A wheel loader is a heavy equipment used to perform granular material handling operations. The complete machine model is developed in Simulink, meanwhile a discrete element method (DEM) solver, modelling unbound granular materials is developed in Demify. Virtual development technologies allow for more efficient testing of the machine and its sub-systems. The implementation of models between different software is required, though there is a lack of standardized interfaces. At this step, FMUs are the leading component making up for a possible integration between different working environments. The work focuses in creating an interface between the two software so the sharing of information is possible.