Airtac SAI50 Standard Cylinder SAI50X115S
The AirTAC SAI50 Standard Cylinder SAI50X115S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm 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.
- BoreØ50 mm
- Stroke115 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- 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 SAI50 Standard Cylinder SAI50X115S
The AirTAC SAI50X115-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 115 mm stroke provides the exact mid-range extension needed for clamping, lifting, and indexing tasks without excessive overhang.
Equipped with a magnetic piston, this unit supports CMSE and DMSE position sensing via the dual sensor grooves machined into the extruded aluminum barrel. It utilizes a standard carbon steel piston rod and PT tapered port threads to ensure robust, leak-free pneumatic connections in demanding industrial environments.
Airtac SAI50 Standard Cylinder SAI50X115S Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X115S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 115 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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, 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI50 Standard Cylinder SAI50X115S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | 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 SAI50 Standard Cylinder SAI50X115S Is Used
Parts Clamping
Provides 982 N of secure clamping force at 0.5 MPa for holding aluminum or steel workpieces during CNC machining and milling processes.
Package Diverting
Uses the 115 mm stroke to extend a diverter arm, accurately routing medium-weight cartons across packaging and distribution conveyor lines.
Material Lift
Raises lightweight tooling platforms and product trays in automated assembly cells, utilizing the magnetic piston for precise end-of-stroke confirmation.
Is the Airtac SAI50 Standard Cylinder SAI50X115S the Right Cylinder?
Selecting this 50 mm bore cylinder makes sense when a 40 mm bore (628 N at 0.5 MPa) lacks the necessary thrust, but a larger 63 mm bore is physically oversized for the machine envelope. The 115 mm stroke is a non-catalog standard length, offering custom machine-build flexibility without requiring a full bespoke design.
For direct replacements, this model is dimensionally interchangeable per ISO 15552. Ensure your setup uses a G1/4 port and pair it with an FA or FB flange accessory if rigid front mounting is required. Because it is a standard double-acting actuator, it will not maintain load position if air pressure drops; for dead-end holding, integrate an external pilot-operated check valve or specify the SAIL locking variant.
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 SAI50 Standard Cylinder SAI50X115S FAQ
At a standard operating pressure of 0.5 MPa, this 50 mm bore cylinder generates 982 N of push force and 825 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 1374 N.
Yes. The SAI50X115-S is a genuine ISO 15552 profile cylinder, meaning its mounting dimensions and interface are fully interchangeable with other ISO 15552 cylinders from brands like Festo or SMC, provided the bore and stroke match.
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