Airtac SAI125 Standard Air Cylinder SAI125AX100S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX100S 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 SAI125AX100S
The AirTAC SAI125X100-S 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 its 100 mm stroke. The extruded aluminum barrel design ensures rigid alignment without tie-rods.
This specific configuration includes a SUS420J2 stainless steel piston rod (material code A) for enhanced corrosion resistance in humid environments. Equipped with a built-in magnet (-S), it seamlessly integrates with CMSE and DMSE sensor switches housed in the dual side grooves. The cylinder uses PT tapered port threads and adjustable air cushions at both ends to manage kinetic energy.
Airtac SAI125 Standard Air Cylinder SAI125AX100S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX100S |
|---|---|
| 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 SAI125AX100S
| 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 SAI125AX100S Is Used
Heavy-Duty Stamping
Generates 6136 N of push force at 0.5 MPa for deforming and stamping thick metal components in automated fabrication lines.
Injection Mold Clamping
Provides the rigid, high-force clamping required to secure heavy injection molds during processing, utilizing its robust 125 mm profile barrel.
Pallet Stopping
Acts as a high-capacity end-stop for heavy pallets on conveyor systems, safely absorbing kinetic energy using its adjustable end cushions.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX100S the Right Cylinder?
Selecting this 125 mm bore over the smaller 100 mm variant doubles your 0.5 MPa push output from 3927 N to 6136 N, providing the necessary thrust for demanding mold handling. If your application requires less force, stepping down to the 80 mm bore yields 2513 N while saving valuable machine space.
Because the standard SAI lacks a holding mechanism, it cannot retain a load if air pressure drops; the piston will drift. For vertical loads requiring fail-safe locking, consider the SAIL variant with an air-released lock or the BSAI clamp-lock cylinder. To mount this unit as a direct dimensional replacement per ISO 15552, pair the 125 mm bore, 100 mm stroke, and G1/2 port with FA flanges or a TC trunnion.
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 SAI125AX100S FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At a maximum 0.7 MPa operating pressure, the push force increases to 8590 N.
Yes, the SAI125X100-S is built to the ISO 15552 standard, making its mounting dimensions interchangeable with other ISO 15552 profile cylinders. It features a G1/2 port and accepts standard FA, CA, and TC mounting accessories.
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