Airtac SAI80 Standard Air Cylinder SAI80BX650
The AirTAC SAI80 Standard Air Cylinder SAI80BX650 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm 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.
- BoreØ80 mm
- Stroke650 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- 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 SAI80 Standard Air Cylinder SAI80BX650
The AirTAC SAI80X650 is a double-acting ISO 15552 profile cylinder engineered to deliver a push force of 2513 N at 0.5 MPa. Its 650 mm stroke provides the extended travel distance required for positioning heavy actuators or moving substantial pallets along automated lines. The extruded aluminum barrel design omits tie rods, presenting a clean exterior that drops directly into existing ISO 15552 mounting footprints.
This specific configuration features a SUS304 stainless steel piston rod (option B), offering superior corrosion resistance for humid or washdown-adjacent environments. The PT tapered port threads ensure a robust, mechanically sealed pneumatic connection. Because this variant lacks an internal magnet, it is optimized for purely mechanical duty where position sensing is handled externally or is unnecessary.
Airtac SAI80 Standard Air Cylinder SAI80BX650 Technical Specifications
| Model | Airtac SAI80 Standard Air Cylinder SAI80BX650 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 650 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI80 Standard Air Cylinder SAI80BX650
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | 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 SAI80 Standard Air Cylinder SAI80BX650 Is Used
Pallet Transfer
Drives heavy pallets over the 650mm stroke on packaging and distribution conveyor lines with reliable 2513N force.
Press Ejection
Pushes finished stamped parts out of large presses, utilizing the extended stroke and robust SUS304 rod for durability.
Automated Storage
Actuates large lifting forks in automated storage and retrieval systems, where the corrosion-resistant rod withstands varied climates.
Is the Airtac SAI80 Standard Air Cylinder SAI80BX650 the Right Cylinder?
With a 0.5 MPa thrust of 2513 N, this 80 mm bore provides substantial power; if your application requires less force, stepping down to the 63 mm bore yields 1559 N, while moving up to the 100 mm bore provides 3927 N. For a 650 mm stroke, the extended rod is highly susceptible to bending under side loads. Implement an external guide rail or utilize a guided cylinder to prevent rod-bearing damage and premature seal wear.
This cylinder is a dimensionally interchangeable direct replacement for any ISO 15552 profile cylinder. To match this exact configuration, specify an 80 mm bore, 650 mm stroke, PT G3/8 ports, and the SUS304 (B) rod material. Note that the standard adjustable air cushions only decelerate the piston at end-of-stroke; they will not hold a suspended load. If static holding without air pressure is required, select the SAIL or BSAI locking variant.
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 SAI80 Standard Air Cylinder SAI80BX650 FAQ
At an operating pressure of 0.5 MPa, the SAI80X650 generates a push force of 2513 N and a pull force of 2268 N. At 0.7 MPa, the push force increases to 3518 N.
Yes, the SAI80X650 is a true ISO 15552 profile cylinder. Its standardized mounting interface and dimensions make it a direct replacement for other ISO 15552 cylinders, requiring no mechanical modifications to your existing equipment.
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