Airtac SAI125 Standard Air Cylinder SAI125X600
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X600 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 SAI125X600
The AirTAC SAI125X600 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It delivers a substantial push force of 8590 N at 0.7 MPa, making it well-suited for moving large masses across its 600 mm stroke. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that simplifies the mounting of accessories.
This configuration features a standard carbon steel piston rod and PT tapered port threads. Because it lacks a factory magnet, position sensing requires external switches. For applications involving extreme thermal exposure, the cylinder can be specified with Viton (H) seals to maintain integrity at elevated temperatures.
Airtac SAI125 Standard Air Cylinder SAI125X600 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X600 |
|---|---|
| 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 SAI125X600
| 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 SAI125X600 Is Used
Heavy Stamping Presses
Provides the robust 8590 N thrust required to actuate large forming dies and heavy-duty stamping assemblies across the 600 mm travel.
Pallet Diverters
Shifts fully loaded pallets on high-throughput packaging lines, utilizing the extended stroke to re-route heavy materials efficiently.
Large Assembly Fixtures
Clamps bulky automotive or aerospace components securely during machining, taking advantage of the rigid 125 mm bore profile.
Is the Airtac SAI125 Standard Air Cylinder SAI125X600 the Right Cylinder?
Selecting this 125 mm bore model is ideal when 100 mm cylinders (providing 5497 N push at 0.7 MPa) lack the necessary thrust for high-inertia loads. The 600 mm stroke provides ample travel, but at this length the extended rod is highly susceptible to bending under side loads. Implementing an external guide rail or choosing a fully guided cylinder is strongly recommended to prevent premature rod-bearing wear.
This unit serves as a direct dimensional drop-in replacement for other ISO 15552 cylinders, matching standard mounting interfaces like the TC trunnion or CA clevis. Note that standard SAI cylinders do not hold position upon loss of air pressure; if fall-prevention is required for elevated loads, specify the SAIL pneumatic lock variant. Porting is G1/2, and a magnet (-S) must be added if internal CMSE or DMSE sensors are needed.
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 SAI125X600 FAQ
At an operating pressure of 0.7 MPa, this 125 mm bore cylinder generates a push force of 8590 N and a pull force of 5734 N. At 0.5 MPa, the push force is 6136 N.
Yes, the SAI125X600 is dimensionally interchangeable per ISO 15552. You can swap it directly with other ISO 15552 profile cylinders using existing FA flanges or LB foot mounts, provided you accommodate the G1/2 port.
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