Plant Herbede
Induction melting furnaces

Our high-quality steels are melted in our induction melting furnaces. The comparatively small melting-aggregate allows a high flexibility, which offers Friedr. Lohmann GmbH the opportunity to develop special programs for specific requests.

Moreover, induction furnaces have the advantage that the pre-determined analysis can be kept very precisely since only little evaporation and slagging of the allay-metals takes place.
Pre-sorted scap in high-grade steel, which is almost 100% recycable, forms the basis of the loead material; the fine-tuning of the melt-analysis takes place with ferrous alloys, highly available in alloy-metal, which are added in measured doses after the computer-assisted spectroscopic analysis.

ESR Plant

With our own ESR Plant, we have the capability of fulfilling the most demanding requests concerning the isotropy of the structure and the degree of purity of the respective qualities.

Forging Press

At the forging press, ingots are formed into material that is used in the steel metal-rolling factory and semi-finished products are deformed for the hammer factory or to steel  bars as finished products in different measurements and qualities. The two smith forging hammers (15 and 30 hundredweights) supplement the measurement pallet in the smaller sized areas.
Through efficient rotational hearth-, bogie hearth- and insertion furnaces, the steel is set to the appropriate forging temperature beforehand. Commonly controlled annealing-processes guarantee optimal delivery-structure and best machinability.

Plate grinding equipment

Fully automated high performance plate grinding equipment in a sound-proof workshop improves the grinding process and optimises the work flow.

Rolling mill

The customer specific sheet dimensions are produced in the company-owned hot rolling mill, paying particular attention to the respective instructions of the customers. In order to guarantee the highest quality, all sheets are produced by cross rolling. The delivery-condition for the customer-specific repeat processing is achieved through an annealing-process in a controlled atmosphere as well as through a flattening process. A thickness-tolerance control per ultrasonic device as well as a surface-control of each piece of sheet is part of the process of quality assurance before delivery to the customer.

Straightening, cutting and separating machines

Downstream straightening, laser cutting and separating machines produce sheet products according to increasing customer demands.

Special formats of strips and circles as well as special forms of tools are available through subsequent shearing-, sawing- and laser cutting processes of the sheets.

Stock

Computer-controlled high shelving for bar steel and sheets is just one piece in the mosaic of our long-term planning. Our customers have the advantage of shorter delivery times.