Rock Flow System CONTINUOUS HARD ROCK HAULAGE SYSTEM Block Caving with Continuous Haulage Block cave mining is a mass-mining technique used in many underground mines around the world. The innovative Cat® Rock Flow System – jointly developed with the Chilean mining company Codelco – greatly improves productivity by making use of continuous haulage technology as compared to the conventional use of LHD’s. The Cat Rock Flow System combines the usage of a Rock Feeder, a Rock Mover and an automation system to deliver mass mining production with improved safety and sustainability. The Rock Feeder RF300 extracts ore from the drawpoint onto the Rock Mover (Hard Rock Chain Conveyor) by a hydraulically operated push plate. The Rock Mover RM900 is a dedicated hard rock production conveyor that collects ore from various drawpoints. An automation system (featuring remote operation from surface) allows draw and quality control and records operational data. Rock Flow System Specifications Rock Feeder (RF300) Dozer Plate Cylinder Quantity Cycle Time Pressure – Total Pushing Cylinders Quantity Stroke Pressure – Total Weight – Pushing Device Rock Mover (RM900) Chain Speed Drive Power Conveyor Length Chain Size Hydraulic Return Unit Option 1: Manually adjustable unpowered Option 2: Fully activated

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