Electric Motors

Industrial electric motors for reliable and efficient drive

Electric motors are one of the key components in modern industry, supplying mechanical energy for virtually all types of machines, equipment and production lines. Due to their exceptionally high efficiency, reliability and environmental benefits, they are among the most energy-efficient drive systems available. Electric motors are reversible, meaning they can not only convert electrical energy into mechanical energy but also operate as generators, converting mechanical energy back into electrical power. Because of their robustness, precision and long service life, they are indispensable across all industrial sectors—from process production and automation to logistics, energy systems and material processing.

How electric motors work

The basic components of every electric motor are the stator and the rotor.
The stator contains multi-phase windings that create a rotating electromagnetic field. This field induces rotation of the rotor, which always turns slightly slower than the magnetic field of the stator. This difference is called slip, and slip is a key factor affecting motor efficiency—the smaller the slip, the better the motor’s energy performance.
Electric motors are designed to withstand short-term overloads, which is essential during start-up loads, sudden torque changes or demanding operating conditions.

Types of electric motors by supply voltage

We offer electric motors differentiated by supply voltage, allowing optimal selection for different systems and drive requirements.

The most common versions include:

• Single-phase electric motors – for simple applications, domestic use, fans, smaller machines and devices operating on single-phase power supply.
• Three-phase electric motors – the standard industrial choice, providing high power, stability, precision and reliable operation.
• IE3 electric motors – high-efficiency motors compliant with international efficiency standards, reducing energy consumption and long-term operating costs.

Designs based on number of poles

The rotational speed of an electric motor depends on the number of stator poles.
Common motor configurations include:

• 2-pole motors – high rotational speeds
• 4-pole motors – balanced speed for most industrial processes
• 6-pole motors – lower speed, higher torque
• 8-pole motors – slow-speed drives for special applications

We also offer two-speed motors with dual polarity, allowing operation at two speed levels—essential in processes requiring speed adjustment without a dedicated controller.

Housing versions and mounting options

Electric motors can be divided according to housing type:

• B3 – foot-mounted motor
• B5 – flange-mounted motor
• B14 – compact flange motor

The housing version determines the mounting method, making it important to choose the correct design based on the machine or gearbox. In many applications, electric motors are combined with gearboxes, enabling lower speeds, higher torque and optimal mechanical adaptation to the process.

Extended industrial range of electric motors

We offer a very wide selection of electric motors and complete drive equipment, including:

• single-phase electric motors
• three-phase electric motors
• frequency inverters – for speed control and soft starting
• motor mounts
• gearbox accessories
• two-speed electric motors
• electric motors with electromagnetic brakes
• Ex-certified motors for hazardous areas
• electric motors with integrated frequency inverters
• motors with protection ratings IP54, IP55 and, on request, IP56, IP65, IP66
• motors for duty cycles S1–S8

We collaborate with renowned manufacturers such as Motovario and Mosca, recognised for reliability and industrial-grade quality.

Frequency inverters – the key to perfect speed control

Frequency inverters are one of the most efficient ways to improve energy efficiency and adapt electric motor performance. They are used for:

• speed regulation
• reducing energy consumption
• soft motor starting
• overload protection
• increasing productivity of production lines

An electric motor with an integrated frequency inverter is an excellent solution wherever precise speed control, high efficiency and quiet operation are required.

Electric motors as the driving force of industry

Electric motors are used in virtually every industrial segment, with the most common applications including:

• conveyor systems
• pumps, compressors and fans
• hoists, lifting systems and manipulators
• wood- and metal-processing machines
• production lines
• packaging equipment
• conveyor chains
• process industry
• wastewater treatment plants
• HVAC and ventilation systems

Their adaptability, robustness and energy efficiency are the reasons why electric motors remain a fundamental technology of modern industrial automation.

Why choose electric motors from M&M Intercom

We offer a complete range of drive solutions, including electric motors, frequency inverters, gearbox accessories and all mounting components. Our focus is on:

• high-quality materials
• long service life
• universal industrial compatibility
• compliance with international standards
• expert technical support
• fast delivery and stable stock levels

With the right choice of electric motor, you ensure stable operation, higher productivity, lower energy consumption and fewer production interruptions.

Professional consulting and technical assistance

Each industrial application requires a specific drive approach. At M&M Intercom we provide professional technical support, including:

• selecting the correct motor based on load, speed and duty cycle
• assistance with dimensioning
• advice on IP protection levels
• guidance on combining electric motors with gearboxes
• technical support for installation and commissioning
• supply of specialised solutions (e.g., Ex versions)

With extensive experience and understanding of industrial processes, we ensure the selected electric motor is optimal, efficient and fully suited to the user’s requirements.

 

10 Most Frequently Asked Questions (FAQ)

1. What are electric motors and why are they so important in industry?
Electric motors convert electrical energy into mechanical energy and are essential for driving machines, pumps, fans, conveyor systems and production lines. Due to their efficiency and reliability, they are the foundation of modern industrial automation.
2. What is the difference between single-phase and three-phase electric motors?
Single-phase motors are suitable for basic applications powered by a single-phase network. Three-phase motors are the industrial standard, offering higher power, stability and efficiency under heavy loads.
3. What does the number of poles mean in an electric motor?
The number of poles determines the maximum motor speed.
2-pole motors reach higher speeds, 4-pole motors are the industrial standard, while 6- and 8-pole motors provide lower speeds with higher torque. Two-speed motors include dual polarity.
4. What is the difference between B3, B5 and B14 mounting types?
B3 has foot mounting for floor installation, B5 has a large flange for precise mechanical integration, and B14 has a compact flange for space-limited applications.
5. When is a brake motor used?
Brake motors are used where the motor must stop rotation quickly and safely, such as in hoists, lifting devices, saws, manipulators or positioning systems.
6. What is an IE3 electric motor?
IE3 motors are high-efficiency models with lower energy consumption, reduced heating and longer service life. They are used where energy costs are significant or efficiency standards are mandatory.
7. Can an electric motor with a frequency inverter run at different speeds?
Yes. A frequency inverter enables precise speed regulation, soft starting, reduced energy use and overload protection—ideal for applications with variable speeds.
8. What does IP protection mean for electric motors?
IP54 and IP55 are common industrial protection levels, shielding against dust and water. Higher protection levels such as IP56, IP65 and IP66 are available for demanding or exposed environments.
9. Are electric motors available for hazardous (Ex) areas?
Yes. On request we supply Ex-certified motors compliant with ATEX requirements, suitable for explosive atmospheres such as chemical plants, energy production, pharmaceuticals and gas processing.
10. When is a two-speed electric motor recommended?
A two-speed motor is used where processes require two different speeds, such as in fans, compressors, mixers or machines operating in multiple load conditions.

E-mail: [email protected]
Tel.: +386 1 29 27 960