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Compared to brushed DC motors, brushless DC motor technology offers numerous technical advantages, including higher power density, improved efficiency and reliability, a wider speed range, reduced noise, and a longer lifespan. MOONS' product lineup features a diverse range of high-quality brushless DC motors, with base sizes ranging from φ13mm to 80mm. These include brushless slotted motors, brushless slotless motors, and outer rotor brushless motors. As electronic control technology continues to advance and become more widespread, brushless motors are expected to become more compact, achieve even greater power density, and increasingly replace brushed motors across a broader range of applications.

Brushless DC Motors

MOONS' officially launched its new products of BLDC motors. Customers could benefit from our innovation of optimized design for better performance of lower noise, lower vibration and longer working life. Brushless DC motor could be widely applied in the applications of FA, Pump & valve, solar energy, automotive etc.

Slotless Brushless DC Motors

With 11 types of winding, theØ13mm series slotless BLDC motors are available in long and short versions with 2 different output powers. MOONS' new micro motions system includes a slotless motor, gearbox, encoder, driver, and mechanical components.

BLDC Drivers

These brushless DC drives are based on advanced control technology that features excellent performance and ease of use. The drives are aimed at applications requiring high performance, high speed stability, basic velocity control, simple setup and low cost in a compact design.

Slotless/Coreless Motor Drivers

MOONS' slotless and coreless series drive is specially developed for MOONS' slotless and coreless series products, users can achieve fast motor drive through this series of products.

Frequently Asked Questions about Brushless DC Motors

• The difference between slotless brushless DC motor and slotted brushless DC motor

Structure
Slotted Brushless DC Motor: This type of motor features a rotor with a certain number of slots to accommodate the installation of coils, resulting in cogging torque. This design provides a high starting torque, making it ideal for low-speed, high-power applications.
Slotless Brushless DC Motor: The rotor in this motor comprises a smooth, integral iron core with several coils wound on its surface. This design minimizes friction and energy loss, thereby improving motor efficiency and output power. It is particularly suited for high-speed, high-torque density, and space-constrained applications. A key advantage of the slotless brushless DC motor is the elimination of the cogging effect, which ensures exceptionally smooth operation. The cogging effect arises from interactions between the rotor's permanent magnets and the stator's slots or teeth, causing speed instability, especially at low speeds. By eliminating stator slots, the slotless design effectively removes cogging torque, resulting in smoother and more controllable operation.

Performance
Efficiency: The slotless brushless DC motor's rotor structure completely eliminates power loss due to eddy currents in the iron core. With a significantly reduced weight and moment of inertia, its efficiency is typically over 10% higher than that of slotted brushless DC motors.
Starting Torque: Slotted brushless DC motors provide a high starting torque, making them suitable for applications requiring low speed and high power output.
Speed Range: Slotless brushless DC motors excel in high-speed and high-torque density environments, achieving speeds up to 100,000 RPM. In contrast, slotted motors are better suited for low-speed, high-power applications, typically operating within a speed range of 1,000–5,000 RPM.

Applications
Slotted Brushless DC Motor: Ideal for low-speed, high-power scenarios, such as household appliances like air purifiers, vacuum cleaners, and washing machines.
Slotless Brushless DC Motor: Designed for high-speed, high-torque density, and space-constrained applications, including medical equipment and dexterous robotic hands, where torque density and compact design are critical.

• Advantages of Brushless DC Motors

(1) It exhibits excellent mechanical and control characteristics, making it a viable replacement for brushed DC motors, variable frequency motors, and asynchronous motors.
(2) It can operate at low speeds with high power, enabling the direct drive of large loads without requiring a gearbox.
(3) It retains many advantages of traditional brushed DC motors while eliminating the brush and collector ring structure.
(4) It offers superior torque characteristics, excellent medium- and low-speed torque performance, high starting torque, and low starting current.
(5) It supports stepless speed regulation, a wide speed adjustment range, and strong overload capacity.
(6) It is compact, lightweight, and capable of producing high torque.
(7) It features smooth soft start and stop capabilities, along with excellent braking performance, eliminating the need for traditional mechanical or electromagnetic braking devices.
(8) The motor has low excitation loss, high efficiency, and delivers significant overall energy savings.
(9) It is highly reliable, stable, adaptable, and easy to maintain.
(10) It is resistant to shocks and vibrations, operates quietly, runs smoothly, and boasts a long service life.
(11) It does not produce sparks, has strong anti-interference capabilities, and offers excellent safety performance.

• Applications of Brushless DC Motors

Brushless DC motors are widely used in various fields, including automobiles, base station antennas, drones, industrial robots, power tools, computers, the ventilation industry, household air conditioners, and instruments. In computers, precise and diverse forms of brushless DC motors are extensively employed in components like CD-ROM drives and hard disks.
Currently, the majority of motors in electric bicycles, electric motorcycles, and micro electric vehicles are brushless DC motors. The annual output of brushless motors for electric bicycles alone reaches tens of millions of units nationwide, with some manufacturers producing millions of units annually. Brushless motors are also being increasingly adopted in sightseeing vehicles, tour buses, forklifts, and electric cars. Among these, brushless DC motors for electric vehicles are the most widely used and highest-yielding category of brushless motors.
The value of brushless DC motors continues to grow as they not only replace general permanent magnet brushed DC motors but also find extensive use in high-precision applications, such as CNC machine tools, machining centers, and intelligent robots. These motors deliver high efficiency across a wide speed range, making them particularly suitable for variable frequency speed regulation in household appliances. Products like air conditioners, refrigerators, and washing machines are gradually transitioning from conventional single-phase asynchronous motors to brushless DC motors.
With their versatility and advantages, brushless DC motors have a promising future and significant development potential.