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Eddy-Current Drives & Controllers
Eddy-Current Drives & Controllers

DSI/Dynamatic®
At Carotron, we care about offering the safest and most efficient equipment to help operate industrial machinery. That’s why we carry a product line of eddy current controllers and drives along with our large selection of motor control products, parts and accessories. Having a reliable eddy current drive improves the performance of your motor and can have a positive impact on your process as a whole, in terms of both safety and finances.
Keep reading to learn more about our eddy current drives and how they can benefit you!
Keep reading to learn more about our eddy current drives and how they can benefit you!
What Is an Eddy Current Drive?
An eddy current drive is a device that machine operators use to control the torque and speed of a machine’s motor. The drive has a drum and an input shaft that allow it to pair with an AC motor, and then the motor rotates the drum at a consistent speed. Meanwhile, a magnetic rotor within the drum generates an excitation current as its poles are magnetized by a DC current.After the magnetic rotor develops the excitation current, this current causes a magnetic flux that the drum must pass through in order to generate eddy currents. This is the mechanism that controls the torque, which continues to help power the motor while the magnetic rotor and drum work in sync.
Eddy Current Drive Benefits
One of the main benefits of working with an eddy current drive over other drives is their high level of energy efficiency and the ability to deliver even if the motor is operating at little to no speed. Due to the fact that they can generate torque for loads at low speeds, they are ideal for machines that only need to run for short periods of time.In addition, this device can save you money thanks to its durability and capacity to serve you and your equipment for many years. You can count on the eddy current driver to have a long lifespan, which means it’s the perfect long-term solution and will keep your machinery operating at its best.
Some of the other benefits you can rely on include easy repairs, convenient size and low noise levels.
What Are the Applications of Eddy Current Drives?
Eddy current controllers and drives have applications in a wide variety of industries, as they are mainly used in small and large torque loads for different types of machinery. Operators may use them to improve the functionality of automobiles, conveyors, stamping presses and more.Industries and businesses that can benefit from eddy current drives include but are not limited to:
- Textiles
- Chemical
- Plastic
- Wire
- Water
Eddy Current Drives FAQs
1What is an eddy current drive?
An eddy current drive, also referred to as a magnetic drive or eddy current clutch, is an electromechanical variable speed drive. Rather than a direct mechanical link, it uses a magnetic field to adjust a machine's torque and speed without affecting the motor's speed.
2Do eddy current drives change the speed of the motor?
No, eddy current drives do not change the speed of the motor itself. The motor continues to run at a consistent speed, and the drive acts as an adjustable magnetic clutch that controls the final output speed and torque without changing the motor speed.
3What are the advantages of using an eddy current drive?
Eddy current drives offer several advantages due to their unique electromechanical design. They provide reliability, durability and built-in equipment protection. These drives have a long lifespan and can perform in hot, harsh or dusty environments. The magnetic link acts as a shock absorber, which protects your motor if the machine gets jammed or overloaded. There are fewer components in an eddy current drive that require replacement compared to some mechanical speed-control systems.
4In what industries do you find eddy current drives?
Because of their durability, protective qualities, and variable-speed operation, eddy current drives are found in a range of demanding industrial and manufacturing applications.
Key industries include water and wastewater treatment for controlling large pumps and power generation plants for managing fans and boiler systems. In the manufacturing and processing sectors, they are used to run machinery like conveyors, stamping presses and mixers, especially in the plastics and textile industries. They are also common in heavy industries like metals and mining in equipment such as crushers, grinding mills and rolling mills.
Key industries include water and wastewater treatment for controlling large pumps and power generation plants for managing fans and boiler systems. In the manufacturing and processing sectors, they are used to run machinery like conveyors, stamping presses and mixers, especially in the plastics and textile industries. They are also common in heavy industries like metals and mining in equipment such as crushers, grinding mills and rolling mills.
Contact Carotron
We know it can be challenging to find the right piece of equipment for your motor. That’s why we’re available to help you locate the exact product that will fit your requirements! Our team is happy to work with you and will deliver quick results 100% of the time. With decades of experience and a commitment to your satisfaction, we’ll put our all into your every purchase.Contact Carotron for more information or assistance finding a product!
