Special Motor Execution — Frame 280, 90 kW, Double Flange

This project involved the manufacture of a special motor in Frame 280, rated at 90 kW / 4 poles, built for continuous duty (S1) and cooled according to IC411.

The motor was produced with a double-flange mechanical execution, a configuration requiring particular attention during both design and manufacturing. In cases like this, the work extends beyond the electrical characteristics of the machine and includes the accurate definition of mounting geometry, interfaces, tolerances, alignment, and final assembly.

Technical Data

• Frame size: 280
• Power: 90 kW
• Poles: 4
• Duty: S1
• Cooling: IC411
• Mechanical execution: Double flange

Double-Flange Configuration

The key feature of this motor was its double-flange construction.

Configurations of this type are typically associated with installations where the motor must match a specific mechanical arrangement and integrate precisely into the surrounding equipment. This places greater emphasis on dimensional accuracy and on the practical details of assembly and fit.

In projects of this kind, the motor is not approached as a standard catalogue item, but as a machine built to suit a particular requirement.

Design, Manufacturing and Testing

As with every special execution, the project passed through the full process of design, manufacturing, and testing before delivery.

Special motors often demand a closer relationship between design and production, since even relatively compact machines may involve non-standard mechanical details that have to be resolved carefully in order to ensure correct installation and reliable operation.

A special motor for a special configuration.