Airtac SAI80 Standard Air Cylinder SAI80X40S
The AirTAC Airtac SAI80 Standard Air Cylinder SAI80X40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 40mm 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
- Stroke40 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 SAI80X40S
The AirTAC SAI80X40-S is a double-acting ISO 15552 profile cylinder featuring an 80mm bore and a 40mm stroke. It provides a robust push force of 2513 N and a pull force of 2268 N at 0.5 MPa, making it well-suited for heavy-duty short-travel clamping and pressing tasks. Its extruded aluminum barrel design omits tie rods, offering a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
Equipped with a magnetic piston (-S), this model supports direct mounting of CMSE or DMSE sensor switches along the dual grooves machined into both sides of the barrel. The standard carbon steel piston rod ensures high tensile strength for demanding industrial environments, while the adjustable air cushions at both ends absorb impact energy at the stroke limits.
Airtac SAI80 Standard Air Cylinder SAI80X40S Technical Specifications
| Model | Airtac SAI80 Standard Air Cylinder SAI80X40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 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 SAI80X40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×40 | 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 SAI80X40S Is Used
Heavy-Duty Clamping
Secures large metal castings or heavy timber blocks during machining, utilizing the 2513 N push force to prevent workpiece shifting under aggressive cutting loads.
Short-Stroke Pressing
Performs insertion or stamping operations within confined machinery frames, taking advantage of the 40mm stroke and robust 80mm bore power profile.
Pallet Stopping
Acts as a high-capacity stop gate on heavy-load roller conveyors, absorbing the impact of incoming pallets via its integrated adjustable air cushions.
Is the Airtac SAI80 Standard Air Cylinder SAI80X40S the Right Cylinder?
Choose this 80mm bore when an application demands significantly more thrust than a 63mm cylinder (which offers 1559 N push at 0.5 MPa) but does not require the full 3927 N output of a 100mm unit. The short 40mm stroke is optimal for compact, high-force operations where space along the axis is restricted. For installations needing to maintain a load during a complete loss of air pressure, the standard SAI will not hold its position; consider the SAIL (air-released lock) or BSAI (clamp-lock) variants for fail-safe holding requirements. Replacement specification requires matching the 80mm bore, 40mm stroke, G3/8 PT port, and appropriate mounting accessories like FA flanges or TC trunnions.
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 SAI80X40S FAQ
At an 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 SAI80X40-S is built to the ISO 15552 dimensional standard. As a profile barrel cylinder, it serves as a drop-in replacement for other ISO 15552 cylinders, provided you match the 80mm bore, 40mm stroke, and G3/8 port size.
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