Engineering, Special Production

The company K. Oeltjenbruns engaged in the manufacture of laser parts and metal parts.
Next welded assemblies for the bulk materials handling systems for the automotive industry (truck parts) and special purpose machines are manufactured.
Processed stainless steel, aluminum, and steels including black in various grades.

Our company (Kohl Group, Poland) is a manufacturer of metal products from sheet metal forming method.
From the beginning, the company focused on the dynamic development and high quality of products and services.
At the moment we are working with companies such as Linde Fenwick, Volkswagen, ABB, Siemens, Deutsche Bahn, Evo Bus, Magna, ZF and others.

We have extensive fleet of machinery for sheet metal forming: modern CNC machines such as laser cutters, stamping presses (eccentric and hydraulic ), welding room, bending machines
We also have a modern welding shop min. robotic welding stations and positions for MIG-MAG and TIG welding.
Given our experience and capabilities, we offer you high-quality workmanship of products from steel sheets of black and galvanized, aluminum and stainless steel.

Our goal is to meet your expectations and requirements.
There we put our experience, qualified staff and a variety of machine.

Through functional at the control system, the quality-based on ISO 9001, ISO 3834-2 and ISO / TS 16949 and systematic training of employees, we guarantee high quality products and services.
I'll be grateful for the opportunity to submit more detailed company and our production capacity during the direct talks

We are a manufacturer of welding components and have been working together for years with companies such as Andritz Hydro, Siemens, GE, Alstom etc.
CNC cutting, welding, annealing, mechanical machining, sandblasting, painting and transport are processes that we can offer in the production of welding components.
Koncar steel structures (Koncar metalne konstrukcije) is located in Croatia, in the capital Zagreb.
We design scythe designs such as parts for hydro generators, base frames for turbines and many others for 20 years.
The technical knowledge and the experience represent our strength to assure our customers their requirements for a reasonable price.
Customers such as Andritz Hydro, Jeumont Electric, Alstom Power, Koncar Generators and Motors etc., are excellent "witnesses" of our performance and quality.
Certified welding processes for sheet thicknesses up to 250 mm as well as certified welders assure high quality products which are controlled by Level 2 and Level 3 inspectors.

KONMAK IND. INC has been producing marble machine productions on a large scale since 1980 and has thus acquired an extensive expertise in mechanical productions. Having based ourselves on the features demanded by large companies, we have created innovative, user-friendly applications that are now available to small and medium-size companies.



Our keen knowledge of the marble machine industry has helped us develop solutions that answer the needs of today’s clients. These solutions allow you to increase productivity, reduce operating costs and increase customer satisfaction. All of our marble machines are produced on CNC controlled workbenches which are designed by KONMAK’s R&D department. The machines are tested in KONMER-the brother company of KONMAK-to ensure the high quality. Also, we produce assembly and layout plan of the water clarification tanks which marble producers need.



We also provide concrete mixers which fit the European standards of abrasion resistance. Our concrete mixers are user-friendly and efficient. Besides, we also export cable machines to lots of countries such as Iran, Syria, Egypt, Sudan and Jordan.



Our products also include sail masts which are aesthetically pleasing and corrosion resistant. KONMAK is a major supplier of underground and pressure vessels, textile, food and chemistry sectors. Utilizing the latest manufacturing technology standard of ISO 9001-2000 EQA Quality Management System, KONMAK participates lots of national and international trading exhibitions.



Further to our information, please take a few minutes to visit our website: www.konmak.com. See how KONMAK’s marble machines can optimize your business. I invite you to contact us today so that we can discuss in details how we can help you.



Thank you for the interest you have shown in KONMAK!

Provider of

1 Steel construction, welded constructions

2 Conveyor systems (belt conveyors, steel slat conveyors, chain conveyors, special constructions)