Airtac SAI125 Standard Air Cylinder SAI125AX600
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX600 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 SAI125AX600
The AirTAC SAI125X600 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty operations, delivering 6136 N of push force at 0.5 MPa. Its extruded aluminum barrel design omits traditional tie-rods, providing a smooth exterior that integrates seamlessly into high-demand industrial assemblies.
This 600 mm stroke variant is equipped with a SUS420J2 stainless steel piston rod (code A) for superior corrosion resistance in harsh environments. It utilizes PT tapered port threads, and while it lacks a magnet for standard sensor tracking, the adjustable air cushions at both ends effectively decelerate the large 125 mm piston.
Airtac SAI125 Standard Air Cylinder SAI125AX600 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX600 |
|---|---|
| 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 SAI125AX600
| 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 SAI125AX600 Is Used
Heavy-Duty Stamping
Provides the robust 6136 N push force required for metal forming and heavy assembly stamping tasks.
Large Material Clamping
The 600 mm stroke accommodates wide workpieces, securely positioning large panels for machining.
Pallet Diversion
Executes long-range diverting motions on heavy-duty conveyor lines where high mass must be redirected.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX600 the Right Cylinder?
Selecting this 125 mm bore over the smaller 100 mm version upgrades your push force from 3927 N to 6136 N at 0.5 MPa, whereas stepping up to the 160 mm bore yields 10053 N for the most demanding presses. Because this model features a 600 mm stroke, the extended rod is highly susceptible to bending under side loads; utilizing an external guide rail or a dedicated guided cylinder is strongly recommended to prevent premature rod-bearing wear.
As a dimensionally interchangeable ISO 15552 profile cylinder, it serves as a drop-in replacement for other ISO 15552 cylinders without relying on proprietary brand footprints. Note that the standard SAI does not secure loads upon air loss; for fail-safe holding, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) 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 SAI125AX600 FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
No, the standard SAI cylinder does not hold position without live pressure and the air cushions only decelerate the piston. For secure load holding, use the SAIL or BSAI locking variants.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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