Airtac SAI125 Standard Air Cylinder SAI125X195S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X195S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 195mm 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
- Stroke195 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X195S
The AirTAC SAI125X195-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation, delivering a substantial push force of 8590 N at 0.5 MPa. Its 195 mm stroke provides ample extension for substantial workpiece manipulation, positioning, and heavy lifting tasks. The extruded aluminum barrel design omits tie-rods, creating a clean exterior that resists mechanical fouling.
This specific configuration includes a standard magnet (-S) for seamless integration with CMSE and DMSE reed switches, which mount directly into the dual-sided sensor grooves. It utilizes a standard carbon steel piston rod and features tapered PT port threads, ensuring robust, leak-free pneumatic connections in demanding industrial environments.
Airtac SAI125 Standard Air Cylinder SAI125X195S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X195S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 195 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 SAI125X195S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×195 | 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 SAI125X195S Is Used
Heavy Stamping Press
Provides the high clamping force required to hold thick metal sheets firmly in place during aggressive stamping and punching operations.
Automotive Assembly Jig
Extends 195 mm to position heavy chassis components on the assembly line, using the integrated magnet for precise end-of-stroke confirmation.
Pallet Divertor
Pushes fully loaded pallets weighing several hundred kilograms onto secondary processing lines, utilizing the 8590 N thrust at 0.5 MPa.
Is the Airtac SAI125 Standard Air Cylinder SAI125X195S the Right Cylinder?
Selecting this 125 mm bore is ideal when a 100 mm bore (providing 5497 N push at 0.5 MPa) lacks the necessary thrust for heavy payloads, but stepping up to a 160 mm bore (14074 N) would be excessive and consume too much space. The 195 mm stroke offers a balanced mid-range extension that avoids the excessive rod-bearing bending moments seen in longer strokes, though maintaining proper rod alignment is still recommended.
Because the standard SAI125X195-S relies solely on pneumatic pressure for movement, it will drift if air pressure is lost or the valve is centered. If your application demands fail-safe load holding without live pressure, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock. For a direct replacement, match the 125 mm bore, 195 mm stroke, G1/2 port, and appropriate mounting accessory like a TC trunnion or FA flange.
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 SAI125X195S FAQ
At a standard operating pressure of 0.5 MPa, this 125 mm bore cylinder generates 8590 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 11045 N.
Yes, the SAI125X195-S is dimensionally interchangeable per ISO 15552 standards. You can drop it in as a replacement for other ISO 15552 profile cylinders with a 125 mm bore and 195 mm stroke, provided your mounting interface and G1/2 port match.
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