Airtac SAI125 Standard Air Cylinder SAI125BX600S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125BX600S 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 SAI125BX600S
The AirTAC SAI125X600-S is a double-acting ISO 15552 profile cylinder built for heavy-duty automation. It delivers a robust 6136 N push force at 0.5 MPa, scaling up to 8590 N at 0.7 MPa. The 600 mm stroke provides ample extension for large-scale material handling tasks.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance in harsh environments. Equipped with a magnet (-S), it seamlessly integrates with CMSE and DMSE reed switches via the dual sensor grooves on the extruded aluminum barrel. The PT tapered ports ensure a reliable, leak-free pneumatic connection.
Airtac SAI125 Standard Air Cylinder SAI125BX600S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125BX600S |
|---|---|
| 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 SAI125BX600S
| 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 SAI125BX600S Is Used
Heavy Stamping
Generates the 8590 N force at 0.7 MPa needed to actuate large metal forming and stamping presses.
Pallet Transfer
Uses the 600 mm stroke to push heavy pallets cleanly across wide conveyor junctions.
Automotive Welding
The SUS304 rod withstands weld spatter and shop-floor coolants while positioning large chassis sub-assemblies.
Is the Airtac SAI125 Standard Air Cylinder SAI125BX600S the Right Cylinder?
Selecting this 125 mm bore over the 100 mm option upgrades your push force from 3927 N to 6136 N at 0.5 MPa, while stepping up from the 160 mm bore avoids the 10053 N overkill if your load sits comfortably in the 6 kN range. Operating speed is capped at 30-500 mm/s for larger bores.
At 600 mm of extension, the unsupported rod is highly susceptible to bending under side loads. To prevent premature seal failure and rod-bearing wear, mount external linear guides or specify a guided cylinder. Because the standard SAI lacks a locking mechanism, the piston will drift if air pressure is lost; for suspended loads requiring fail-safe holding, deploy the SAIL variant or an external rod lock. As a true ISO 15552 profile cylinder, it drops directly into existing PT port, 125 mm bore, and standard mounting footprints without requiring bracket modifications.
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 SAI125BX600S FAQ
It provides a push force of 6136 N at 0.5 MPa, 8590 N at 0.7 MPa, and reaches 11045 N at 0.9 MPa.
Yes, the SAI125X600-S is dimensionally interchangeable per ISO 15552, matching the standard 125 mm mounting interface, G1/2 ports, and M27x2 rod thread for direct drop-in replacement.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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