop-in replacement for other ISO 15552 profile cylinders. Ensure your setup uses the G3/8 PT ports and appropriate mounting accessories like TC trunnion or FA flange brackets. Note that the adjustable air cushions at both ends only decelerate the piston; they do not lock the load when pressure is lost.
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 SAI63AX650 FAQ
At an operating pressure of 0.5 MPa, the SAI63X650 cylinder provides a push force of 1559 N and a pull force of 1402 N. At 0.7 MPa, the push force increases to 2182 N.
Yes, the SAI63X650 is a genuine AirTAC profile cylinder built to ISO 15552 dimensional standards, making it a direct drop-in replacement for other ISO 15552 cylinders with a 63mm bore and 650mm stroke.
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