Company profile Roth Composite Machinery GmbH

As medium-sized owner-managed company, Roth Composite Machinery GmbH resulted from the merger of the two affiliated companies of Roth Industries EHA Composite Machinery, Steffenberg, and Schlesinger Maschinenbau, Burgwald, in June 2016.

Within the scope of a reorganization, Roth Industries combines related business areas of the two fields building and industrial technologies and focuses the professional expertise on six divisions. By this, Roth Industries is changing from a group of companies with different trademarks to a homogenous unit with a brand image in one package. Basis and initiator is the business family Roth. All divisions are operated under the trademark Roth in future – it is the “face” of our family company and shows global identity.

Roth Composite Machinery represents the division Composite Technology and is an expert in the field of special machinery construction.

 For over 50 years, the range of products comprises components, machinery and equipment for the manufacture of high-quality and particularly strong plastic products for light-weight applications by uisng the Filament Winding process, especially for the automotive and sports industries, the aerospace sector as well as for wind energy stations. By the mentioned machinery and equipment, synthetic or thermoplastic resin materials with reinforcing fibres, mainly glass or carbon fibres, are processed.

The company also plans, designs and manufactures complete production lines.

By using Prepreg Plants, semi-finished composite materials are produced. Due to the pre-impregnated (hence the name “Prepreg”), partly cured and thermoplastic matrixes, these materials can be processed to finished products in later working steps.

By the manufacture of Coating and Impregnation Lines for the processing and finishing of web-shaped products such as paper, foil, laminate and fabrics, Roth Composite Machinery offers tailor-made solutions according to customer’s specifications.


Pleating machines for filters are another segment in the product program. The produced filters are used in the automotive industry as well as in the areas aerospace, hydraulics, ventilation and medical technologies. This product range comprises mechanically and electronically controlled knife pleating machines as well as suitable peripheral systems.

For more than nine decades Roth Composite Machinery, Burgwald – previously known as Schlesinger Maschinenbau – manufactures plants for the production of brushes and brooms for household and industry applications. They started in 1919 with the production of a patented multiple-spindle brush wood drilling machine. There hardly is a country in this world where no machine from Burgwald is found.



1919 Friedrich Schlesinger established the company Schlesinger in Schönheide/Erzgebirge.
1930 First semi-automatic brush-making machine of Schlesinger.
1940 First machine with punched tape control of Schlesinger.
1951 Relocation of the production of Schlesinger to Burgwald-Industriehof.
1960 Development of a fully automatic 1-tool machine / carrousel machine at Schlesinger.
1977 Takeover of the company Schlesinger by Roth Industries GmbH & Co. KG.
1979 First use of an electronic positioning system at Schlesinger.
1994 First 4-tool carrousel transfer machine.
2010 Development of a new filling tool for the brush-making machines: RoAn technology.
2011 Design of a mechanically controlled knife pleating machine at Schlesinger.
2012 Development and prototyping of a servo-controlled knife pleating machine.
2013 Development of the Minipleat systems. Introduction of the ERP system R3 EEC of SAP at Schlesinger.
2015 Variant and aggregate developments for pleating production lines.
2016 Development of a pleating line with rotary systems.

Bolenz & Schäfer + EHA

1933 Foundation of the company Bolenz & Schäfer in Dortmund.
1943 Start of the production in Eckelshausen.
1963 - 1965 Start of the development and delivery of the first FW Machine.
1979 First use of a CNC control in a FW Machine of BSD.
1983 Foundation of the engineering office EHA (Erich Hanßmann, Angelburg).
1988 First FW Machine with 6 programmed motion axes.
Design and manufacture of coating lines.
1988 First integration of a tape laying head with 7 axes and a 6-axes FW delivery head into one machine. The plant is able to move 13 axes simultaneously and coordinately.
The number of machines exceeds 200.
Bolenz & Schäfer is integrated into Roth lndustries.
1990 First complete impregnation line.
1991 First UDCF Prepreg Plant for sporting goods.
1995 Takeover of EHA by Roth lndustries and continuation under the company name EHA Spezialmaschinenbau GmbH.
1999 Integration of the mechanical engineering activities of Bolenz & Schäfer (Composite Technology) into the affiliated company EHA Spezialmaschinenbau GmbH. Integration der Maschinenbauaktivität (Composite Technology) into the affiliated company EHA Spezialmaschinenbau GmbH.
2000 QM System according to ISO 9000 ff.
2001 World’s first fully automated FW Plant for the manufacture of pressure vessels for gases.
2002 World’s largest plant for FW technology (for Ariane V rockets).
2003 Delivery and commissioning of the world’s largest plant for the winding of rotationally symmetric parts for the aerospace industry.
2004 Introduction of SAP / R3 with PS.
2005 Development, project planning and delivery of the world’s first plant for the mass production of butane gas tanks by using glass fibres and thermoplastic matrix.
2007 More than 400 Composite Machines have been built.
2008 High-efficiency Prepreg Plant for the impregnation of carbon fibre papers for fuel cells.
2009 Delivery and commissioning of a fully automatic production line for high-voltage insulation pipes – the world’s first plant of this configuration.
2010 Universal Laboratory Prepreg Plant (semi-finished products made of carbon fibres for automotives).
2011 Change of the name EHA Spezialmaschinenbau GmbH to EHA Composite Machinery GmbH.
2012 Fully automated FW production cell (automation for more variable products, pre-processing …)
2013 Material productivity increase: Processing ability of 60 K fibres when having an impregnating speed of 2 m/s.
2014 Development of a Prepreg Plant also for thermoplastic materials with working temperatures of up to 380 °C.
2016 Takeover of the filament winding activities of Waltritsch & Wachter by EHA.

Roth Composite Machinery GmbH

2016 Merger of EHA and Schlesinger as well as transition to Roth Composite Machinery GmbH.
Common further development of the entire added value system.