You have some choices when it comes to determining which motor you will need for whatever application or project you are implementing, and your choice will depend on a variety of factors. Voitto Digital Solar has a wide variety of motor types to fit a wide range of needs. Some of the issues you will need to consider for your motor are cost, amount of power you will need and how long you need it to last. If you have a project or application where you will only need a motor for short term use, you may prefer a cheaper one that may wear out more quickly. If your job requires a motor as long as possible, you will probably want to consider a BLDC motor, for reasons which will mention below.
The Brushless DC (BLDC) motor is the ideal choice for applications that require high reliability, high efficiency, and high power-to-volume ratio. Generally speaking, a BLDC motor is considered to be a high performance motor that is capable of providing large amounts of torque over a vast speed range. BLDC motors are a derivative of the most commonly used DC motor, the brushed DC motor, and they share the same torque and speed performance curve characteristics. The major difference between the two is the use of brushes. BLDC motors do not have brushes (hence the name “brushless DC”) and must be electronically commutated.
Commutation is the act of changing the motor phase currents at the appropriate times to produce rotational torque. In a brush DC motor, the motor assembly contains a physical commutator which is moved by means of actual brushes in order to move the rotor. With a BLDC motor, electrical current powers a permanent magnet that causes the motor to move, so no physical commutator is necessary.
A BLDC motor is highly reliable since it does not have any brushes to wear out and replace. When operated in rated conditions, the life expectancy is over 10,000 hours. For long term applications, this can be a tremendous benefit. Whenever a motor breaks down or needs to be replaced, your project, or part of it, must be shut down. This costs you time and money, perhaps a great deal depending on how long it takes to replace the worn part or parts and get the application started again. Although a BLDC motor may cost more than a brushless motor, it will often more than pay for itself in the amount of work time saved.