Airtac SAI40 Standard Air Cylinder SAI40X115
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X115 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 115mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke115 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 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 SAI40 Standard Air Cylinder SAI40X115
The AirTAC SAI40X115 is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and a 115mm stroke. It delivers a push thrust of 628N at 0.5 MPa, extending to 879N at 0.7 MPa, making it well-suited for mid-range automation tasks. The barrel is extruded aluminum without tie-rods, offering a clean profile that drops directly into existing ISO 15552 mounting interfaces.
This specific configuration utilizes a carbon steel piston rod for robust strength and standard PT tapered port threads. The standard TPU seals handle operating temperatures from -20 to +70 C; if your environment requires higher thermal resistance, Viton (H) seals are available as an alternative option.
Airtac SAI40 Standard Air Cylinder SAI40X115 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X115 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 115 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI40 Standard Air Cylinder SAI40X115
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×115 | 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 SAI40 Standard Air Cylinder SAI40X115 Is Used
Component Clamping
Provides reliable 628N clamping force at 0.5 MPa for securing workpieces during machining or assembly operations.
Package Diverting
The 115mm stroke is optimal for actuating diverter arms and sorting gates on moderate-speed conveyor lines.
Gate Control
Drives safety guards and access gates on automated cells, utilizing the adjustable end cushions to ensure soft, impact-free closure.
Is the Airtac SAI40 Standard Air Cylinder SAI40X115 the Right Cylinder?
Selecting this 40mm bore over the smaller 32mm variant upgrades your thrust from 402N to 628N at 0.5 MPa, providing extra power for heavier fixtures. If your application requires even greater force, stepping up to the 50mm bore yields 982N at the same pressure. This 115mm stroke offers a balanced extension length for compact machinery.
Because this is a double-acting cylinder, it relies on continuous air pressure to move and maintain position. If air is exhausted or a valve is centered, the piston will drift and cannot hold a load. For applications requiring fail-safe holding, consider the SAIL variant with an air-released lock or the BSAI clamp-lock cylinder. For interchangeability, match the 40mm bore, 115mm stroke, PT G1/4 port, and mounting accessories like FA flange or LB foot brackets.
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 SAI40 Standard Air Cylinder SAI40X115 FAQ
The SAI40X115 generates a push force of 628N at 0.5 MPa and 879N at 0.7 MPa. The pull force is 528N at 0.5 MPa.
Yes, the SAI40X115 is dimensionally interchangeable with other ISO 15552 profile cylinders. Ensure your mounting hardware, G1/4 port, and 115mm stroke match the existing fixture.
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Covers non-human-caused product damage.
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