Airtac SAI80 Standard Air Cylinder SAI80X270SG
The AirTAC Airtac SAI80 Standard Air Cylinder SAI80X270SG is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 270mm 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.
- BoreØ80 mm
- Stroke270 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 SAI80X270SG
The AirTAC SAI80X270-S is a double-acting ISO 15552 profile cylinder engineered for robust automation. Delivering a push force of 2513 N and a pull force of 2268 N at 0.5 MPa, this 80mm bore unit handles heavy-duty positioning tasks. The 270mm stroke provides ample extension for mid-range machinery movements. It features a standard carbon steel piston rod for high tensile strength under load.
Because this configuration includes the integrated magnet (-S), it is fully compatible with CMSE and DMSE series reed switches. These sensors mount directly into the extruded aluminum barrel's dual-side sensor grooves, allowing for precise end-of-stroke position detection without requiring additional mounting brackets.
Airtac SAI80 Standard Air Cylinder SAI80X270SG Technical Specifications
| Model | Airtac SAI80 Standard Air Cylinder SAI80X270SG |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 270 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 SAI80X270SG
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×270 | 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 SAI80X270SG Is Used
Heavy-Duty Clamping
Secures large metal castings during CNC machining operations, utilizing the 2513 N push force to prevent workpiece shifting under aggressive cutting forces.
Pallet Diverting
Actuates heavy diverter arms on automated packaging lines, using the 270mm stroke to push fully loaded pallets onto secondary routing conveyors.
Press Fit Assembly
Drives bearings into automotive housings on an assembly line, relying on adjustable air cushions at both ends to soften the impact at the end of the stroke.
Is the Airtac SAI80 Standard Air Cylinder SAI80X270SG the Right Cylinder?
Select this 80mm bore model when an application requires substantially more thrust than a 63mm cylinder can provide, which only yields 1559 N of push force at 0.5 MPa. The SAI80X270-S increases that output by nearly a kilonewton while maintaining the same 30-800 mm/s speed range. Conversely, if your system demands over 3927 N of push force, stepping up to the 100mm bore variant is the appropriate choice.
At a 270mm stroke, the unsupported length of the piston rod increases, making it susceptible to bending under heavy side loads. To prevent premature rod-bearing wear, implement an external linear guide or use a guided cylinder module to absorb lateral forces. Remember that standard air cushions only decelerate the piston near the end caps; they do not lock the rod in place. If the machinery requires absolute position holding during a loss of air pressure, integrate an external pilot-operated check valve or specify the SAIL locking variant. As a drop-in ISO 15552 replacement, it matches standard mounting dimensions for FA, FB, LB, and TC accessory kits, uses a G3/8 port, and requires no footprint adjustments when swapping from other ISO-compliant brands.
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 SAI80X270SG FAQ
At a standard operating pressure of 0.5 MPa, this 80mm bore cylinder generates a push force of 2513 N and a pull force of 2268 N. If pressure is increased to 0.7 MPa, the push force rises to 3518 N.
Yes, the SAI80X270-S is manufactured to the ISO 15552 standard, making its mounting interface and envelope dimensions fully interchangeable with other ISO 15552 profile cylinders of the same bore size.
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