Construction of electric motors in Modena
VMF's real strength lies in the manufacture of rotors and stators for electric motors in Modena, which combines with the company's vocation for the construction of industrial electric motors.
VMF is today one of the most important manufacturers of rotors and stators for electric motors in Modena and has always invested in research and development in order to combine craftsmanship for the product and motor development using advanced technology. This leads to advanced and high quality solutions for direct current (DC), brushless, permanent magnet, reluctance, asynchronous, special and hybrid electric motors.
What is an electric motor and how it is made?
An electric motor is an electrical machine with electrical input power and mechanical output power. Today, this product is of fundamental importance and is used in plant and machinery to enable movement. It is no coincidence that 75% of the electrical energy used in industry is used to power electric motors.
In addition, manufacturing of electric motors in Modena reaches various sectors, for agricultural machinery and transport (railways, subway and tram), and for domestic equipment.
Particular electric motors: inverters
The inverter or Variable Speed Drive is an electronic device powered by the mains and capable of varying the voltage and power supply of the electric motor. In this way, the inverter also varies the rotational speed of the motor. This device has led to important changes in industry automation, with the possibility of regulating the speed of induction motors with very low installation and operating costs.
VMF and the production of stator and rotor electric motors
Electric motor components manufactured by VMF consist of a fixed part, the stator, and a moving part or rotor. Both components generate magnetic fluxes (stator and rotor magnetic fluxes), which generate a pair of forces that cause the rotor’s movement which creates the shaft’s rotation.
The stator is the fixed part, and is home to the windings known as inductors. The windings are made from enameled copper wire and are housed in the slots specially cut in the stator.
The rotor in electric motors is the rotating part. The type of rotor changes depending on the type of electric motor (squirrel cage, permanent magnet or wound).
Other electric motors: the synchronous and asynchronous motor
Among the various types of electric motor are the synchronous and asynchronous electric motor. In the former case, the rotational frequency of the rotor is synchronised with the frequency of the rotating magnetic field and the frequency of the supply voltage.
The asynchronous motor, on the other hand, is a type of alternate current electric motor in which the frequency of rotation of the rotor is not the same as the frequency of the supply voltage or it is not 'synchronous' with it; this is why it differs from synchronous motors.
VMF: the ideal partner for electric motors in Modena
VMF manufactures rotors and stators for all types of electric motors and takes care of all the processing stages from design to the creation of ad hoc prototyping, and then makes them available to its partners for industrial production. The company's success is linked to the internalization of the manufacturing stages of rotors and stators for electric motors in Modena and the company produces dies and tooling for the creation of the motor inhouse.
This provides us with great flexibility in production batches and delivery times, manufacturing rotors and stators based on specific customer requirements.