Airtac SAI50 Standard Cylinder SAI50X125
The AirTAC SAI50 Standard Cylinder SAI50X125 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 125mm 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
- Stroke125 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 SAI50X125
The AirTAC SAI50X125 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and 125mm stroke. It generates 982N of push force and 825N of pull force at 0.5 MPa, making it a robust choice for medium-duty automation. The extruded aluminum barrel design omits tie rods, presenting a clean exterior that drops directly into standard ISO 15552 mounting footprints.
Equipped with adjustable air cushions at both ends, this actuator effectively decelerates loads at stroke extremes. The standard piston rod is machined from carbon steel for mechanical durability, and the barrel features dual sensor grooves for mounting CMSE or DMSE switches when position feedback is required.
Airtac SAI50 Standard Cylinder SAI50X125 Technical Specifications
| Model | Airtac SAI50 Standard Cylinder SAI50X125 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 125 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 SAI50X125
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×125 | 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 SAI50X125 Is Used
Component Clamping
Ideal for securing medium-weight workpieces during machining or assembly, utilizing its 982N push force at 0.5 MPa to maintain rigid positioning.
Package Diverting
The 125mm stroke provides the precise linear extension needed to actuate diverter arms on packaging lines, sorting products efficiently at operating speeds up to 800 mm/s.
Gate Control
Suitable for operating safety gates and machine guards, where the double-acting design guarantees reliable retraction under pneumatic exhaust.
Is the Airtac SAI50 Standard Cylinder SAI50X125 the Right Cylinder?
Selecting this 50mm bore unit provides 982N of thrust at 0.5 MPa, offering a noticeable step up in power over the 40mm bore variant, which supplies 628N under identical pressure. If your application requires less force and a smaller footprint, stepping down to the 40mm model is advisable. For this 125mm stroke, side-load bending is minimal, but ensure your front mounting is square to prevent premature rod-bearing wear.
When configuring your replacement, verify the 50mm bore, 125mm stroke, and G1/4 port thread. The standard configuration uses PT tapered ports and a carbon steel rod. If you need to hold a load vertically without constant air pressure, note that the standard adjustable cushion only decelerates motion and does not lock the piston; you must specify the SAIL variant for pneumatic locking or use an external rod lock.
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 SAI50X125 FAQ
The SAI50X125 cylinder provides a theoretical push force of 982N and a pull force of 825N at an operating pressure of 0.5 MPa. At 0.7 MPa, the push force increases to 1374N.
Yes, the SAI50X125 is dimensionally interchangeable per ISO 15552 standards. It matches the mounting interface and center distances of other ISO 15552 profile cylinders, allowing it to serve as a direct replacement.
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Standard models are processed and dispatched in 3-5 business days.
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