1.The brief introductions of QTZ-3D portable electric soil drilling rig QTZ-3D portable electric soil drilling rig is an electric version of the QTZ-3 (gasoline engine) produced by Shandong Master Machinery Group Co., Ltd. The improvement of QTZ-3D electric soil drilling rig is mainly engine system. While QTZ-3 is equipped with gasoline engine, QTZ-3D is powered by electric. The QTZ-3D soil drilling rig selects pure copper winding two phase electric motor as a power source. The advantage of using the electric engine as the power source is its stability, and it can continuously improve the working efficiency with a certain kind of power operation equipment. It greatly improves the feed speed. In addition, QTZ-3D electric soil drilling rig is easy to operate, safe and stable, and can greatly reduce the labor force during the drilling operations. 2.The applications of QTZ-3D portable electric soil drilling rig ï¬geotechnical investigation ï¬environmental soil survey ï¬gricultural soil survey ï¬groundwater survey ï¬coastal geological survey ï¬wetland environmental investigation ï¬tailing pond investigation ï¬archaeological investigation ï¬physical chemistry exploration secondary halo sampling ï¬the description of soil structure 3.The specifications of QTZ-3D electric soil sampling drilling rig QTZ-3D portable electric earth drilling rig Voltage 220v Power 3.6kw Lighter way switch mode Energy dissipation low power consumption Impact times 2600min/m Impact energy 60j-79j Core depth 15m-20m Host weight 22kg