Airtac SAI125 Standard Air Cylinder SAI125AX190
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX190 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 SAI125AX190
The AirTAC SAI125X190 is a double-acting ISO 15552 profile cylinder built for heavy-duty automation. It delivers a robust 6136 N push force at 0.5 MPa, making it ideal for high-thrust clamping and lifting tasks. This unit features a custom 190 mm stroke to fit specialized machinery envelopes where standard lengths fall short.
Equipped with a SUS420J2 stainless steel piston rod (option A), it provides excellent corrosion resistance for humid or washdown environments. The extruded aluminum barrel includes dual sensor grooves for CMSE or DMSE switches, though this specific configuration does not include a magnet. If your sequence requires end-of-stroke confirmation, request the -S magnet variant.
Airtac SAI125 Standard Air Cylinder SAI125AX190 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX190 |
|---|---|
| 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 SAI125AX190
| 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 SAI125AX190 Is Used
Heavy-Duty Stamping
Provides the high thrust necessary for pressing bearings and heavy components into housings on automotive assembly lines.
Plastic Injection Molding
Drives large mold ejectors and core pulls where substantial force and reliable operation are required.
Pallet Handling
Actuates heavy-duty lift gates and pushers in automated storage and retrieval systems for palletized goods.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX190 the Right Cylinder?
Selecting this bore size makes sense when 80 mm cylinders (2513 N at 0.5 MPa) lack the power to move your load, but you want to avoid the larger footprint of a 160 mm unit. The 190 mm stroke is a made-to-order length; ensure your machinery accepts this specific extension. For this heavy-duty class, operating speed ranges from 30-500 mm/s.
Because this is a double-acting cylinder, it relies on continuous air pressure to hold position. If your application must prevent drifting or dropping loads during a pressure loss or valve centering, integrate the SAIL variant with an air-released lock or use an external pilot-operated check valve. As a true ISO 15552 profile cylinder, it serves as a drop-in replacement for any standard 125 mm bore with PT G1/2 ports and standard mounting accessories like FA flanges or TC trunnions.
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 SAI125AX190 FAQ
At a 0.5 MPa operating pressure, this 125 mm bore cylinder generates a push force of 6136 N and a pull force of 5734 N. At the maximum 1.0 MPa pressure, it can deliver up to 1251 kgf.
Yes, the SAI series is a genuine ISO 15552 profile cylinder. It is dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke, utilizing standard PT G1/2 ports and matching mounting interfaces.
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