Sierra has divisions involved in the sale of equipment for the scrap metal industry, recycling and solid waste markets. In addition, there are divisions for recycling and demolition, South America and European operations, the Recycling and Solid Waste Division of Sierra, provides the sales and service for Macpresse balers, conveyors, shredders and sorting equipment in the United States, Canada, Mexico and parts of Central and South America, Heavy Construction, Conveyors ...