Where physics meets performance
4MULTIPHYSICS is specialized in the design and optimization of radial flux and axial flux electrical machines through a multidisciplinary approach — mechanical design, advanced analytical assessments, structural and dynamic simulations, thermal and CFD analyses, and Multiphysics workflows.
A company on the rise, with a strong focus on R&D
“Finite Element Analysis makes a good engineer great, and a bad engineer dangerous!” — Robert D. Cook
Located in Cluj-Napoca, Romania, we bring a strong track record of successful collaborations with industry partners and academics, with a deep understanding of the requirements and challenges of the sectors we have had the privilege to contribute to — automotive, industrial automation, renewables, robotics and aerospace.
Our expertise in advanced Multiphysics simulation positions us at the forefront of addressing these challenges and developing innovative solutions that surpass the current state of the art.
Our storyThe V-cycle — our development backbone, scrubbed as you scroll
Proof, not promises
One machine. Every physics.
A complete multidisciplinary chain — from first analytical sizing to fully coupled Multiphysics simulation.
Analytical calculations
High-precision machine-element verification and dimensioning, with deep bearing-design specialization.
ExploreElectrotechnical
Electromagnetic sizing, FE modelling, winding design and fault analysis for electrical machines.
ExploreMechanical FEA & NVH
Static, dynamic, vibration, shock and acoustic simulation — from modal analysis to waterfall diagrams.
ExploreThermal & CFD
Advanced cooling technologies, conjugate heat transfer and multiphase flow for high power density motors.
ExploreMultiphysics simulation
Coupled electromagnetic–thermal–structural–NVH workflows, tackled on a daily basis.
ExploreTools
Fully independent: Ansys suite, Mathcad, MITCalc, MATLAB and a 128-core HPC cluster in-house.
ExploreWhat our customers say
Hear from partners who have experienced the quality and value of our services.
“Over the years we have developed a position of strength in mechanical and thermal engineering in collaboration with 4MULTIPHYSICS SRL. They have now become our reference partner for mechanical structural and vibration and thermal computational fluid dynamics. Their intimate knowledge of our electric machine products enables them to quickly engage complex finite element calculations, thus avoiding a long learning curve for each new project.”
“4MULTIPHYSICS stands out through its strong technical expertise, innovative mindset, and genuine openness to collaboration. Communication was always clear, efficient, and solution-oriented, and all deadlines and commitments were respected. Their innovative approach and focus on quality make 4MULTIPHYSICS a highly valuable and trustworthy partner, especially in complex R&D and European-funded projects.”
“Across all collaborations, their professionalism, depth of expertise, and ability to tailor solutions to our specific challenges consistently delivered measurable impact. The 4MULTIPHYSICS team stands out not only for their engineering expertise but also for their proactive mindset and commitment to excellence — qualities that make them a trusted partner for any high-performance environment.”
Ready to push past the state of the art?
Tell us about your machine, your constraints and your targets — we'll bring the physics.