Airtac SAI125 Standard Air Cylinder SAI125X600S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X600S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 600mm 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
- Stroke600 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X600S
The AirTAC SAI125X600-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It provides a substantial push force of 6136 N and a pull force of 5734 N at 0.5 MPa, making it well-suited for moving large masses over its 600 mm stroke. The extruded aluminum barrel design omits tie rods for a clean exterior.
Configured with a standard carbon steel piston rod and a magnet for position sensing, this model integrates seamlessly with CMSE and DMSE reed switches via the dual sensor grooves machined into the barrel. Fluid compatibility is limited to filtered air, and the PT tapered port threads ensure a robust, leak-free pneumatic connection.
Airtac SAI125 Standard Air Cylinder SAI125X600S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X600S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 600 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 SAI125X600S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×600 | 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 SAI125X600S Is Used
Heavy Stamping
Provides the robust 6136 N push force required to actuate large mechanical presses and form heavy-gauge metal components over a 600 mm travel distance.
Pallet Diverting
Shifts heavy loaded pallets across high-throughput transfer lines, utilizing the magnet and CMSE sensors to confirm full extension and retraction.
Automated Welding
Positions large automotive chassis sub-assemblies into welding fixtures, where the carbon steel rod provides necessary rigidity for industrial handling.
Is the Airtac SAI125 Standard Air Cylinder SAI125X600S the Right Cylinder?
Select this 125 mm bore when an application demands higher thrust than a 100 mm bore can provide, specifically upgrading from 3927 N to 6136 N at 0.5 MPa. If the 600 mm stroke is excessive for your cycle time, stepping down to a 500 mm stroke reduces overall envelope size while maintaining the same force output.
Because this model features a 600 mm stroke, the extended rod is susceptible to bending under side loads. Utilize an external guide rail or a dedicated guided cylinder to support the load and prevent premature rod-bearing wear. Note that the adjustable air cushions only decelerate the piston at end-of-stroke; they will not hold a load if air pressure drops. For position holding without live pressure, 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 SAI125X600S FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder generates a push force of 6136 N and a pull force of 5734 N. If pressure is increased to 0.7 MPa, the push force rises to 8590 N.
Yes, the SAI125X600-S is dimensionally interchangeable per ISO 15552. You can drop it into existing ISO 15552 mounting interfaces, matching the 125 mm bore, 600 mm stroke, and G1/2 port size.
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