Airtac SAI63 Standard Cylinder SAI63BX650
The AirTAC Airtac SAI63 Standard Cylinder SAI63BX650 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ63 mm
- Stroke650 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI63 Standard Cylinder SAI63BX650
The AirTAC SAI63X650 is a double-acting ISO 15552 profile cylinder engineered to deliver a reliable 1559 N push force at 0.5 MPa. Featuring a 63 mm bore and a 650 mm stroke, it is built to handle rigorous linear motion tasks while maintaining strict dimensional interchangeability with other ISO 15552 cylinders.
This specific configuration features a SUS304 stainless steel piston rod (option B) for superior corrosion resistance in demanding environments. The extruded aluminum barrel includes sensor grooves on both sides, allowing direct mounting of CMSE or DMSE switches if a magnet is added later.
Airtac SAI63 Standard Cylinder SAI63BX650 Technical Specifications
| Model | Airtac SAI63 Standard Cylinder SAI63BX650 |
|---|---|
| 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 SAI63BX650
| 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 SAI63BX650 Is Used
Material Transfer
Drives long-travel pallet stops and diverter arms on 650 mm conveyor sections requiring consistent 1559 N push force.
Machining Clamps
Extends to position stainless steel workholding clamps on large machining centers, benefiting from the SUS304 rod.
Packaging Pushers
Cycles large format corrugated boxes into sealing machinery using the full 650 mm stroke length.
Is the Airtac SAI63 Standard Cylinder SAI63BX650 the Right Cylinder?
Providing 1559 N at 0.5 MPa, this 63 mm bore is a solid middle-ground option; stepping down to a 50 mm bore yields 982 N, while moving up to an 80 mm bore provides 2513 N. For a 650 mm stroke, the extended rod is highly susceptible to bending under side loads, so utilizing an external guide rail or a guided cylinder is strongly recommended to prevent premature rod-bearing wear.
This model uses a PT tapered G3/8 port and mounts via standard ISO 15552 accessories like TC trunnion or FA flange. Remember that the standard SAI does not hold loads pneumatically when air pressure is removed; for dead-stop holding, consider the SAIL lock variant or an external pilot-operated check valve.
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 SAI63BX650 FAQ
At 0.5 MPa operating pressure, the SAI63X650 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 SAI63X650 is a true ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 cylinders. It uses a G3/8 port and supports standard FA, FB, and TC mounting accessories.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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