Airtac SAI125 Standard Air Cylinder SAI125X200S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X200S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 200mm 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
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125X200S
The AirTAC SAI125X200-S is a double-acting ISO 15552 profile cylinder featuring a 125mm bore and 200mm stroke. It delivers a robust 6136 N of push force at 0.5 MPa, scaling up to 11045 N at 0.9 MPa, making it well-suited for heavy-duty industrial actuation.
Equipped with a magnet (-S), this model supports CMSE and DMSE sensor switches via the integrated grooves on both sides of the extruded aluminum barrel. It features a standard carbon steel piston rod and utilizes PT tapered port threads. For applications requiring position holding without air pressure, consider the SAIL or BSAI variants.
Airtac SAI125 Standard Air Cylinder SAI125X200S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X200S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 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 SAI125X200S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×200 | 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 SAI125X200S Is Used
Heavy Stamping
Provides the high thrust necessary for metal forming and heavy stamping presses requiring substantial impact force.
Pallet Diversion
Actuates large pallet stops and heavy diverters on high-capacity conveyor lines handling bulky materials.
Automotive Handling
Drives robust clamping and lifting fixtures for automotive chassis components during assembly operations.
Is the Airtac SAI125 Standard Air Cylinder SAI125X200S the Right Cylinder?
Select this 125mm bore when 100mm falls short—offering 3927 N at 0.5 MPa compared to this model's 6136 N. If your application requires less force, stepping down reduces air consumption. At 200mm stroke, side-load risks are moderate, but ensure the load is guided externally if binding is a concern.
As a dimensionally interchangeable ISO 15552 cylinder, it serves as a drop-in replacement for other standard profile cylinders. Matching components include the PT G1/2 port, M27x2 rod thread, and standard mounting accessories like FA flanges or TC trunnions. Note that air cushions only decelerate the piston near stroke end and do not lock the load when pressure is removed.
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 SAI125X200S FAQ
At 0.5 MPa, it provides 6136 N of push force and 5734 N of pull force. At 0.9 MPa, the push force increases to 11045 N.
Yes, it is a profile barrel cylinder built to ISO 15552 dimensions, making it a drop-in replacement for other ISO 15552 cylinders with matching 125mm bore and G1/2 ports.
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