Portable rock crushing and portable screening state wide. Crushed aggregates, crushed base and screening of materials. Crushing in your pit or ours. Limestone aggregates available by the ton, yard, and truck load. We are here to assist you with your project, large or small.Crushing & Screening Plant - Mineral Processing & Metallurgy,Methods used in Crushing & Screening Plants on ore range from a simple combination of a grizzly and one crusher to an elaborate arrangement in series of grizzly, jaw crusher, screens, and rolls or cone crushers.. Crushing is done underground at a few large mines. In general, the jaw crusher is the most suitable primary machine, yet many gyratories do the first breaking.Crushing | Screening | Material Handling | Crushers,,Crushing Tigers, based in Austin, TX, are distributors for some of the world leaders in the design and manufacture of Crushing, Screening, Breaking, Material Handling, Shredding and Recycling Equipment within the quarry, mining, landfill and waste management industries; Processing Aggregate, Coal, C&D Waste, Municipal Waste, Compost, Topsoil and Sand.