Airtac SAI125 Standard Air Cylinder SAI125BX260S
The AirTAC SAI125 Standard Air Cylinder SAI125BX260S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 260mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ125 mm
- Stroke260 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAI125 Standard Air Cylinder SAI125BX260S
The AirTAC SAI125X260-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a robust 8590 N push force at 0.5 MPa, this 125 mm bore actuator easily handles substantial payloads. The 260 mm stroke provides ample extension for indexing, clamping, and pressing tasks. As a genuine AirTAC component, it ensures reliable performance across demanding cycles.
This specific configuration features a SUS304 stainless steel rod (material code B) for superior corrosion resistance in harsh environments. The -S suffix indicates an integrated magnet, allowing seamless position detection with CMSE or DMSE series switches fitted into the dual sensor grooves machined into the extruded aluminum barrel. It also utilizes a PT tapered port thread.
Airtac SAI125 Standard Air Cylinder SAI125BX260S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125BX260S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 260 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 SAI125BX260S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×260 | 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 SAI125BX260S Is Used
Heavy-Duty Pressing
Generates 11045 N of force at 0.9 MPa, ideal for seating bearings, stamping components, and heavy assembly operations.
Pallet Indexing
The 260 mm stroke provides the exact extension needed to push or lift heavy pallets along high-throughput material handling lines.
Automotive Clamping
SUS304 stainless steel rod withstands harsh machining environments, securing heavy automotive chassis components during welding.
Is the Airtac SAI125 Standard Air Cylinder SAI125BX260S the Right Cylinder?
Selecting this 125 mm bore over the smaller 100 mm variant doubles your available thrust, stepping up from 5497 N to 8590 N at 0.7 MPa. If your application requires even less force, the 80 mm bore offers 3518 N at the same pressure. Because this model features a 260 mm stroke, which is over 300 mm when considering standard increments, you must account for potential rod-bearing bending under side loads. Implement external guide rails or choose a fully guided cylinder to prevent premature wear.
The SAI125X260-S is dimensionally interchangeable per ISO 15552, serving as a direct replacement for other standard profile cylinders. It operates at speeds of 30-500 mm/s. Remember that a standard double-acting cylinder cannot hold a load if air pressure is lost; for suspended loads requiring fail-safe holding, specify the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variant instead.
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 SAI125BX260S FAQ
At a standard 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N.
Yes, the SAI125X260-S is a true ISO 15552 profile cylinder. Its standardized mounting interface and physical dimensions make it a direct replacement for other ISO 15552 profile cylinders, though you should verify your port and rod thread requirements.
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