Airtac SAI125 Standard Air Cylinder SAI125AX35
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX35 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 35mm 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
- Stroke35 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX35
The AirTAC SAI125X35 is a double-acting profile cylinder built to the ISO 15552 standard, ensuring dimensional interchangeability for universal mounting. It delivers a robust push force of 6136 N at 0.5 MPa, making it suited for heavy-duty pressing and clamping. This specific 35 mm stroke provides compact actuation where high force is needed in a tight linear space.
This unit features a SUS420J2 stainless steel piston rod (option A) for superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes dual sensor grooves for direct CMSE or DMSE switch mounting, though a magnet must be specified separately if position detection is required.
Airtac SAI125 Standard Air Cylinder SAI125AX35 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX35 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 35 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 SAI125AX35
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×35 | 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 SAI125AX35 Is Used
Heavy-Duty Stamping
Provides the 6136 N force necessary for short-stroke metal stamping and forming operations.
High-Capacity Diverter
Actuates heavy-duty diverter arms on high-throughput material handling lines.
Industrial Clamping
Secures large workpieces during heavy machining processes using its massive clamping force.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX35 the Right Cylinder?
With a 125 mm bore generating 6136 N at 0.5 MPa, stepping down to a 100 mm bore reduces the push force to 3927 N, while moving up to a 160 mm bore increases it to 10053 N. The PT tapered port threads ensure a tight, leak-free pneumatic connection. Because the stroke is only 35 mm, side-load stress on the rod bearing is minimal. Note that the standard adjustable air cushions only decelerate the piston at stroke ends and do not hold loads; if static holding without air pressure is required, consider the SAIL or BSAI locking variants.
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 SAI125AX35 FAQ
The SAI125X35 generates a push force of 6136 N and a pull force of 5734 N at 0.5 MPa, reaching 8590 N push at 0.7 MPa.
Yes, as a genuine ISO 15552 profile cylinder, its mounting and interface dimensions are interchangeable with other ISO 15552 standard cylinders.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
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