1.Brief introduction of QTZ-3 soil sampling drilling rig QTZ-3 soil sampling drilling rig is more humanized and more suitable for researchers in scientific research institutions or universities. The power is further strengthened, which can meet the requirement of soil sampling for 15-20 meters depth. 2.Applications of QTZ-3 soil sampling drilling rig ·Geotechnical engineering investigation; environmental soil survey; agricultural soil survey. ·Ground water survey; coastal geological survey; wetland environment investigation. ·Tailing pond investigation, archaeological investigation, physical chemistry and secondary halo sampling. 3. Technical parameters of QTZ-3 soil sampling drilling rig QTZ-3 soil sampling drilling rig Power power 3.8hp lighter way back flush pull rope oil consumption 0.6 l/h Impact times 2460 r/min Impact energy 35j-70j Core depth 15m-20m Host weight 26kg