Donald Engineering - Fluid Power and Motion Control Systems,... Welcome Thank you for visiting our website. We are honored that you have taken the time to find out more about our... company. The employees of Donald Engineering have worked hard to make sure you are well informed, have the right information to make an educated decision, and the confidence... to a quality solution. Products and Services Donald Engineering represents the highest quality products in Fluid Power and Motion Control. Our customer commitment is backed by our...