Airtac SAI125 Standard Air Cylinder SAI125AX140
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX140 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX140
The AirTAC SAI125X140 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 6136 N of push force at 0.5 MPa, it excels in high-thrust operations. The 140 mm stroke provides ample extension for substantial clamping and lifting tasks.
This model features a SUS420J2 stainless steel piston rod (material code A) for superior corrosion resistance and mechanical durability. It utilizes PT tapered port threads and lacks an internal magnet, meaning it is optimized purely for pneumatic actuation without direct sensor integration.
Airtac SAI125 Standard Air Cylinder SAI125AX140 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX140 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 140 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 SAI125AX140
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×140 | 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 SAI125AX140 Is Used
Heavy-Duty Stamping
Provides the necessary 6136 N push force at 0.5 MPa for securely pressing metal and plastic components in automated fabrication lines.
Industrial Clamping
Ideal for holding large workpieces stationary during heavy machining operations, utilizing its 140 mm stroke to accommodate varying part sizes.
Pallet Lifting
Excels in end-of-line packaging systems where robust lifting force is required to elevate heavy palletized goods to conveyor height.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX140 the Right Cylinder?
Selecting this bore size is ideal when an application requires upward of 6000 N of force but falls short of needing the 10053 N provided by the larger 160 mm variant. If your load demands less than 4000 N, stepping down to the 100 mm bore significantly reduces air consumption and physical footprint.
Because the standard SAI125X140 does not hold its position upon loss of air pressure, implement an external pilot-operated check valve or select the SAIL lock variant for fail-safe load holding. As a true ISO 15552 profile cylinder, it serves as a direct dimensional drop-in replacement for other ISO 15552 cylinders, matching standard mounting interfaces like the CA clevis or FA flange.
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 SAI125AX140 FAQ
At an operating pressure of 0.5 MPa, the SAI125X140 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 SAI125X140 is a genuine ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other standard ISO 15552 cylinders of the same bore size.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAI125 Standard Air Cylinder SAI125AX140
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.