Loesche

Loesche GmbH is a German engineering and equipment company whose principal business is the design, manufacture and servicing of vertical roller mills. Its equipment is used to grind coal and other solid fuels, cement raw materials, cement clinker, granulated blast-furnace slag, industrial minerals and ores. The company also supplies associated process equipment, including dynamic classifiers, hot-gas generators, compact and mobile grinding systems, and automation and optimization solutions. The business began in Berlin in 1906, when engineer Curt von Grueber established a technical bureau for the design and sale of Kent mills. The early company served the cement and phosphate industries and later expanded into broader cement-plant machinery, including crushers, screw conveyors, rotary grate kilns and Maxecon mills. In 1912 it started manufacturing in its own facilities. Ernst Curt Loesche joined the company that year, became a partner in 1919, and gradually assumed operational control. In 1927 he developed the first mill associated with the Loesche name for the Klingenberg power station in Berlin. He acquired Curt von Grueber’s remaining interest in 1937 and became the company’s sole owner. The company’s development was shaped by the industrial and political upheavals of twentieth-century Germany. During the post-First World War downturn in the cement industry, Loesche maintained activity by supplying mills to coal-fired power stations. During the Second World War, production was redirected in part toward armaments for the German war effort, and the Berlin-Teltow works suffered severe damage in 1943. After the war, Soviet occupation authorities dismantled and removed machinery from the Teltow plant. Ernst Curt Loesche and former employees subsequently rebuilt the business in Düsseldorf in 1948 under the name Loesche Hartzerkleinerungs- und Zementmaschinen KG. Following his death later that year, his son Ernst Guenter Loesche led the company through postwar reconstruction and expansion. Under Ernst Guenter Loesche, the company re-established manufacturing, including at Neuss, and developed a stronger position in grinding technology. He retired in 1983 after approximately 35 years as managing director. Dr. Thomas Loesche then represented the third generation of family management. In 1992 the company moved into a larger office building on Hansaallee in Düsseldorf. A severe crisis followed the 1997 economic collapse in Southeast Asia, but rationalization measures and new product and business initiatives helped the company recover. Loesche’s business is international rather than limited to its German base. Its operations have included subsidiaries in Europe, Asia, Africa, North America and South America, alongside agents in more than 30 countries. The company has also pursued adjacent capabilities. It established Loesche Automation GmbH in 2008 to distribute and further develop industrial automation products for crushing plants. In 2012 it entered into a close cooperation with Austrian pyroprocessing specialist A TEC Holding GmbH. In 2013 it opened subsidiaries in Jakarta and acquired majority stakes in the Aachen-based engineering companies aixprocess and aixergee, expanding its process simulation, alternative-fuel, emissions-reduction and plant-optimization capabilities. Loesche remains positioned as a specialist supplier of energy- and process-efficient grinding systems for heavy industry. Its products are typically sold as engineered systems or plant components rather than as consumer-facing branded goods. Publicly available reference material identifies more than 400 employees in Germany and approximately 850 worldwide, although staffing may change over time. No public stock listing or ticker is identified in the supplied material.

