Airtac SAI125 Standard Air Cylinder SAI125X600H
The AirTAC Airtac SAI125 Standard Air Cylinder SAI125X600H 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 SAI125X600H
The AirTAC SAI125X600 is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation. Delivering a substantial push force of 8590 N at 0.7 MPa, this 125 mm bore actuator is built to move significant masses across its 600 mm stroke. Its extruded aluminum barrel omits tie rods, providing a rigid yet streamlined profile that drops directly into standardized ISO 15552 mounting footprints.
Configured for aggressive thermal environments, this specific unit utilizes high-temperature Viton (FKM) seals. While the standard SAI series operates from -20 to +70 C, specifying Viton expands the operating envelope to handle elevated ambient heat without degrading. The piston rod is fitted with a carbon steel construction for high tensile strength under high-cycle fatigue, and the barrel features dual sensor grooves ready for CMSE or DMSE switches when a magnet is added.
Airtac SAI125 Standard Air Cylinder SAI125X600H Technical Specifications
| Model | Airtac SAI125 Standard Air Cylinder SAI125X600H |
|---|---|
| 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 SAI125X600H
| 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 SAI125X600H Is Used
Heavy Stamping Presses
Provides the 8590 N thrust at 0.7 MPa required to actuate heavy-duty stamping and forming dies over a 600 mm deep draw distance.
Automotive Assembly Lifts
Lifts heavy chassis subframes or powertrain components on the line, where the high-temp Viton seals withstand proximity to curing ovens.
Pallet Diverters
Pushes fully loaded pallets laterally across high-throughput conveyor lines, utilizing the long 600 mm stroke to clear adjacent lanes.
Is the Airtac SAI125 Standard Air Cylinder SAI125X600H the Right Cylinder?
Selecting this 125 mm bore is appropriate when 100 mm cylinders (providing 5497 N push at 0.7 MPa) lack the necessary thrust for heavy payloads. If 600 mm of travel is excessive for your cycle time, stepping down to a 500 mm stroke optimizes air consumption. At 600 mm of travel, the extended rod is highly susceptible to bending under side loads; utilize external linear guides or a guided cylinder carriage to prevent premature rod-bearing wear.
This actuator features PT (tapered) port threads and accepts standard ISO 15552 mounting accessories like TC trunnion or LB foot brackets. Because it lacks a magnet (-S), position sensing requires external reed or solid-state switches. Note that standard air cushions only decelerate the piston at end-of-stroke; if the application requires holding a load vertically during a pressure loss, integrate an external pilot-operated check valve or specify a SAIL locking variant.
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 SAI125X600H FAQ
At an operating pressure of 0.7 MPa, the SAI125X600 generates a push force of 8590 N and a pull force of 5734 N. At 0.9 MPa, the push force increases to 11045 N.
Yes, the SAI125X600 is dimensionally interchangeable per ISO 15552. You can drop it into existing mounts using standard FA flanges or TC trunnions, provided your port and rod thread dimensions align.
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