Friedr. Lohmann GmbH Edelstahlgießerei

Brauckstr. 37, 58454 Witten
Germany
Telephone +49 2302 8906-0
Fax +49 2302 8906-30
guss.info@lohmann-stahl.de

Hall map

THERMPROCESS 2019 hall map (Hall 9): stand E04

Fairground map

THERMPROCESS 2019 fairground map: Hall 9

Our range of products

Product categories

  • 01  Industrial Furnaces, Industrial Heat Treatment Plants and thermal processes for
  • 01.08  Steel and Iron
  • 01.08.03  Heat treating
  • 01.08.03.03  Hardening and tempering

Hardening and tempering

  • 01  Industrial Furnaces, Industrial Heat Treatment Plants and thermal processes for
  • 01.08  Steel and Iron
  • 01.08.03  Heat treating
  • 01.08.03.05  Annealing

Annealing

  • 01  Industrial Furnaces, Industrial Heat Treatment Plants and thermal processes for
  • 01.08  Steel and Iron
  • 01.08.03  Heat treating
  • 01.08.03.07  Hardening

Hardening

  • 01  Industrial Furnaces, Industrial Heat Treatment Plants and thermal processes for
  • 01.08  Steel and Iron
  • 01.08.03  Heat treating
  • 01.08.03.11  Case hardening

Case hardening

  • 01  Industrial Furnaces, Industrial Heat Treatment Plants and thermal processes for
  • 01.08  Steel and Iron
  • 01.08.04  Diffusion processes
  • 01.08.04.03  Gas carburizing

Gas carburizing

  • 01  Industrial Furnaces, Industrial Heat Treatment Plants and thermal processes for
  • 01.08  Steel and Iron
  • 01.08.04  Diffusion processes
  • 01.08.04.04  Low pressure carburizing (LPC)

Low pressure carburizing (LPC)

  • 05  Consulting, design, service and engineering

Consulting, design, service and engineering

Our products

Product category: Consulting, design, service and engineering

Melting ingots

Contract melting is carried out in the induction furnace. One advantage is the batch size of approx. 6.5 tons. This allows us to react flexibly to our customer's wishes and produce smaller quantities economically. To further process the melt, we have a vacuum degassing plant (VD/VOD) as well as an ESR plant. We have molds in the widest possible range of sizes and shapes available. You will find more detailed information in our mold format list. If you have special requirements, we can expand our inventory of molds at any time. Our ingots can be delivered hot if required. We can also deliver annealed ingots from our heat treatment furnaces.

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Product category: Consulting, design, service and engineering

ESR plant

Contract re-melting starting format: Electrode with an approx. Ø of 300 mm, weight approx. 1250 kg, provided by us if required. ESR block format: Ø 400/380 mm x 1250 mm

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Product category: Consulting, design, service and engineering

Contract rolling

On our rolling mill, we are able to roll a wide variety of semi-finished goods on a contract basis. Thicknesses from 1.0 mm to 22 mm are included in the standard program, depending on the semi-finished goods delivered to us. For such jobs, exact coordination is necessary prior to melting to ensure an optimal result meeting the customer's requirements.

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About us

Company details

Now in its 7th generation, the family business Friedr. Lohmann GmbH, manufacturers of special steels, is run today with the same commitment shown by previous generations. The company´s two traditional locations, Herbede and Annen, have evolved from the "steel factory" founded in 1790 in Witten by Johann Friedrich Lohmann. Today, the company has approximately 350 employees.
As a manufacturer of High Speed Steel, Tool Steel and Special Steel grades and abrasion-resistant specialty steel and heat-resistant castings, LOHMANN has achieved worldwide significance. The long established special steel factory is closely linked with the industrial development of the town of Witten and its surroundings. High-performance equipment, environmentally-friendly production processes and well-trained, motivated specialist teams together with a quality management according to DIN EN ISO 9001 are the guarantors for the high standard and quality of our products and for ensuring ongoing development processes.
The implementation of an environmental management system (DIN EN ISO 14001) reflects the company´s strong commitment to protecting and improving the environment. Our commitment to Health and Safety makes us an attractive employer. To ensure that this remains a priority, we have introduced a professional work safety management system, for which we have been awarded the "Sicher mit System" (Systematic Safety) seal of approval by the "Berufsgenossenschaft Holz und Metall" (professional body for companies in the wood and metal industries). Our company is recognized by the Chamber of Commerce as a certified apprentice training company. A certified risk management system has been introduced in accordance with the German Corporate Sector Supervision and Transparency Act (KonTraG).
Company policy which is marked by ongoing investments, continual improvements and innovative processes, is aimed at ensuring the company has a bright and stable future.

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