Industrial micromotor BLDC

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Overview
Mirmex develops custom axial‑flux BLDC micromotors using patented stator winding topologies that remove the need for conventional copper wire windings. Coupled with motor modelling and optimization tools, this approach enables axial and radial architectures, advanced multi‑airgap topologies and variants with zero cogging to meet specific industrial design constraints.

Design & Technology Highlights

• Zero copper wire windings: novel stator winding method eliminating conventional copper wire constraints.
• Patented axial‑flux stator winding topologies enabling coil patterns not achievable with wire winding.
• Support for advanced architectures including multi‑airgaps and zero‑cogging variants.
• Motor modelling and optimization to maximize electromagnetic performance for the target application.

Performance Ranges (key metrics)
Diameter [mm] : 12 - 300
Thickness [mm] : 4 - 60
Power (up to) [W] : 3000
Torque (up to) [Nm] : 2
Speed (up to) [rpm] : 50 000

Benefits

• More compact: up to 50% smaller at equal performance versus conventional solutions.
• Superior performance density due to improved copper fill‑factor within the same volume.
• Custom made: full design freedom (diameter, length, speed, voltage) to match application constraints.
• Faster prototyping and lower prototype cost (claimed ~10x faster).
• Lower material use and energy demand (up to ~45% raw material reduction).
• Improved thermal behaviour: higher fill‑factor and loss balancing reduce thermal losses.
• Ambient resistant: designed to operate in harsh conditions (temperature swings, detergents, corrosive atmospheres, dusty environments).

Unique Features

• Unique coil topologies delivering improved electromagnetic performance and efficiency.
• Capability to supply axial and radial‑flux motors, single and multi‑airgap variants with recommendations per application.
• Advanced multi‑airgap and zero‑cogging options available for precision requirements.

Application Examples
Space Flywheel
Diameter: 140 mm
Length: 18 mm
Speed: 1000 rpm
Power: 30 W
Torque: 300 mNm
Efficiency: 90%

• Ultra‑light design enabling system weight reduction while delivering required performance.
• Optimized inertia and torque for improved equipment efficiency.

Active Prosthetic Arms & Legs
Diameter: 40 mm
Length: 10 mm
Speed: 12,000 rpm
Power: 36 W
Torque: 30 mNm
Efficiency: 94%

• Specific winding topology for fine‑tuned dynamic response and efficiency.
• Extremely compact form factor for easier integration into prosthetic systems.
• Custom‑made options to meet dimensional and performance constraints affordably.

Project Management Flow

• Scope & Modeling
• Prototyping
• Testing & Fine Tuning
• Mass Production

Notes
Advanced topologies (including multi‑airgaps) can be implemented with zero cogging on selected variants. Mirmex supports selection between radial and axial architectures to recommend the optimal solution for the design constraints.

Technical Specifications / Characteristics

• Technology: Axial‑flux BLDC micromotors with patented stator winding topologies (no conventional copper wire windings).
• Diameter range: 12 - 300 mm.
• Thickness range: 4 - 60 mm.
• Max power: up to 3000 W.
• Max torque: up to 2 Nm.
• Max speed: up to 50,000 rpm.
• Performance claims: up to 50% smaller size vs competitors at equal performance; superior copper fill‑factor; improved thermal behaviour.
• Manufacturing: custom‑made designs, faster prototyping (claimed ~10x faster).
• Durability: designed for harsh ambient conditions (temperature variations, detergents, corrosive atmospheres, dust).
• Topology options: single and multi‑airgap designs, zero‑cogging variants, unique coil topologies.