BAUTZ motors, Germany BAUTZ models, BAUTZ prices

BAUTZ motors refer to motors with speeds exceeding 10000r/min. Due to their high speed, their volume is much smaller than that of ordinary motors of the same power. Connected directly to the prime mover, they eliminate traditional reduction gears. With low rotational inertia, high-speed motors offer advantages such as high power density, effective material savings, high transmission efficiency, low noise, and fast dynamic response.

BAUTZ motor advantages

Advantages of the motor: 1. Low losses and low temperature rise. Since the magnetic field of a permanent magnet synchronous motor is generated by permanent magnets, excitation losses (i.e., copper losses) caused by generating the magnetic field through excitation current are avoided. There is no current in the rotor during operation, which significantly reduces the motor temperature rise; under the same load conditions, the temperature rise is more than 20K lower. 2. High power factor. The power factor of a permanent magnet synchronous motor is high and is independent of the number of motor poles. At full load, the power factor approaches 1. Compared with asynchronous motors, this results in lower motor current, correspondingly lower stator copper losses in the motor, and higher efficiency. In contrast, for asynchronous motors, the power factor decreases as the number of motor poles increases. Furthermore, because of the high power factor of permanent magnet synchronous motors, the capacity of the associated power supply (transformer) can theoretically be reduced, and the specifications of associated switchgear and cables can also be reduced. 3. High efficiency. Compared with asynchronous motors, permanent magnet synchronous motors have much higher efficiency values at light loads. Their high-efficiency operating range is wide; within the 25% to 120% range, the efficiency is greater than 90%. The rated efficiency of permanent magnet synchronous motors can meet the 1 energy efficiency requirements of the current national standard, which is their greatest advantage in energy saving compared with asynchronous motors. In actual operation, motors rarely operate at full power when driving loads. The reasons are: on one hand, when selecting motors, designers generally determine the motor power based on the extreme operating conditions of the load, but such extreme conditions occur infrequently. At the same time, to prevent motor burnout under abnormal conditions, designers will further provide a power margin for the motor. On the other hand, to ensure motor reliability, motor manufacturers usually provide an additional power margin beyond the power requested by the user. This results in most actually operating motors working below 70% of their rated power, especially when driving fan or pump loads, where motors typically operate in the light-load region. For asynchronous motors, the light-load efficiency is very low, whereas permanent magnet synchronous motors can still maintain high efficiency in the light-load region. 4. Other advantages. Permanent magnet synchronous motors also offer high starting torque, short starting time, and high overload capability. The installed capacity of equipment drive motors can be reduced based on the actual shaft power, saving energy and reducing investment in fixed assets. Permanent magnet synchronous motors are easy to control, with constant speed that does not vary with load fluctuations or voltage fluctuations, but depends only on frequency, ensuring smooth and reliable operation. Due to strict speed synchronization, they have good dynamic response performance and are suitable for variable frequency control. The installation dimensions of permanent magnet synchronous motors comply with IEC standards, allowing direct replacement of three-phase asynchronous motors. The protection rating can achieve IP54 and IP55, and some manufacturers also produce explosion-proof permanent magnet synchronous motors.

BAUTZ motor structure

Motors mainly consist of components such as the rotor, end covers, and stator. The stator structure of a permanent magnet synchronous motor is very similar to that of a standard induction motor. The main difference in rotor structure compared to asynchronous motors is the presence of high-quality permanent magnet poles on the rotor. Depending on the placement of the permanent magnets on the rotor, permanent magnet synchronous motors are typically classified into surface-mounted rotor structures and interior rotor structures. The placement of permanent magnets significantly affects motor performance. Surface-mounted rotor structure: Permanent magnets are located on the outer surface of the rotor core. This structure is simple but produces very little asynchronous torque, making it suitable only for applications with low starting requirements; it is rarely used. Interior rotor structure: Permanent magnets are located within the iron core between the squirrel-cage bars and the shaft. This structure offers good starting performance, and the vast majority of permanent magnet synchronous motors adopt this design.

BAUTZ motor differences

The primary difference between motors lies in whether the rotor speed is consistent with the stator's rotating magnetic field. If the rotor speed matches the stator's rotating magnetic field, it is called a synchronous motor; otherwise, it is called an asynchronous motor. Additionally, while the stator windings of synchronous and asynchronous motors are the same, the difference lies in the rotor structure. The rotor of an asynchronous motor consists of short-circuited windings that generate current through electromagnetic induction. In contrast, the rotor structure of a synchronous motor is relatively complex, featuring DC excitation windings. Therefore, an external excitation power source is required to introduce current via slip rings. Consequently, synchronous motors have a relatively complex structure, with higher manufacturing and maintenance costs. Unlike asynchronous motors, which can only absorb reactive power, synchronous motors can both generate and absorb reactive power. The speed of a synchronous motor is synchronized with the electromagnetic speed, whereas the speed of an asynchronous motor is lower than the electromagnetic speed. Regardless of the load size, as long as it does not fall out of step, the speed of a synchronous motor remains constant. The speed of an asynchronous motor changes constantly with the load. Synchronous motors offer high precision but involve complex manufacturing, high costs, and relatively difficult maintenance. Asynchronous motors, although slower in response, are easy to install and use, and are inexpensive. Therefore, synchronous motors are not as widely applied as asynchronous motors. Synchronous motors are mostly used in large generators, while asynchronous motors are used in almost all motor applications.

Weidou Intelligent Technology specializes in selling German BAUTZ motors, BAUTZ motors, BAUTZ drives, BAUTZ synchronous motors, BAUTZ servo motors, BAUTZ DC motors, BAUTZ AC motors, BAUTZ stepper motors, BAUTZ synchronous motors, BAUTZ asynchronous motors, BAUTZ single-phase motors, BAUTZ three-phase motors, BAUTZ drive motors, BAUTZ geared motors, BAUTZ electric motors. BAUTZ products are original imports from Germany. Customers are welcome to inquire and order.