Airtac SAI125 Standard Air Cylinder SAI125AX1000
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125AX1000 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 1000mm 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
- Stroke1000 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAI125 Standard Air Cylinder SAI125AX1000
The AirTAC SAI125X1000 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty linear motion. It delivers a robust push force of 6136 N at 0.5 MPa, extending across a generous 1000 mm stroke to handle substantial workloads. This extruded aluminum barrel design omits tie-rods, providing a clean exterior that simplifies mounting and sensor placement.
Configured with a SUS420J2 stainless steel piston rod (material code A), this unit offers excellent resistance against corrosion and surface wear in demanding environments. Fluid supply connects via PT tapered ports, while adjustable air cushions at both ends absorb kinetic energy to protect machine components at stroke endpoints.
Airtac SAI125 Standard Air Cylinder SAI125AX1000 Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125AX1000 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 1000 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 SAI125AX1000
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×1000 | 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 SAI125AX1000 Is Used
Heavy Stamping
Provides the high thrust needed to actuate large mechanical stamping presses and form heavy-gauge metal components.
Automated Assembly
Drives massive payload transitions along 1000 mm strokes in automated automotive assembly lines and heavy machinery.
Pallet Transfer
Indexes heavy loaded pallets between manufacturing stations, utilizing adjustable cushions to stop loads smoothly.
Is the Airtac SAI125 Standard Air Cylinder SAI125AX1000 the Right Cylinder?
Selecting this 125 mm bore over the 100 mm variant doubles your available thrust, jumping from 3927 N to 6136 N at 0.5 MPa. If your application requires even less force to save space, the 80 mm bore provides 2513 N. Because this model features a 1000 mm stroke, the extended piston rod is highly susceptible to bending under side loads; always incorporate external linear guides or use a guided cylinder to prevent premature rod-bearing failure.
As a true ISO 15552 profile cylinder, it serves as a drop-in replacement for any standard 125 mm bore ISO 15552 unit with matching mounting dimensions. Note that a standard SAI does not hold position when air pressure is removed; for dead-end holding, specify the SAIL variant or add an external pilot check valve.
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 SAI125AX1000 FAQ
At 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 SAI125X1000 is dimensionally interchangeable per ISO 15552. You can use it as a drop-in replacement for other standard ISO 15552 profile cylinders with matching 125 mm bore and 1000 mm stroke specifications.
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