Unveiling the power behind Kyocera power tools - How brushless motors work

Brushless motors have become a revolutionary new technology in the world of power tools and Kyocera has taken the lead with its cutting-edge brushless technology. To understand the significance of this innovative technology we will have a look at how it works.

The concept of an electric motor.

DC Brushed Motor

The simplest and one of the first types of motor is the brushed DC motor, invented and developed in the 19^th century, and found in most electrical devices today. This motor works by passing electrical current through coils inside an assembly with a magnetic field around it. The current generates a magnetic field in each of the coils, causing the coil assembly to rotate by pushing the coil away from its like pole and pulling it toward the unlike pole in the fixed field on the outside. To keep the assembly rotating, the assembly needs to keep reversing the current so that the coil polarities within keep flipping, creating rotation in the motor. This is done by rotating the commutator which causes the reversal of the current through the coils.

Brushless DC Motors

With the brushless DC motor, the concept of the motor and how it is put together is flipped inside out. The coils on a brushless motor are situated on the outside of the assembly with a rotating magnet in the middle, creating a magnetic field to rotate the magnet in the assembly.

The benefits of the brushless DC motor vs the brushed variation:

The advantages of the brushless DC motor configuration over brushed motors are a high power-to-weight ratio, high speed, nearly instantaneous control of speed and torque, high efficiency and low maintenance. The elimination of the sliding contact allows brushless motors to have less friction and thus a longer life, meaning their working life is limited only by the lifetime of their moving parts and bearings.

Brushless motors provide numerous advantages compared to brushed DC motors.

The benefits include a high torque-to-weight ratio and enhanced efficiency in the motor leading to more torque per watt.

Brushless technology also increased reliability, reduced noise, and extended lifespan by eliminating brush and commutator erosion. Less moving parts mean the absence of ionizing sparks from the commutator and an overall reduction in electromagnetic interference (EMI).

The rotor, lacking windings, is not affected by centrifugal forces. Moreover, the windings, supported by the housing, can be cooled through conduction, eliminating the need for internal airflow for cooling. Consequently, the motor's internals can be fully enclosed, safeguarding them from dirt or other external contaminants which also lead to excess wear and tear on the motor.

Kyocera's embrace of brushless technology in their power tools marks a pivotal moment in the evolution of electric motors. As we witness the seamless synergy of efficiency, durability, and intelligent design, it's evident that brushless motors are reshaping the landscape of power tools. Whether you're a professional tradesperson or a DIY enthusiast, the advantages offered by Kyocera's brushless technology make it a compelling choice for those seeking top-tier performance in their power tools.

In the ever-evolving realm of technology, Kyocera stands as a testament to innovation, pushing the boundaries of what's possible and empowering users to tackle tasks with unparalleled precision and efficiency. As we move forward, the integration of brushless motors in power tools is likely to become the gold standard, setting new benchmarks for performance and reliability in the industry.

Find a range of Kyocera Power tools utilizing the brushless motor technology on the AgMarket Website. We stock everything from polishers,saws, drills and grinders to the super-efficient dysontype wet and dry vacuum cleaner.