Airtac SAI125 Standard Air Cylinder SAI125X1000S
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X1000S 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 SAI125X1000S
The AirTAC SAI125X1000-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty linear motion. It generates a substantial 6136 N of push force at 0.5 MPa and 8590 N at 0.7 MPa, making it well-suited for moving large masses over its extended 1000 mm stroke. The extruded aluminum barrel design omits tie-rods, providing a clean exterior that drops directly into standard ISO 15552 mounting interfaces.
Equipped with a magnetic piston (-S), this unit supports CMSE and DMSE sensor switches housed neatly within the dual side grooves. The standard carbon steel piston rod handles rigorous industrial cycling, while adjustable air cushions at both ends absorb end-of-stroke impact. Operating speed ranges from 30-500 mm/s, ensuring controlled actuation even under high inertia loads.
Airtac SAI125 Standard Air Cylinder SAI125X1000S Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X1000S |
|---|---|
| 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 SAI125X1000S
| 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 SAI125X1000S Is Used
Heavy Stamping Presses
Provides the 8590 N force at 0.7 MPa needed to actuate large forming dies and heavy-duty stamping assemblies over long distances.
Pallet Diverters
Shifts massive loaded pallets laterally across high-throughput conveyor lines, utilizing the full 1000 mm stroke for wide lane transitions.
Automated Assembly Lifts
Raises and lowers heavy chassis frames or structural components in automated automotive and heavy machinery assembly cells.
Is the Airtac SAI125 Standard Air Cylinder SAI125X1000S the Right Cylinder?
Selecting this 125 mm bore cylinder is appropriate when application thrust requirements exceed the 3927 N push force of the 100 mm bore at 0.5 MPa, but do not necessitate stepping up to the 160 mm class. Because this model features a 1000 mm stroke, the extended rod is highly susceptible to bending under side loads. You must incorporate external linear guides or use a guided cylinder carriage to prevent rod-bearing damage and premature seal wear.
This SAI variant uses PT tapered port threads and includes a magnet for position sensing. If your machinery requires the load to remain stationary during a complete loss of air pressure, do not rely on the standard air cushions, as they only decelerate the piston and cannot hold a load. For fail-safe holding, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock cylinder.
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 SAI125X1000S FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. If operating pressure is increased to 0.7 MPa, the push force rises to 8590 N.
Yes, the SAI125X1000-S is dimensionally interchangeable per ISO 15552. It serves as a drop-in replacement for other ISO 15552 profile cylinders, matching standard mounting dimensions and accessory footprints.
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