On account of various factors the high-grade product quality of our sands and gravels recommends them especially for well sinking domestically and abroad. In particular the absence of organic impurities and the optimal rounded-edge shape make our silica sand and silica gravel the perfect raw material for open wells, driven wells, drilled wells and horizontal filter wells. Thanks to our many years of experience and state-of-the-art treatment methods the Quarzwerke Group has been able to support many successful projects in the field of well sinking. Through multiple washing operations and classification by screening technology we are able to meet the highest requirements. Our silica filter sands and silica filter gravels have been setting standards in the field of well sinking since time immemorial and have also made a contribution to the service life and performance of a wide range of wells. You can also benefit from this. Speak to us about the use of our products by your company!