Airtac SAI125 Standard Air Cylinder SAI125AX200
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX200 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 200mm 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
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX200
The AirTAC SAI125X200 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering 6136N of push force at 0.5 MPa, this 125mm bore unit is built to move substantial masses with precision. The extruded aluminum barrel design omits traditional tie-rods, providing a clean exterior and optimized structural integrity for demanding industrial environments.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for superior corrosion and wear resistance in harsh settings. It utilizes PT tapered port threads (G1/2) for secure pneumatic connections. While the standard adjustable air cushions absorb kinetic energy at both stroke ends, applications requiring dead-stop holding under pressure loss should integrate the SAIL locking variant.
Airtac SAI125 Standard Air Cylinder SAI125AX200 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX200 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 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 SAI125AX200
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×200 | 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 SAI125AX200 Is Used
Heavy-Duty Stamping
Generates 6136N of thrust at 0.5 MPa to actuate large metal forming and stamping presses reliably.
Automotive Assembly
Provides robust clamping force for holding heavy chassis or powertrain components during robotic welding.
Pallet Handling
Drives heavy-duty lifting and positioning mechanisms for automated palletizing lines and packaging cells.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX200 the Right Cylinder?
Selecting this 125mm bore cylinder is ideal when 50mm or 63mm models lack the necessary thrust, stepping up from the 63mm bore's 1559N to a robust 6136N at 0.5 MPa. The 200mm stroke provides ample travel for large clamping or lifting tasks. Because it adheres strictly to ISO 15552 mounting dimensions, it serves as a direct, drop-in dimensional replacement for other profile cylinders in the same standard class.
For this 200mm stroke, side-load stress on the rod bearing is minimal, but if guiding heavy off-center loads, pair it with external linear rails. Remember that the standard adjustable cushions only decelerate the piston near the end of travel; they do not function as a locking brake. If your fixture must hold a vertical load safely during an air pressure failure, specify the SAIL (air-released lock) or BSAI (clamp-lock) variant instead.
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 SAI125AX200 FAQ
At a 0.5 MPa operating pressure, the SAI125X200 delivers 6136N of push force and 5734N of pull force. At 0.7 MPa, the push force increases to 8590N.
Yes, the SAI125X200 is dimensionally interchangeable per the ISO 15552 standard. It matches the mounting footprint and port sizes of other ISO 15552 profile cylinders, allowing for seamless drop-in replacement.
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 SAI125AX200
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.