Airtac SAI125 Standard Air Cylinder SAI125X190S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X190S 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 SAI125X190S
The AirTAC SAI125X190-S is a double-acting ISO 15552 profile cylinder featuring a 125mm bore and 190mm stroke. It provides a robust push force of 6136 N and a pull force of 5734 N at 0.5 MPa, making it well-suited for heavy-duty positioning tasks. The extruded aluminum barrel omits tie-rods, presenting a clean exterior that directly matches standardized ISO 15552 mounting interfaces.
This specific unit includes a standard carbon steel piston rod and a built-in magnet for non-contact position detection using CMSE or DMSE series switches. The dual lateral sensor grooves simplify switch installation along the barrel. For applications demanding higher thermal resistance, the standard TPU seals can be swapped for Viton (H) alternatives to handle elevated operating temperatures.
Airtac SAI125 Standard Air Cylinder SAI125X190S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X190S |
|---|---|
| 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 SAI125X190S
| 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 SAI125X190S Is Used
Heavy Stamping
Drives large metal forming and stamping presses requiring 6136 N of push force at 0.5 MPa.
Automotive Assembly
Actuates substantial jigs and heavy component lifts on automotive manufacturing lines.
Pallet Handling
Indexes loaded pallets and manipulates heavy materials in automated distribution centers.
Is the Airtac SAI125 Standard Air Cylinder SAI125X190S the Right Cylinder?
Selecting this 125mm bore over the smaller 100mm option provides a significant force upgrade, jumping from 3927 N to 6136 N at 0.5 MPa. If your application requires even more thrust, stepping up to the 160mm bore yields 10053 N at the same pressure. Because this cylinder has a 190mm stroke, side-load stress on the rod bearing is minimal, though keeping the load axially aligned remains best practice.
This model uses a G1/2 PT tapered port and an M27x2 rod thread. As a true ISO 15552 profile cylinder, it serves as a drop-in replacement for other ISO 15552 cylinders without relying on proprietary brand footprints. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end; they do not hold loads. If pressure is lost, the piston drifts. For dead-drop prevention, use the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) 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 SAI125 Standard Air Cylinder SAI125X190S FAQ
At an operating pressure of 0.5 MPa, the SAI125X190-S generates 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
Yes, the SAI125X190-S is dimensionally interchangeable per ISO 15552 standards. You can use it as a drop-in replacement for other ISO 15552 profile cylinders by matching the 125mm bore, 190mm stroke, and mounting accessories.
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