Hangzhou Vast Precision Technology produces motor rotor overmoulding above is mainly used in automotive electronics water pumps, water pump motors, etc.; mainly rotor sealing to prevent corrosion of the rotor permanent magnets. In the development and design stage before the project, we will assist customers to carry out finite element analysis 3D electromagnetic field calculation, mechanical structure design, magnet selection, magnetic circuit structure optimisation, the overall rotor sealing overmoulding and so on to provide a total solution.