Airtac SAI125 Standard Air Cylinder SAI125AX290
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX290 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 290mm 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
- Stroke290 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX290
The AirTAC SAI125X290 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. It delivers a substantial push force of 6136 N and a pull force of 5734 N at 0.5 MPa, making it well-suited for high-thrust actuation over its 290 mm stroke. The extruded aluminum barrel design integrates sensor grooves on both sides for flexible switch placement.
Built to handle demanding environments, this specific configuration features a SUS420J2 stainless steel rod for superior corrosion resistance and PT tapered port threads. The piston travels at speeds up to 500 mm/s, while adjustable air cushions at both ends ensure smooth deceleration of heavy loads at stroke extremes.
Airtac SAI125 Standard Air Cylinder SAI125AX290 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX290 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 290 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 SAI125AX290
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×290 | 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 SAI125AX290 Is Used
Heavy Stamping
Provides the 6136 N force at 0.5 MPa required to actuate large mechanical presses and form robust metal components.
Injection Molding Extraction
Utilizes the 290 mm stroke to reach deep into molds and extract large fabricated plastic parts safely.
Pallet Diversion
Shifts heavy loaded pallets across high-capacity conveyor lines where substantial side-load resistance is managed by external guides.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX290 the Right Cylinder?
Selecting this 125 mm bore cylinder is ideal when an application requires significantly more thrust than a 100 mm bore can provide (which offers 3927 N push at 0.5 MPa), but does not yet demand the massive 10053 N output of the 160 mm version. For this 290 mm stroke, the ISO 15552 mounting interface allows seamless physical interchangeability with other standard profile cylinders using PT ports and standard mounting accessories like TC trunnions or CA clevises.
Because the stroke is 290 mm, the extended rod is subject to bending under side loads. To prevent premature seal wear and rod-bearing failure, use external guide rails or a fully guided cylinder assembly. Furthermore, if the machinery loses air pressure, this standard SAI cylinder cannot hold a suspended load; integrate an external rod lock or select the SAIL pneumatic lock variant for fail-safe holding.
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 SAI125AX290 FAQ
At a standard 0.5 MPa operating pressure, the SAI125X290 generates a push force of 6136 N and a pull force of 5734 N. If pressure is increased to 0.7 MPa, the push force reaches 8590 N.
Yes, the SAI125X290 features a standardized ISO 15552 mounting interface and PT tapered ports, making it dimensionally interchangeable with other ISO 15552 profile cylinders using standard FA flanges or LB foot mounts.
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