HOLLOW-STEM AUGER HEAD WITH SEAL - CENTRAL MINE
CENTRAL MINE EQUIPMENT CO. Primary Class: 175/243. Other Classes: 166/326, 251/5,When drilling with hollow-stem augers, a center plug is normally used to prevent foreign material from coming into the bottom of the auger string. When a sample is to be taken, the center plug is removed and sampling tools are lowered through the hollow auger passage and beyond the head of the auger,Hollow Stem Auger Drilling Equipment | Products,,Intermediate vadose zone samples were collected using a Central Mine Equipment hollow stem auger drilling rig Model 75. Closure Report for Corrective Action Unit 394: Areas 12, 18, and 29 Spill/Release Sites, Nevada Test Site, Nevada: Revision 0. Five soil borings were advanced using hollow - stem auger drilling equipment . Sustainable Practices for Landfill Design and Operation. Fig. 8.3,Geotechnical Drill Rigs, Drilling Equipment-Central Mine,,Central Mine Equipment Company has been in business in St. Louis, Missouri since 1928. CME drilling rigs are mechanically driven multi-purpose machines with an emphasis on auger drilling. Each machine is custom designed to accommodate the drilling needs and preferences of the end user and can be mounted on skids, trailers, trucks, rubber tracks, or rubber tire ATV carriers.