Customised BLDC motors with extreme power density

For applications where performance, compactness, and precision cannot be compromised, Compotech offers next-generation brushless DC motors based on a patented printed winding technology. These are not catalogue motors—each motor is developed from the ground up for the customer’s application.

Through advanced electromagnetic modelling and a unique winding architecture, we optimise for the exact parameters that matter in your application: torque, dynamic response, efficiency, temperature, lifespan, and mechanical integration.

Patented winding technology – a step change in BLDC motors

At the core of the technology is a printed, substrate-based winding system that replaces traditional wire windings.
Unlike conventional windings, this enables:

  • Geometrically flexible winding shapes tailored to the magnetic field
  • Significantly higher copper fill factor
  • Extremely low torque ripple and zero cogging
  • Reproducible quality and high manufacturing precision

The result is markedly higher power density compared with conventional wire-wound motors.

Typical performance gains compared with conventional technology

Depending on the application, benefits include:

  • Up to 50% more compact motors
  • Up to 70% higher dynamic torque
  • Faster acceleration and improved controllability
  • Up to 3× better thermal performance
  • Low inductance → ideal for high-dynamic servo applications
  • High efficiency even at high speeds

This makes the technology particularly well suited to applications with tight installation constraints, high precision requirements, or where thermal management is a limiting factor.

No compromise – every motor is optimised for the application

Unlike conventional motor selection, where you are forced to choose the “closest” catalogue motor, we start from the customer’s actual requirements:

  • Voltage, current, and speed
  • Continuous and dynamic torque
  • Thermal constraints
  • Mechanical interfaces
  • Sensors, encoder integration, redundancy, etc.

Using AI-assisted multiphysics modelling, millions of design combinations are explored to develop the optimal motor.

Architectures and delivery formats

The technology can be realised in several motor configurations:

  • Cylindrical BLDC motors (radial flux), both inner and outer rotor
  • Flat disc motors (axial flux)
  • Linear motor solutions

Delivery can be provided as:

  • Stators
  • Built-in motors (rotor/stator components)
  • Fully assembled motors
  • Integrated motor and gearbox solutions
  • IP licences for high-volume production

Brushless micro motors

A wide range of truly miniaturised motors, with the accompanying gears, electronics and linear components. These motors offer a long service life and high dynamic performance in addition to compact dimensions and are completely free of magnetic cogging.

Typical application areas

The technology is used with great success in:

  • Medical technology and surgical tools
  • Robotics and precision automation
  • Active prosthetics and wearable systems
  • Industrial high-performance tools
  • Compact drive systems with high demands on dynamic response and low noise

In real-world applications, customers have achieved significantly reduced motor size, lower weight, reduced energy consumption, and improved ergonomics—without compromising performance.

Krister Larsson

Application Engineer Motors

krister.larsson@compotech.se
+46 8 441 5822

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