Medical micromotor BLDC

surgicalfor arthroscopydensity

Overview
Mirmex's technology reimagines radial flux BLDC micromotors by eliminating conventional copper wire windings through printed, slotless winding topologies. The result is a compact, customizable family of micromotors featuring zero-cogging and improved thermal and material efficiency.

Highlights

• Slotless brushless DC micromotors with printed winding topologies (no conventional wire windings).
• Zero-cogging for linear driveability and precision.
• Up to 50% smaller for equivalent performance compared to competitors.
• Higher copper fill-factor delivering improved performance density.
• Improved thermal behaviour, reducing thermal and eddy-current losses.
• Custom-made: diameter, length, speed, voltage and topology fully adaptable.
• Autoclavable design for hundreds of sterilization cycles; suitable for harsh environments.

Performance envelope
Diameter: 1.5 - 85 mm
Length: 2 - 120 mm
Power (up to): 1000 W
Torque (up to): 500 mNm
Speed (up to): 120,000 rpm

Application examples
Medical Power Tools Motorization
Diameter: 18.5 mm
Length: 37 mm
Speed: 80,000 rpm
Power: 75 W
Torque: 10 mNm
Efficiency: 93%

• Key features: thermally optimized (longer run time before overheating), more compact and lighter (easier integration in handpieces), higher torque for demanding bone surgeries.

Space Equipment Actuators
Diameter: 20 mm
Length: 32 mm
Speed: 10,000 rpm
Power: 100 W
Torque: 100 mNm

• Key features: high torque for safe operation and simplified gearboxes, lighter weight, robustness and precision for longevity.

Cobot Actuator
Diameter: 43 mm
Length: 30 mm
Speed: 1,500 rpm
Power: 30 W
Torque: 190 mNm

• Key features: increased dynamics and reactivity, smaller motor size for compact integration, zero cogging and linear driveability for precise movements.

Additional benefits

• Easy prototyping and faster, more affordable custom manufacturing.
• Consistent performance and high repeatability down to each copper fiber.
• More sustainable: reduced raw material usage (up to <45%) and lower energy consumption.
• Unique coil/winding topologies unattainable with conventional wire-winding methods.

Technical specifications

• Product family: Radial Flux BLDC micromotors with printed/slotless windings.
• Diameter range: 1.5 mm to 85 mm.
• Length range: 2 mm to 120 mm.
• Maximum power: up to 1000 W (depending on configuration).
• Maximum torque: up to 500 mNm (depending on configuration).
• Maximum speed: up to 120,000 rpm (depending on configuration).
• Zero-cogging topology for smooth, linear torque vs speed behavior.
• Improved copper fill-factor for higher performance density.
• Thermally optimized designs to reduce thermal and Eddy current losses.
• Autoclavable for hundreds of sterilization cycles; suitable for medical and harsh environments.
• Fully customizable dimensions and electrical/mechanical parameters per application.