Airtac SAI125 Standard Air Cylinder SAI125AX65
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX65 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 65mm 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
- Stroke65 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX65
The AirTAC SAI125X65 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation, delivering a robust push force of 6136 N at 0.5 MPa. Its extruded aluminum barrel omits tie rods for a clean, structurally rigid profile. This specific 65 mm stroke is ideal for short-trroke clamping, heavy pressing, or holding mechanisms in large-scale machinery.
This configuration features a SUS420J2 stainless steel piston rod (material code A) for superior corrosion and wear resistance in demanding environments. Fluid supply connects via PT tapered threads, and operators can integrate position feedback by adding a magnet for CMSE or DMSE switches in the dual sensor grooves.
Airtac SAI125 Standard Air Cylinder SAI125AX65 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX65 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 65 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 SAI125AX65
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×65 | 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 SAI125AX65 Is Used
Heavy-Duty Pressing
Generates 6136 N of thrust at 0.5 MPa, making it perfect for short-stroke metal stamping, riveting, and heavy assembly presses.
Industrial Clamping
Provides immense holding power for large weldments or machining fixtures, utilizing its 65 mm stroke to secure heavy workpieces.
Pallet Diverting
Acts as a high-power diverting or stopping gate on heavy-load roller conveyors, easily handling substantial pallet weights.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX65 the Right Cylinder?
Choose this 125 mm bore when 100 mm (3927 N at 0.5 MPa) is insufficient for your load, but you want to avoid the larger 160 mm bore (10053 N at 0.5 MPa) to save air consumption. The 65 mm stroke is highly effective for compact, high-force operations.
Because a standard SAI relies on live air pressure to move and maintain position, it will drift if air is lost; for fail-safe load holding, select the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. As an ISO 15552 cylinder, it serves as a drop-in replacement for any standard 125 mm bore, 65 mm stroke, PT port, non-magnet profile cylinder using standard FA or LB mounting accessories.
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 SAI125AX65 FAQ
At 0.5 MPa, it provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
Yes, it is a genuine ISO 15552 profile cylinder, meaning its mounting dimensions allow it to serve as a drop-in replacement for any standard 125 mm bore ISO 15552 cylinder.
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.
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Most inquiries answered within 7-8 hours.
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