Airtac SAI125 Standard Air Cylinder SAI125BX130S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125BX130S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 130mm 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
- Stroke130 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125BX130S
The AirTAC SAI125X130-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It delivers a substantial 6136 N push force at 0.5 MPa, extending 130 mm to drive demanding industrial loads. The extruded aluminum barrel design omits tie rods, providing a clean exterior that resists contamination in harsh environments.
This specific configuration includes a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in wet or chemically exposed settings. Equipped with a magnet (-S), it seamlessly integrates with CMSE and DMSE reed switches fitted into the dual sensor grooves on the barrel. It also features adjustable air cushions at both ends to dampen impact at speeds up to 500 mm/s.
Airtac SAI125 Standard Air Cylinder SAI125BX130S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125BX130S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 130 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 SAI125BX130S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×130 | 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 SAI125BX130S Is Used
Heavy Stamping Press
Provides the high 6136 N push force required to actuate heavy metal forming and stamping presses reliably.
Injection Molding Extraction
SUS304 rod material withstands humid plant environments while extracting large molded plastic parts from injection machines.
Pallet Diverter
Shifts heavy palletized loads onto secondary packaging lines where the 130 mm stroke moves products cleanly off the main conveyor belt.
Is the Airtac SAI125 Standard Air Cylinder SAI125BX130S the Right Cylinder?
Select this 125 mm bore when 100 mm (3927 N at 0.5 MPa) lacks the necessary thrust, but a larger 160 mm bore would be excessive. The 130 mm stroke is well below the 1500 mm maximum, keeping the rod bearing stress low without requiring external guide rails. For applications needing position holding without sustained air pressure, note that the standard adjustable cushion only decelerates the piston and does not lock it; consider the SAIL variant for pneumatic locking.
As a true ISO 15552 profile cylinder, it offers a drop-in dimensional replacement for other ISO 15552 compliant units. Ensure your system matches the PT G1/2 port size, the required 130 mm stroke, and the chosen mounting accessories (such as LB foot or TC trunnion) before finalizing your build.
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 SAI125BX130S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder generates 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
Yes, this is a genuine AirTAC ISO 15552 profile cylinder. Its standardized mounting dimensions make it interchangeable with other ISO 15552 compliant cylinders, provided the PT G1/2 port and 130 mm stroke match your existing fixture.
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