Over 45 Years Manufacturing Portable Mining & Construction Equipment Screen Machine Industries, is one of the largest manufacturers of portable jaw, impact & cone crushers, screening plants, trommels and conveyors in North America and is a global leader in design and innovation within the industry. A complete line of portable jaw, impact & cone crushers, screening plants, trommel screens and portable stacking conveyors is offered to fit a variety of applications. Our award-winning product offerings are the contractor's choice for reliability and productivity. Screen Machine Industries manufactures only heavy-duty, portable crushing & screening plants that are capable of handling your toughest jobs.