Carbonitriding technology in ionic liquid TENIFER and ARCOR. PVD and PACVD coating. Slip sleeves for demanding applications. Salts and furnaces for heat treatment (quenching, annealing, tempering), protective pastes, blackening chemicals. Subsidiary company. HEF Groupe with technical support in the Czech Republic.

The company operates as a trade and service company in Eastern Europe. We are engaged in the sale of equipment for heat treatment of material (ovens, induction equipment, spare parts) and chemicals used for material protection. In our offer you can also find cutting lines.

Our company has been on the market since 2000. Previously under the name SDRUŽENÍ B-N. Our custom production specializes in products for production lines for the automotive industry. We provide service and modification in the form of innovation of existing production lines.

We offer induction hardening. We provide heat treatment of metal materials by induction technology. We provide medium and high frequency hardening, supply of technologies. We manufacture complete equipment, application machines, control systems. We provide refurbishment services. We sell copper tubes and more.

We deal with casting aluminium into sand and metal moulds. We produce sand cores. We perform tinning of castings. We also provide heat treatment. The company offers its clients sand and die casting, core production and heat treatment of products.

We are engaged in the manufacture of hot-formed steel forgings for automotive, construction, railways, agricultural and construction machinery. We are ISO TS 16949:2009 certified. We have spindle to crank presses, milling machines, ramming line and machining centers.

We offer heat and chemical-heat treatment of steels and other metals, consulting activities in the field of materials application and their heat treatment, refining, hardening in various hardening media including vacuum hardening, cementation and nitriding.

Perform vacuum surface treatments on plastic, metal and other non-porous materials. Lighting fixtures, costume jewelry, toys and more. We refurbish headlight parabolas. We service vacuum equipment and manufacture them according to customer requirements.

We manufacture die forgings. We provide machine forging of smaller die forgings from steels. We specialise in the manufacture of forgings in carbon and alloy steels, ranging in weight from 0.05kg to approx 6kg. We also heat treat forgings.

We are an engineering company with advanced experience providing a comprehensive range of services. We deal with steel structures, prepare production documentation, cut and cut materials (aluminium, iron), bend, round, weld, machine functional surfaces, paint and transport to the installation site.

Manufacture and sale of high and medium frequency generators and power supplies for induction heating, hardening, soldering and welding in a wide power range. Design and application of power electronics, industrial process automation.

We deal with heat treatment of metals. We provide simple bath hardening, vacuum hardening followed by freezing, cementation, vacuum annealing and more.

We are engaged in volume cold forming of metals using SCHMID technology. We manufacture parts for the automotive, furniture and armaments industries. We also provide CNC punching and forming, laser cutting and 3D measuring.

Our company offers hardening, vacuum tempering, nitriding, induction surface hardening high frequency, quenching in protective atmosphere, annealing.