Airtac SAI40 Standard Air Cylinder SAI40AX115
The AirTAC SAI40 Standard Air Cylinder SAI40AX115 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- 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 SAI40AX115
The AirTAC SAI40X115 is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force at 0.5 MPa. Its 115 mm stroke provides the exact mid-range extension needed for compact clamping and indexing tasks. Built with an extruded aluminum barrel, this tie-rod-less design drops directly into standardized ISO 15552 mounting footprints.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It utilizes PT tapered port threads and operates without a magnet. For high-temperature environments up to 70 C, the standard TPU seals handle the job, though Viton (H) alternatives are available for extreme thermal demands.
Airtac SAI40 Standard Air Cylinder SAI40AX115 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX115 |
|---|---|
| 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 SAI40AX115
| 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 SAI40AX115 Is Used
Compact Part Clamping
Provides 628 N of clamping force at 0.5 MPa, ideal for securing medium-sized machined components during secondary milling or drilling operations.
Package Diverting
The 115 mm stroke actuates diverter gates on packaging lines, offering rapid 30-800 mm/s cycling speeds to maintain high throughput.
Press Insertion
Delivers consistent downward force to press small bearings or bushings into housings without requiring a full hydraulic press setup.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX115 the Right Cylinder?
Select this 40 mm bore when an application requires stepping up from the 32 mm class (which only offers 402 N at 0.5 MPa) but does not need the bulk of a 50 mm cylinder. The 115 mm stroke hits a sweet spot for short-travel automation. Because this is a double-acting cylinder, air pressure drives both the extend and retract strokes.
If your fixture loses air pressure, this standard SAI cylinder cannot hold its load in place and will drift. For suspended or gravity-loaded applications requiring fail-safe holding, specify the SAIL variant with an air-released lock or the BSAI clamp-lock. To replace an existing ISO 15552 unit, match the 40 mm bore, 115 mm stroke, G1/4 port, and choose standard 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 SAI40AX115 FAQ
At a standard operating pressure of 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 879 N.
Yes, the SAI40X115 is dimensionally interchangeable per ISO 15552. You can drop it into existing mounts matching the 40 mm bore, 115 mm stroke, and G1/4 port size, though it is a distinct AirTAC part.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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