About Us

Dos Santos International (DSI) is a world-renowned leader in the field of bulk material handling. Founded in 1997 by industry pioneer Joseph A. Dos Santos—the original inventor of the Sandwich Belt High Angle Conveyor—the company has spent over four decades driving innovation and providing advanced engineered solutions for the most demanding global material handling challenges.

Based in Marietta, Georgia, DSI serves a wide array of industries, including mining, energy, port operations, and tunneling, by delivering high-performance, reliable, and cost-effective conveyor technologies.

Our Expertise

DSI's expertise spans the entire spectrum of bulk material handling. We specialize in engineering, consulting, and the development of proprietary conveyor systems. Our team leverages extensive field experience and structural mechanical knowledge to provide bespoke designs that optimize efficiency and safety.

From deep-mine elevation to large-scale port operations, our systems are designed to handle complex profiles, steep inclines, and massive capacities. We are not just a supplier but a partner that provides full-lifecycle support, from initial project feasibility and engineering consulting to parts and maintenance assistance.

Products & Services

Our product portfolio is built on cutting-edge engineering and innovation:

  • Sandwich Belt High Angle Conveyors: As the foremost authority on this technology, DSI offers industry-leading solutions for elevating bulk materials at extreme angles.
  • Conventional & Overland Conveyors: Robust systems engineered for high-capacity material transport across both simple and complex, challenging terrains.
  • Shiploading and Unloading: Comprehensive solutions tailored for port and harbor environments to maximize loading and unloading efficiency.
  • Expanded Conveyor Technology (ExConTec): Our proprietary program and methodology for optimizing conveyor performance.
  • Adder Snake Conveyors: Our latest patented advancement in conveying technology.
  • Rigging, Reeving, and Hoisting: Specialized technical support and engineering services for critical lifting applications.
  • Consulting & Engineering: Professional structural and mechanical design services tailored to unique industrial site requirements.

Commitment to Excellence

At DSI, we remain committed to quality, reliability, and innovation. With a global footprint of installations ranging from grain terminals on the Mississippi River to major infrastructure tunneling projects in Europe, DSI continues to set the standard for high-angle and complex conveying.

Our mission is to continue advancing the capabilities of the bulk materials handling industry through rigorous engineering, dedication to our clients, and the development of modern, sustainable technology solutions.