Dos Santos International

Main Office

531 Roselane St, Suite 810, Marietta, GA 30060
+1 770 423 9895

About Dos Santos International

Dos Santos International (DSI) is a leading engineering firm specializing in innovative bulk material handling solutions.

Founded in 1997 by Joseph A. Dos Santos, the company has established itself as a pioneer in the design and implementation of advanced conveyor systems, particularly the Sandwich Belt high angle conveyors.

Company Overview

With over 40 years of experience, DSI offers a comprehensive range of services, including engineering consulting, design, and supply of bulk material handling systems.

The company's expertise spans various industries, such as mining, energy, steel and tunneling, providing customized solutions that enhance operational efficiency and safety.

Innovative Products and Solutions

DSI's product portfolio is centered around cutting-edge conveyor technologies designed to meet the diverse needs of its clients:

Sandwich Belt High Angle Conveyors: Developed by Joseph A. Dos Santos, these conveyors utilize two belts to form a sandwich around the material, allowing for the transportation of bulk materials at steep angles, even vertically.

This design offers a space-efficient and cost-effective alternative to traditional conveying methods.

Conventional and Overland Conveyors: DSI provides conventional conveyor systems capable of handling high capacities and significant lifts, tailored to the specific requirements of each project.

Shiploading and Unloading Systems: The company offers solutions for efficient bulk material handling in port and harbor settings, facilitating the loading and unloading of ships with minimal environmental impact.


Rigging, Reeving, and Hoisting Solutions: Dos Santos International offers expert rigging, reeving, and hoisting systems for industrial applications, ensuring safe and efficient material handling, conveyor tensioning, and maintenance support.

Expanded Conveyor Technology (ExConTec)

DSI's Expanded Conveyor Technology (ExConTec) reflects a comprehensive approach to conveyor design, pushing the boundaries of conventional systems. By addressing and predicting additional flexural and shear resistances along vertical and horizontal curves, ExConTec enhances the performance and reliability of conveyor systems.

Industries Served

DSI's solutions are utilized across a wide range of industries, demonstrating the versatility and adaptability of their technologies:

  • Mining: Efficient transportation of minerals and ores from extraction sites to processing facilities.
  • Energy and Power: Handling of bulk materials such as coal and biomass for power generation.
  • Steel and Metalworking: Conveying raw materials and finished products within steel mills and metal processing plants.
  • Tunneling: Removal of excavated material during tunnel construction projects.
  • Recycling: Transportation and processing of recyclable materials in waste management facilities.

Commitment to Innovation and Quality

At the core of DSI's operations is a commitment to innovation and quality. The company continually invests in research and development to enhance its product offerings and adapt to the evolving needs of the industries it serves. By maintaining stringent quality control measures, DSI ensures that its solutions meet the highest standards of performance and reliability.

Global Reach and Notable Projects

DSI has a global presence, with installations and projects spanning various continents. Notable projects include:

  • Paris Tunneling Project: Supply of two high-angle conveyors to elevate tunnel muck at a 90° angle, demonstrating the capability of DSI's Sandwich Belt conveyors in urban construction settings.
  • Floating Grain Terminal on the Mississippi River: Provision of a Sandwich Belt conveyor for efficient grain handling on a floating terminal, showcasing the adaptability of DSI's solutions in maritime environments.

Leadership and Expertise

Joseph A. Dos Santos, the founder and president of DSI, is a recognized authority in the field of bulk material handling. With a background in civil and mechanical engineering, he has authored numerous research articles and holds several patents related to conveyor technology. Under his leadership, DSI has assembled a team of experienced professionals dedicated to delivering innovative solutions and exceptional service to clients worldwide.

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