Airtac SAI125 Standard Air Cylinder SAI125BX170
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125BX170 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 170mm 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
- Stroke170 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125BX170
The AirTAC SAI125X170 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 8590 N push force at 0.7 MPa across a 170 mm stroke, it excels in high-thrust pressing and heavy load transfer. The extruded aluminum barrel omits tie rods, providing a clean exterior and high structural rigidity.
This specific configuration features a SUS304 stainless steel piston rod (option B) for superior corrosion resistance in washdown or chemically exposed environments. Fluid supply connects via PT tapered ports, ensuring tight, leak-free pneumatic connections. For applications needing position verification, the barrel includes dual sensor grooves ready for CMSE or DMSE switches when a magnet is specified.
Airtac SAI125 Standard Air Cylinder SAI125BX170 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125BX170 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 170 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 SAI125BX170
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×170 | 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 SAI125BX170 Is Used
Heavy-Duty Stamping
Provides the 8590 N force at 0.7 MPa required for deforming thick metal sheets and executing solid mechanical stamping operations.
Automotive Assembly
Ideal for pushing heavy chassis components together or actuating large robotic clamping fixtures on welding lines.
Pallet Handling
Drives robust lifting and positioning mechanisms for heavy loaded pallets in high-throughput distribution centers.
Is the Airtac SAI125 Standard Air Cylinder SAI125BX170 the Right Cylinder?
With a 125 mm bore generating 6136 N at 0.5 MPa, this model sits comfortably above the 100 mm bore (3927 N at 0.5 MPa) for heavy pressing, yet below the massive 160 mm bore (10053 N at 0.5 MPa) which is reserved for extreme forming tasks. If your application requires less force and faster cycling, stepping down to the 100 mm bore optimizes air consumption.
Because this cylinder lacks a position lock, the piston will drift if air pressure is lost or the control valve is centered. For vertical loads that must be held securely during an emergency stop or pressure drop, specify the SAIL variant with an air-released lock, or integrate an external pilot-operated check valve. When replacing an existing ISO 15552 cylinder, match the 125 mm bore, 170 mm stroke, PT port thread, and mounting accessory type.
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 SAI125BX170 FAQ
At an operating pressure of 0.7 MPa, this 125 mm bore cylinder provides a push force of 8590 N and a pull force of 5734 N.
Yes, it is built to the ISO 15552 profile standard, making its mounting dimensions fully interchangeable with other ISO 15552 compliant cylinders of the same bore size.
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Standard models usually ship in 3-4 days.
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