Airtac SAI80 Standard Air Cylinder SAI80X275
The AirTAC Airtac SAI80 Standard Air Cylinder SAI80X275 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 275mm 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
- Stroke275 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 SAI80X275
The AirTAC SAI80X275 is a double-acting ISO 15552 profile cylinder engineered to deliver a robust 2513 N of push force at 0.5 MPa. Its 275 mm stroke makes it highly suitable for mid-range linear actuation tasks requiring substantial movement and power. The extruded aluminum barrel design omits tie rods, providing a clean exterior that simplifies mounting and sensor placement.
This specific configuration features a standard carbon steel piston rod and PT tapered port threads. Because it lacks an integrated magnet, position sensing requires external switches. For operations experiencing thermal extremes up to +70 C, the standard TPU seals can be swapped for Viton (H) or NBR (N) variants during the made-to-order process.
Airtac SAI80 Standard Air Cylinder SAI80X275 Technical Specifications
| Model | Airtac SAI80 Standard Air Cylinder SAI80X275 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 275 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 SAI80X275
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×275 | 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 SAI80X275 Is Used
Heavy Material Lift
Provides the 2513 N push force required to elevate heavy material racks and pallets through a 275 mm vertical stroke on automated packaging lines.
Press Ejection
Delivers reliable kinetic energy to eject formed metal or plastic components from press dies, utilizing adjustable cushions to absorb impact at stroke end.
Pallet Diversion
Actuates heavy-duty diverter arms on conveyor systems, where the substantial bore size ensures consistent momentum transfer to redirect loaded pallets.
Is the Airtac SAI80 Standard Air Cylinder SAI80X275 the Right Cylinder?
Selecting this 80 mm bore over the smaller 63 mm variant significantly increases thrust, jumping from 1559 N to 2513 N at 0.5 MPa. If your application requires less force, stepping down reduces air consumption. Because the 275 mm stroke generates extended rod travel, evaluate potential side loads; long unsupported rods are susceptible to bending, so utilizing an external guide rail or a guided cylinder is recommended to prevent premature rod-bearing wear.
As a dimensionally interchangeable ISO 15552 unit, this cylinder serves as a direct drop-in replacement for other standard profile cylinders sharing the same 80 mm bore, 275 mm stroke, G3/8 port, and mounting footprint. It utilizes adjustable air cushions at both ends to decelerate the piston smoothly. Note that a standard SAI does not hold position if air pressure is lost; for dead-load holding, consider the SAIL or BSAI locking variants.
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 SAI80X275 FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513 N of push force and 2268 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 3518 N.
No, the standard SAI80X275 relies on air pressure to maintain its position and will drift if pressure is lost. The adjustable air cushion only decelerates the piston near the end of the stroke. For dead-load holding, use the SAIL (air-released lock) or BSAI (clamp-lock) variants.
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