Compared with traditional brushed motors, how are the energy efficiency improvements of brushless motors reflected in multi-function polishing lithium electric angle grinders?

1. Reduced energy consumption
Since there is no friction loss between the carbon brush and the commutator, the brushless motor on the multi-function polishing lithium electric angle grinder can convert more electrical energy into mechanical energy, so the power consumption is relatively low. Generally speaking, the power consumption of brushless motors is usually only about one-third of that of brushed motors. This means that under the same working conditions, brushless motors can use electrical energy more efficiently and reduce energy consumption.

2. Improved efficiency
Brushless motors reduce friction loss and energy loss during operation, so they have higher efficiency. This allows the multi-function polishing brushless lithium electric angle grinder to maintain a high speed and stable power output in operations such as cutting, grinding and polishing, thereby improving work efficiency. For example, when cutting harder materials, brushless motors can maintain high speed and torque, and will not easily experience insufficient power.

3. Extended life
The service life of brushless motors is usually longer than that of brushed motors. Since there is no wear between the brush and the commutator, the life of the brushless motor can reach 7-10 years, while the life of the brushed motor is about 2-3 years. This means that the brushless motor can reduce the frequency and cost of replacing the motor during long-term use, and improve the cost-effectiveness of the tool.

4. Comprehensive energy efficiency performance
Combined with the specific product information of the multi-functional polishing brushless lithium electric angle grinder, the high efficiency of its brushless motor is not only reflected in the reduction of energy consumption and the improvement of efficiency, but also in the comprehensive energy efficiency performance of the whole machine. For example, the angle grinder adopts a high voltage of 21 volts and a large-capacity battery of 4.0 ampere hours, which can provide long-lasting endurance and stable power output. At the same time, its no-load speed reaches 4000/9600 rpm, which can meet the efficient cutting, grinding and polishing operations of different materials and operation requirements.