Design 110k RPM Micro BLDC

I’m developing a 28 mm, 310 V, three-phase micro BLDC that must safely spin at 110,000 rpm for an industrial-grade hair-dryer style application. Low audible noise is the top priority, even under prolonged high-temperature airflow.

I already have target dimensions and supply voltage; what I need now is an experienced motor engineer who can take those parameters and turn them into a manufacturable design that meets industrial equipment standards for reliability and lifetime. Finite-element magnetic optimisation, rotor-dynamic balancing, bearing selection and detailed winding data all have to come together so the final unit stays whisper-quiet at full speed. Thermal modelling is equally important because the motor will live in a hot air stream.

Deliverables • Electromagnetic design files and simulations (Maxwell, Motor-CAD or similar) • Complete mechanical drawings with tolerances ready for CNC/prototyping • Winding specification, material list and assembly notes • Predicted performance curves (torque, efficiency, noise, temperature rise) • Recommendations for driver topology compatible with 310 V three-phase supply

I will supply any existing 3D models and performance targets on project start. A quick turnaround for the first concept is appreciated, followed by iterative refinement until the noise and thermal goals are fully met. Budget: USD 750–1500 Skills: CAD/CAM, Mechanical Engineering, Finite Element Analysis, Manufacturing Design, Product Design, 3D Modelling, Simulation