Make better motor design
decisions, faster
Material selection, winding analysis, and motor modeling — all in one place. No installation. No sign-up required.
Browse Tools ↓Interactive calculators — open in your browser, no installation or sign-up needed.
Permanent Magnets
Browse a curated library of NdFeB and other permanent magnet grades. View demagnetisation B-H curves, compare remanence, coercivity, and energy product side-by-side, and convert between SI and CGS units.
Open tool →Electrical Steel
Explore core loss and permeability data for electrical steel grades from SURA, Thyssenkrupp, and Voestalpine. Compare grades at different flux densities and frequencies with interactive charts.
Open tool →Winding Analysis
Design and analyse three-phase AC windings for integer-slot, fractional-slot, and tooth-coil configurations. Visualise conductor layout, winding factor spectrum, MMF harmonics, and star-of-slots diagram. Compare multiple configurations side-by-side.
Open tool →DC Motor WIP
Analyse the steady-state performance of brushed DC motors: torque, speed, current, and efficiency across operating conditions. A practical starting point for robotics actuator sizing.
Open tool →PMSM WIP
Model surface permanent magnet synchronous motors: interactive equivalent circuits, phasor diagrams, torque–speed curves, and an efficiency map tool for sizing and performance analysis.
Open tool →Motor Selector WIP
BLDC and PMSM motor–controller matching. Describe your application — voltage, torque, speed — and get compatible motor and controller pairs with compatibility scores and direct purchase links.
Open tool →Short reads on motor design fundamentals — the theory behind the tools. Pick a topic, then an article.
Windings 7
Winding factor, harmonics and slot/pole choices.
Electrical steel & core loss 4
Reading steel data, where iron loss comes from, and how to model it.
Motor constants & control 2
Datasheet constants and FOC set-up.