GROWING TO MEET REQUIREMENTS
The production of quartz sand and gravel as well as gravel and sand has a long tradition in our company. Over the decades, we have grown with the requirements of our customers from more and more industries. Today, we are one of the most important manufacturers of mineral raw materials in Germany and are ideally positioned to fulfil the customer requirements of the future.
Our development

New packaging machine & expansion of the packaging line

Change of name to WOLFF & MÜLLER Quarzsande GmbH

Start of construction of drying plant II Quedlinburg

Introduction of online trade quartz sand shop

Energy management system (EnMS)
Certification according to DIN EN ISO 50001

Use of new suction excavators
in the Haida and Speyer plants

Construction of the second drying plant in Quedlinburg

Construction of the new wet plant in Quedlinburg
for the production of high-quality industrial minerals/quartz sandstone, primarily for the foundry industry and construction chemicals

Silex / ZuS merger to form WOLFF & MÜLLER Baustoffe GmbH

Planning approval for the Quedlinburg deposit

New Hagenbach plant

Takeover of the quartz movement in Quedlinburg

Certification according to DIN ISO 9001

Commissioning of the new quartz sand drying plant in Haida

Commissioning of the Haida packaging plant

Modernisation of the Haida, Koschendorf and Saalhausen gravel works
Complete renewal of gravel and sand extraction and processing

Takeover of ZuS by Silex Normkies GmbH & Co. KG

Foundation of ZuS Zuschlagstoffe und Spezialsande GmbH
with the plants in Haida, Kahla, Koschendorf and Saalhausen

Foundation of Silex Normkies GmbH & Co. KG
with the Linkenheim, Hagenbach and Speyer plants

Opening of Hagenbach plant with railway connection

Transfer of the Haida, Kahla, Koschendorf and Saalhausen plants to the state-owned Cottbus building materials combine

Commissioning of Linkenheim gravel works

Construction of the Speyer gravel works site

Start of industrial sand production
Start of production of quartz sand as filter sand or gravel, moulding sand, plastering and masonry sand as well as brake sand for locomotives.
