GROWING TO MEET REQUIREMENTS

The production of silica sand and quartz gravel as well as gravel and sand has a long tradition in our company. Over the decades we have grown together with the requirements of our customers from an increasing number of industries. Today, we are one of the leading manufacturers of mineral raw materials in Germany and are perfectly positioned to satisfy our customers’ wishes in the future.

1890

 

 

Production of building sand at the plant in Haida, near Elsterwerda

1924

 

 

Start of production of special sands such as filter sand and gravel, moulding sand, masonry and plaster sand and track sand

1950

 

 

Establishment of the Speyer gravel plant location

1954

 

 

Commissioning of the Linkenheim gravel plant

before 1960

 

 

Takeover of the plants in Haida, Kahla, Koschendorf and Saalhausen and merger with the publicly owned Cottbus construction materials combine

1970

 

 

Inauguration of the Hagenbach plant with rail connection

FROM 1971

 

 

Founding of Silex Normkies GmbH & Co. KG, which included plants in Linkenheim, Hagenbach and Speyer

1990

 

 

Founding of ZuS Zuschlagstoffe und Spezialsande GmbH, which included plants in Haida, Kahla, Koschendorf and Saalhausen, with the participation of Silex Normkies GmbH & Co. KG

1991

 

 

Takeover of ZuS by Silex Normkies GmbH & Co. KG

from 1991

 

 

Modernization of the plants in Haida, Kahla, Koschendorf and Saalhausen

1992

 

 

Commissioning of packaging Haida

1995

 

 

Commissioning of the new quartz sand drying plant in Haida, including quartz sand mill

1998

 

 

Certification according to DIN ISO 9001

2001

 

 

Takeover of the quartz plant in Quedlinburg

2002

 

 

Construction of a new plant in Hagenbach

2004

 

 

Planning permission for the deposit in Quedlinburg

2005

 

 

Merger of Silex and ZUS into WOLFF & MÜLLER Baustoffe GmbH

2005/2006

 

 

Set up of a new silica sand plant in Quedlinburg for the production of high-quality silica sand, especially for the glass and foundry industries

2007

 

 

Planning of another silica sand plant in North Rhine-Westphalia (NRW)

2008/2009

 

 

Commissioning of the vermiculite plant in Bulgaria

2012

 

 

Establishment of a second drying plant in Quedlinburg

2014

 

 

New sand dredgers at plants in Haida and Speyer

2014

 

 

Energy Management System (EnMS) – certification in accordance with DIN EN ISO 50001

2015

 

 

Use of four new wheel loaders

2016

 

 

Introduction of the online Silica Sand shop

2017

 

 

Start of wet extraction at the Quedlinburg plant

2017

 

 

Start of construction of drying plant III in Quedlinburg

2018

 

 

New internet presence in 2018