Breaks are something that saves use in a lot of situation, whether is in our cars, machines in the industry they have a beneficial and crucial ability, saving us money and sometimes our lives. Nevertheless, there are a lot of different types of brakes, and each one of them has a specific function. Without a doubt, electromagnetic brakes are surely the most used type of breaks, due to the fact they work electrically and they activate the torque in a mechanical way. Generally, they are used for vehicles that have difficulty stopping, as an additional brake to the regular brake system. For that reason, in this article, we will go through the four most used types of electromagnetic brakes.
Electromagnetic “Power Off” Brakes
The electromagnetic brakes are activated and used to hold the position of the load when the electrical power has been cut off or lost. Because they are usually used as an additional measure, the power off brakes is also know as fail safe brakes. They are installed on or close to the electrical motor, and are usually used in a servo motor brakes, robotics or holding brakes. To have increased brake torque, designers added multiple disks that will increase the functionality of the brake. In essence, there are two types of “power off” brakes: spring applied and permanent magnet one. They differ from each other, but both of them work where there is no power.
Electromagnetic Particle Brakes
This brake is a unique type of brakes because they copy a design from other brakes and have a great operating range of the torque. The particle brakes have a linear torque to voltage ratio, yet the magnetic particle brakes, the torque possess accurate control. Because of this ability, they can find a use in a tension-control task. Additionally, they are highly responsive, hence making it efficient in high cycled tasks.
Hysteresis Power Brakes
This type of EM brakes has a wide spectre of range and specific torque repeatability. This means the brakes can be auto-controlled, which makes the perfect for testing ranges and application where a torque that has various numbers is needed. When you compare to the other brakes, the drag torque has lower numbers, the hysteresis power offers a wide torque range so it can test applications and other tasks.
Multiple Disc Brakes
Lastly, but not least is the Multiple disc brakes. When there is a need of torque in a tight space, this multi-disk brake is a perfect choice. These brakes are used whether they are dry or wet and are the perfect choice when running a multi-speed gear box tasks, and task that has heavy machines or off-road gear.
When extremely high torque within a small space is needed, the multiple disc brakes are an obvious choice. The multiple disc brakes can be used either dry or wet, so they are suitable for running in multi-speed gearbox applications, applications that involve machine tools and in off-road equipment.