Airtac SAI125 Standard Air Cylinder SAI125X190
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X190 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 190mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ125 mm
- Stroke190 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X190
The AirTAC SAI125X190 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty handling, delivering a robust 6136 N push force at 0.5 MPa and 8590 N at 0.7 MPa. The 190 mm stroke is a non-catalog standard intermediate length, providing exact kinematic motion for specialized machinery without needing mechanical spacers.
This genuine pneumatic actuator features a standard carbon steel piston rod and a tapered PT port thread. For high-temperature environments up to 70 C, the standard TPU seals can be swapped for Viton (H) elastomers, while the extruded aluminum barrel includes dual-side sensor grooves compatible with CMSE switches when a magnet is specified.
Airtac SAI125 Standard Air Cylinder SAI125X190 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X190 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 190 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 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 (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAI125 Standard Air Cylinder SAI125X190
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×190 | 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 SAI125 Standard Air Cylinder SAI125X190 Is Used
Heavy Metal Stamping
Provides the high tonnage required to actuate large press dies and form thick gauge metal components securely.
Large Clamp Actuation
Drives heavy-duty clamping arms to secure large automotive molds or composite panels during machining operations.
Pallet Diverting
Actuates robust routing gates to divert fully loaded pallets weighing several hundred kilograms across material handling lines.
Is the Airtac SAI125 Standard Air Cylinder SAI125X190 the Right Cylinder?
Selecting this 125 mm bore over the smaller 100 mm variant upgrades your thrust from 5497 N to 8590 N at 0.7 MPa, whereas stepping up to the 160 mm bore yields 14074 N. Because this 190 mm stroke is a custom intermediate length, verify that your mounting accessories—such as an FA flange or CA clevis—clear the piston travel.
Since the stroke is below 300 mm, rod bearing bending is minimal, but side loads should still be managed with an external guide rail. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold a load. If your application requires dead-stop holding without live air pressure, integrate the SAIL (air-released lock) variant or 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 SAI125 Standard Air Cylinder SAI125X190 FAQ
At an operating pressure of 0.7 MPa, this 125 mm bore cylinder generates 8590 N of push force and 5734 N of pull force.
Yes, the SAI125X190 is dimensionally interchangeable per ISO 15552, meaning it matches the mounting interface and hole patterns of other ISO 15552 profile cylinders.
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