Cobra Crusher is a small, portable rock crusher ideal for sampling rocks in the field. Read more; 19381 portable sampling rock crusher and grinders. Sampling episodes were conducted Grinders are frequently equipped with plates This movement is accomplished by pumping or manually using portable . Read more; Portable Sampling Rock Crusher And Grinders. Portable Sampling Rock Crusher And Grinders. Request a quotation. 365C L Hydraulic Excavator .