Airtac SAI125 Standard Air Cylinder SAI125AX100
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 100mm 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
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX100
The AirTAC SAI125X100 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It provides a robust push force of 6136 N and a pull force of 5734 N at 0.5 MPa, making it well-suited for high-impact pressing and clamping tasks within a compact 100 mm stroke. The extruded aluminum barrel design eliminates exposed tie rods, ensuring a clean profile that resists debris accumulation.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid or mildly chemically washed environments. It utilizes PT tapered port threads, and because it lacks the -S magnet option, it operates without integrated sensor grooves being populated for reed switches. For applications requiring position holding without continuous air pressure, the SAIL variant offers an integrated locking mechanism.
Airtac SAI125 Standard Air Cylinder SAI125AX100 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 100 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 SAI125AX100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×100 | 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 SAI125AX100 Is Used
Heavy-Duty Stamping
Provides the 6136 N push force required to form and stamp thick-gauge metal components securely in automated press lines.
Injection Mold Clamping
Holds heavy injection mold halves together firmly during the material injection phase, utilizing its robust 125 mm profile barrel.
Pallet Stopping
Acts as a high-force end-stop for heavy loaded pallets on roller conveyors, absorbing kinetic energy via its adjustable cushions.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX100 the Right Cylinder?
Select this 125 mm bore when a 100 mm stroke provides adequate travel but your application demands substantially more thrust than a 100 mm bore can offer. A 100 mm cylinder generates 3927 N of push force at 0.5 MPa, whereas this SAI125X100 steps up to 6136 N. If your project requires less force and a faster cycle, stepping down to the 100 mm bore is advisable. Conversely, for extreme loads up to 10053 N, the 160 mm bore is the next logical upgrade.
Because this is a standard double-acting cylinder, the adjustable air cushions at both ends only decelerate the piston near the stroke endpoints; they do not function as a braking mechanism. If the machinery loses air pressure, the rod will drift and drop. For safety-critical vertical loads that must remain stationary during an air loss event, specify the SAIL locking variant or integrate an external pilot-operated check valve. Replacement mounting is straightforward via the ISO 15552 interface, utilizing accessories like the FA flange or TC trunnion with PT porting.
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 SAI125AX100 FAQ
At 0.5 MPa operating pressure, this cylinder provides 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 SAI125X100 is dimensionally interchangeable per ISO 15552. You can use it as a drop-in replacement for other ISO 15552 profile cylinders, matching the exact bore, stroke, and PT port dimensions.
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