Airtac SAI125 Standard Air Cylinder SAI125X100
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X100 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 SAI125X100
The AirTAC SAI125X100 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 6136 N push force at 0.5 MPa, this 125 mm bore unit easily handles substantial loads over its 100 mm stroke. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that simplifies mounting and sensor placement.
This specific configuration features a standard carbon steel piston rod and PT tapered port threads. Because a magnet is not specified, it operates without integrated position sensing. For applications requiring end-of-stroke deceleration of heavy masses, the adjustable air cushions at both ends are essential, as they absorb kinetic energy without acting as a physical lock.
Airtac SAI125 Standard Air Cylinder SAI125X100 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X100 |
|---|---|
| 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 SAI125X100
| 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 SAI125X100 Is Used
Heavy Stamping
Provides the 6136 N push force required to actuate large mechanical stamping presses and forming dies.
Pallet Diverting
Shifts heavy loaded pallets on assembly lines where high side-load resistance and robust thrust are mandatory.
Injection Molding
Drives large mold core pulls and heavy clamping fixtures that demand reliable, high-force linear motion.
Is the Airtac SAI125 Standard Air Cylinder SAI125X100 the Right Cylinder?
Selecting this 125 mm bore cylinder is ideal when 100 mm of travel is sufficient to move masses requiring up to 6136 N of push force at 0.5 MPa. If your application demands less force, stepping down to an 80 mm bore yields 2513 N, saving physical space and air consumption. Conversely, if higher thrust is needed, the 160 mm bore provides 10053 N.
This model uses a G1/2 port and features an adjustable air cushion stroke of 40 mm to tame heavy impact loads. Remember that standard double-acting cylinders drift when air pressure is removed; if your system must hold a load safely during an exhaust or power loss event, integrate the SAIL variant or an external pilot-operated check valve. Being a true ISO 15552 profile cylinder, it serves as a drop-in replacement for other ISO 15552 cylinders without requiring custom brackets.
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 SAI125X100 FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. If operating pressure increases to 0.7 MPa, the push force rises to 8590 N.
Yes. The SAI125X100 is dimensionally interchangeable per ISO 15552. You can drop it into existing mounts using standard accessories like FA flanges or TC trunnions, matching the exact bore and stroke.
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