The development process of complex production machines requires an intense collaboration of different technical disciplines. In this context, the interdisciplinary development. team often lacks a common and continuously updated system model of the machine, which can consequently lead to high communication effort and delays the overall development process. For a more efficient and effective production machine design process, an interdisciplinary modeling language is required that follows a generic design approach. Therefore, we analyzed existing modeling languages and identified drawbacks concerning their application to machine design. Based on our findings, we developed the Interdisciplinary Modeling Language (IML), combining the benefits of existing languages with further extensions. IML includes three diagram types: Functional Structure (FS), Interaction Structure (IS) and Sequential Behavior Diagram (SBD). Furthermore, we propose how these diagrams can be integrated into the general machine development process and demonstrate the utilization of IMI, on the basis of a use case.