cobra portable rock crusher will quickly grind your samples down to powder! dont carry rocks around with you all day if youre out prospecting for gold save your valuable time and energy this portable rock crusher can go anywhere, and is perfect for sampling! simply break up some rock, pulverize, pan the crushed material and in minutes search our inventory to find jaw crushers, impact crushers, cone crushers, cone crushing plants, jaw crushing plants, roll crushers, roll crushing plants, and hammermills. more crushers added daily from manufacturers such as caterpillar, case, john deere, komatsu, jcb, bobcat and more.jun 09, 2019 top diy rock crusher plans. ceramic barn-style diy bed structure with storage storage space rate is constantly at a costs in the bed room, so address your storage troubles by constructing this traditional pottery barn-style storage space bed.jaw crusher is a compression style rock crusher, useful in crushing the medium-hard to very hard material into a smaller particle size at primary crushing stage in the crushing circuit. applications mining, quarry, construction waste recycling, aggregate making, etc. materials limestone, cobblestone, cobblestone, quartz, basalt, iron ore, granite, shale, sandstone, gypsum, and a variety of ores.