Loesche traces its origin to 1906, when Curt von Grueber founded a Berlin technical bureau concerned with the design and sale of Kent mills. The early enterprise supplied equipment to cement and phosphate producers. In 1912 it began making machinery in its own plants, initially in Berlin-Hohenschönhausen and later in Berlin-Teltow. Its portfolio broadened to include Maxecon mills, Hauenschild rotary grate kilns, crushers, screw conveyors and other cement-production machinery. Ernst Curt Loesche joined the business as an engineer in July 1912 and became a partner in 1919. During the prolonged crisis affecting Germany’s cement sector after the First World War, the company found important work supplying mills to coal-fired power stations. In 1927 Loesche developed a mill for the Klingenberg power station in Berlin-Rummelsburg, an important step in the development of the company’s own mill technology. In 1937 Ernst Curt Loesche purchased Curt von Grueber’s interest and became sole owner. The Second World War disrupted the company’s industrial development. Like other German machinery manufacturers, it was required to undertake armaments production, and the Reich Air Ministry became a major customer. An air raid in 1943 heavily damaged the Teltow works. At the end of the war, Soviet occupation authorities dismantled the remaining machinery and transported it to the Soviet Union. The enterprise nevertheless resumed work with outdated equipment. In 1948 Ernst Curt Loesche and former Berlin employees rebuilt the business in a damaged building in Düsseldorf. The reorganized company operated as Loesche Hartzerkleinerungs- und Zementmaschinen KG. Ernst Curt Loesche died unexpectedly in November 1948, after which his son Ernst Guenter assumed leadership. During the 1950s the company reconstructed its operations and established its own manufacturing facility in Neuss. Ernst Guenter Loesche remained managing director for roughly 35 years before retiring in late 1983. The third generation of family management was represented by Dr. Thomas Loesche. In 1992 the company moved to a larger office building on Hansaallee in Düsseldorf. The 1997 financial crisis in Southeast Asia created a serious business crisis for Loesche, but the company responded with new initiatives and rationalization measures and subsequently recovered. In the twenty-first century, Loesche broadened its activities beyond core mill supply. Loesche Automation GmbH was founded on 1 August 2008 to distribute and develop industrial automation products for crushing plants. In 2012 Loesche entered into a close cooperation with A TEC Holding GmbH, an Austrian specialist in pyroprocessing. In 2013 the company opened two new subsidiaries, including one in Jakarta, Indonesia, and acquired majority stakes in aixprocess GmbH and aixergee GmbH of Aachen. These businesses added expertise in process modeling, alternative-fuel firing, emissions reduction, performance improvement and the stabilization of industrial plant operations. The company’s principal business remains vertical roller-mill technology. Loesche mills are used for cement raw materials, clinker, blast-furnace slag, coal and other solid fuels, ores and industrial minerals. Its international structure has included subsidiaries in multiple continents and representatives in more than 30 countries. The supplied reference describes the company as owner-managed, with more than 400 employees in Germany and approximately 850 worldwide.

• 2013

  International and engineering-capability expansion

  [1]Loescheen.wikipedia.org

  Loesche opens a Jakarta subsidiary and acquires majority interests in aixprocess and aixergee.

• 2008

  Loesche Automation GmbH founded

  [1]Loescheen.wikipedia.org

  A subsidiary is established for industrial automation products used in crushing plants.

• 1992

  Move to a larger Düsseldorf office

  [1]Loescheen.wikipedia.org

  Loesche relocates to a larger office building on Hansaallee in Düsseldorf.

• 1948

  Reconstruction in Düsseldorf

  [1]Loescheen.wikipedia.org

  After the Berlin works are expropriated, the business is rebuilt in Düsseldorf as Loesche Hartzerkleinerungs- und Zementmaschinen KG.

• 1937

  Ernst Curt Loesche becomes sole owner

  [1]Loescheen.wikipedia.org

  He acquires Curt von Grueber’s remaining share in the company.

• 1927

  Loesche mill developed for Klingenberg power station

  [1]Loescheen.wikipedia.org

  Ernst Curt Loesche develops a mill for the Klingenberg power station in Berlin.

• 1919

  Ernst Curt Loesche becomes a partner

  [1]Loescheen.wikipedia.org

  Ernst Curt Loesche moves into ownership and management as a partner in the business.

• 1912

  In-house manufacturing begins

  [1]Loescheen.wikipedia.org

  The company starts manufacturing equipment in its own facilities, while Ernst Curt Loesche joins as an engineer.

• 1906

  Curt von Grueber establishes the predecessor business

  [1]Loescheen.wikipedia.org

  A Berlin technical bureau for the design and sale of Kent mills is founded, forming the basis of the later Loesche company.

