Rocky is a powerful, 3D Discrete Element Modeling (DEM) program that quickly and accurately simulates the granular flow behavior of different shaped and sized particles within a conveyor chute, mill, or other materials handling equipment.

Several capabilities set Rocky DEM apart from other DEM codes, including non-round particle shapes, the ability to simulate particle breakage without loss of mass or volume, the visualization of boundary surface reduction due to wear, and more.

Mining and manufacturing organizations all over the world are choosing Rocky DEM software to evaluate their bulk material handling systems because Rocky DEM simulates granular flow quickly, accurately, and with more similarity to real-world conditions than ever before. With its ability to create realistic shapes that settle and compact just like actual particles, and its variable sticky and dust-like conditions, Rocky DEM can replicate nearly any type of material handling environment imaginable.

The streamlined calculations and GPU processing capabilities included within Rocky DEM produce faster and more accurate results when compared to other DEM products. And Rocky DEM can simulate more than 5 million particles in nearly limitless size and shape distributions from rocks to grain, metal to plastic, and beyond.

EDRMedeso Nordic Channel Partner for Rocky.

Why unique

  • The only commercial code that uses accurate particle shape
    representation and has advanced breakage and fragmentation
  • Double precision solver that uses shared-parallel memory
    with both CPU and GPU processors
  • Fully integrated with ANSYS Workbench(CFD and FEA)
  • Extensive code validantion and calibration


• Streamlined Calculations
• Double-Precision Processing, now with GPU Capabilities
• Large Particle Size Distributions
• Non-Round Particle Shapes
• Sticky and Dry Contact Rheologies
• 3D Surface Wear Modification
• Animated & Vibrating Boundaries
• Easy CAD Geometry Import and Simulation Setup
• Graphical and At-a-Glance Wear and Power Data
• FEA Integration with ANSYS
• 360° Wraparound Movie View Transitions

Non-Round Particles

Rocky DEM uses truly non-spherical particle models that behave like real-world particles, which produces more realistic results.


Breakage Simulations

Rocky DEM simulates breakage by calculating the fracture of each particle based upon the energy generated from impact or friction.


GPU Processing

Rocky DEM is new use of the GPU accelerates the computational workload, especially when processing simulations with many particles.