Brushless DC Motors – High-Efficiency BLDC Drive Systems

Brushless DC motors, BLDC motors, are direct current motors that use electronic commutation instead of brushes. This provides higher efficiency, longer lifespan, and significantly lower maintenance needs than traditional DC motors. The range includes models with power levels from around 1.5–1200 W and drive voltages between 12–48V. Depending on the design, the motors can be supplied with planetary gearboxes and with Hall sensors, encoders, or integrated drivers. BLDC motors can also be customized as needed, for example regarding cabling, connectors, and mechanical interfaces. Please feel free to contact us for further information.

The Function and Basic Properties of Motors – Brushless DC Motors

Brushless DC motors are based on electronic control where rotating magnetic fields are generated via an external or integrated driver. The brushless design reduces friction and heat generation, resulting in high efficiency, quiet operation, and long lifespan. These properties make BLDC motors ideal for applications that require precision, stable operation, and high performance, such as medical technology, robotics, industrial automation, and advanced instrumentation solutions.

  • High efficiency and quiet operation
  • Power levels from approximately 1.5–1200W
  • Drive voltages between 12–48V
  • Precise control via electronic commutation

Gear Options and Performance for Brushless DC Motors

By combining BLDC motors with different gear ratios, speed, torque, and performance can be tailored to specific requirements. Planetary gears provide high efficiency and compact design. Together, this makes the BLDC motors flexible for a variety of applications with demands for both precision and strength.

  • Planetary gears – high torque density and compact design

Performance varies depending on the motor series, but typical values range from approximately 1–10000 rpm and 0.16–2900 mNm.

Customizations & Connections for Brushless DC Motors

BLDC motors can be customized both electrically and mechanically to suit demanding applications. Customized shafts ensure proper attachment, while custom cabling, connectors, or sensors provide optimal control and integration. The choice between Hall sensors, encoders, or sensorless solutions enables precise regulation of speed and torque. If necessary, EMC-compliant electronics can also be offered.

  • Customized shaft dimensions
  • Customized cable connections & connectors
  • Choice of encoder or Hall sensors
  • EMC adaptation if needed

FAQ – Frequently Asked Questions about Brushless DC Motors

What is a BLDC motor?
A brushless DC motor is electronically controlled instead of using mechanical brushes, resulting in higher efficiency and longer lifespan.

Are brushless motors quieter?
Yes, the brushless design reduces both friction, noise levels, and vibrations.

How is a BLDC motor controlled?
Via electronic commutation, often with Hall sensors or encoders for precise regulation.

What factors affect lifespan?
Load, temperature, speed, and the quality of electronics and bearings affect lifespan.

Brushless DC motors BT external driver

Power
3.2 - 660 W
Voltage
12 - 48 VDC
Current
0.3 - 20 A
Nominal speed
1800 - 10 000 rpm

Brushless DC planetary gear motor PBT external driver

Power
1.6 - 39 W
Voltage
12 - 24 VDC
Current
0.3 - 3.2 A
Nominal speed
1 - 1400 rpm

Brushless DC motors BT integrated driver

Power
3.1 - 51 W
Voltage
12 - 24 VDC
Current
0.2 - 4.5 A
Nominal speed
4800 - 5400 rpm

Brushless DC planetary gear motor PBTI integrated driver

Power
1.5 - 41 W
Voltage
12 - 24 VDC
Current
0.2 - 4.4 A
Nominal speed
1 - 1400 rpm

Brushless DC motors drivers

Power
80 - 1200 mm
Voltage
8 - 60 VDC
Current
3 - 20 A
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