A family-owned, internationally active specialist in vertical grinding and process engineering for cement, power generation, minerals and other heavy industries. The brand emphasizes engineered plant solutions, operational reliability, process optimization and the ability to provide equipment service and related automation capabilities.

• Cement production equipment · 1930

  Vertical roller mills for cement raw materials

  Loesche supplies vertical roller mills for reducing cement raw materials to the fineness required for kiln-feed production. The range includes configurations with two, three, four and six rollers. The company states that such mills were introduced for cement raw-material grinding in the 1930s, making this one of its foundational product areas.

• Cement and minerals grinding equipment · 1935

  Cement clinker and blast-furnace-slag mills

  These vertical roller mills process cement clinker, granulated blast-furnace slag and materials used in composite cements. Loesche records an early clinker-grinding application using a mill with a 1.1-metre grinding-track diameter in 1935. The systems are intended for continuous industrial operation and integration into larger cement plants.

• Power and fuel-processing equipment

  Solid-fuel grinding mills

  Loesche vertical mills grind coal and other solid fuels for use in power generation and industrial combustion processes. The company’s coal-grinding heritage also helped it remain active during periods when cement demand was weak, particularly through supply to coal-fired power stations.

• Containerized grinding plant

  CGPmobile

  CGPmobile is a containerized coal-grinding plant designed as a compact, transportable solution. It reflects Loesche’s effort to provide modular grinding capacity rather than only permanently installed, large-scale mill systems.

• Mobile ore-grinding plant

  OGPmobile

  OGPmobile is a mobile plant concept for ore grinding. It extends Loesche’s vertical-mill expertise into transportable mineral-processing applications where modularity and deployment flexibility are important.

• Large vertical roller mill

  LM 70.4+4

  The LM 70.4+4 is identified in the reference material as one of Loesche’s vertical roller mill models. It represents the company’s large-capacity mill range for demanding industrial grinding applications.

• Mineral-processing equipment

  Ore and industrial-mineral mills

  Loesche develops vertical roller mills for ores and industrial minerals, adapting its grinding technology to mineral-processing requirements beyond cement and fuel preparation.

• Mill auxiliary equipment

  Dynamic classifiers and hot-gas generators

  Dynamic classifiers and hot-gas generators are supplied as associated components for grinding systems. Classifiers help control product fineness, while hot-gas generators support drying and thermal process conditions in mills handling moisture-bearing feedstocks.

• 2013

  Acquisition of majority stakes in aixprocess and aixergeeM&A

  Background

  Loesche aimed to strengthen process engineering and optimization capabilities for cement and power-plant applications.

  Action taken

  It acquired majority stakes in Aachen-based aixprocess GmbH and aixergee GmbH.

  Aftermath

  The transaction added expertise in process simulation, alternative-fuel firing, performance improvement, emissions reduction and plant-operation stabilization.

  Source

• 2012

  Cooperation with A TEC HoldingStrategy

  Background

  Loesche pursued closer integration with expertise in pyroprocessing, an important neighboring discipline in cement production.

  Action taken

  The company entered into a close cooperation agreement with Austrian specialist A TEC Holding GmbH.

  Aftermath

  The cooperation expanded the technical relationship between grinding and pyroprocessing capabilities.

  Source

• 2008

  Creation of Loesche Automation GmbHStrategy

  Background

  Loesche sought to extend its offering into industrial automation for crushing plants.

  Action taken

  It established Loesche Automation GmbH to distribute and further develop automation products.

  Aftermath

  The move broadened Loesche’s activities beyond mechanical mill equipment into controls and automation.

  Source

• Unconfirmed

  Reported2021.11.24

  Loesche acquires Dynamis[2]Loesche收购Dynamiscemnet.com

  Loesche said that Brazil-based Dynamis had joined its group. The source does not specify when the acquisition occurred.

Read more

1. 1Loescheen.wikipedia.org
2. 2Loesche收购Dynamiscemnet.com