Daftar Kol Kala Industrial Company (DKKI)
Daftar Kol Kala Industrial Company (DKKI), with more than four decades of experience and specialized activity in the steel, melting and metal casting industries, began its work in 1980 as an engineering consulting company. Its first mission was to review and finalize the engineering documents of the Khuzestan Steel Complex project and to supply the equipment needed to complete and commission that industrial complex, a valuable experience that laid the groundwork for the company's specialized activities in the following years.
In 1992, after completing a four-year technology transfer project, Daftar Kol Kala Industrial Company (DKKI) was established to expand its activities, relying on technical knowledge, specialized technologies and engineering capabilities, as the first and only regional manufacturer of disposable probes used in the metal melting industries. With more than 350 employees, the company operates in the Damavand 2 Industrial Zone.
DKKI's product range covers a wide variety of specialized equipment and tools used in the steel, foundry and metal melting industries. Disposable thermocouples, samplers, dissolved-oxygen measuring probes, sub-lances, carbon cups and other related tools and accessories are among the company's products. In addition, providing technical and engineering consulting services has always been an integral part of DKKI's activities, in response to the specialized needs of the industry.
Quality and Technology Development
Quality, accuracy and compliance with international standards are among the main pillars of Daftar Kol Kala Industrial Company's activities. The company's R&D unit, drawing on specialized knowledge and a continuous approach to improving products and processes, oversees the dimensional, mechanical and electrical conformity of its products with the requirements of reputable international standards, including IEC 60584, ASTM E230 and ASTM E1806.
These standards, together with continuous control of production processes and quality tests, form the basis for maintaining the quality, accuracy and reliability of the company's products.
Today, relying on its valuable experience, technical expertise and quality-oriented approach, Daftar Kol Kala Industrial Company is moving forward in developing and delivering specialized solutions for the steel, foundry and non-ferrous metal industries. The company's production and commercial activities are also organized within the framework of the ISO 9001 quality management system, an approach that reflects DKKI's commitment to continuous process improvement, higher product quality and effective response to the needs of customers and industry players.
Business Partners
Over the past years, Daftar Kol Kala Industrial Company has been the exclusive representative in Iran of the international companies below and, in addition to introducing and supplying their products, provides the technical and engineering support services its customers need. These companies complement DKKI's technical capabilities in the value chain of the steel, foundry and metal melting industries.
STEIN Injection Technology (SIT GmbH) since 1988
STEIN specializes in the design and manufacture of pneumatic conveying, dosing and injection systems for additives for the steel and foundry industries. The company's scope of activity ranges from consulting and planning to engineering, manufacturing, assembly, installation and commissioning supervision, and technical support.
In the metallurgical industries, STEIN injection systems are used particularly in electric arc furnaces and make it possible to inject materials such as coke and graphite for slag foaming, lime and dolomite for adjusting the chemical properties of the slag and protecting the refractory, and fine direct reduced iron (DRI). Materials are injected through side lances and, depending on the type of material and system design, the injection rate is adjustable.
Hundreds of STEIN conveying, dosing and injection systems are in operation around the world. The company is also certified to the DIN ISO 9001:2015 quality management system.
TML Technik since 1988
TML specializes in the design, development and manufacture of special machinery for harsh industrial conditions, particularly in the metallurgical industries. The company's products include hot-working refractory demolition machines (UNIDACHS), refractory demolition and repair machinery, drilling and cleaning machines, equipment related to refractory repairs, and furnace material-charging machines.
UNIDACHS machines, with a telescopic arm and full rotation capability, provide access to different points inside the furnace and ladle. These machines are designed so that refractory demolition and cleaning operations can begin at high temperatures, even before the furnace has fully cooled.
Different UNIDACHS models are offered in various capacities with a reach of up to about 10.5 meters, so as to suit the space limitations and varying needs of steelmaking workshops. This feature, while reducing furnace downtime, also helps protect the remaining parts of the refractory. TML charging machines are also used for loading materials into the furnace, handling materials, collecting slag and carrying out related operations.
GÜNTHER GmbH Temperaturmesstechnik since 2008
GÜNTHER has been active in industrial temperature measurement since 1968 and is one of the specialist manufacturers of thermocouples and resistance thermometers for industrial applications, particularly in the iron and steel industries. The company's core expertise is the design and manufacture of electrical thermocouples with metal or ceramic protective sheaths for accurate temperature measurement in a wide range of industrial applications. The protective sheaths are made of ordinary steels, heat-resistant steels and superalloys so as to withstand corrosion, wear and thermal shock. The company's thermocouples are manufactured and controlled in accordance with the requirements of the DIN EN 60584 standard, including the requirements for accuracy class 1. GÜNTHER also has a DAkkS-accredited calibration laboratory and can provide factory or DAkkS calibration certificates.
GÜNTHER products are widely used in the iron and steel industries, non-ferrous metals, glass, tile and ceramics, power plants, petrochemical industries, industrial furnaces and heat treatment processes.
Connex GmbH since 2013
Connex operates in High Current Technology and manufactures water-cooled cables and high-current busbars for electric arc furnaces and induction furnaces. The company's products are designed to carry very high electric currents in melting and industrial heating installations. The Connex product range includes flexible water-cooled cables with copper conductors, busbars and copper or aluminum bus systems with air- or water-cooling options, graphite electrode holder arms, chokes, and coaxial cables used in induction furnaces.
This equipment plays a vital role in the path of electrical power transmission from the transformer to the electrodes and in high-current installations. Its design focuses on reducing losses, controlling heat, and increasing operational stability and reliability. Connex has held DIN EN ISO 9001 quality management system certification since 2011.
Contessi S.r.l. since 2015
With a history of nearly a century, Contessi has been active since 1926 in process gas injection equipment for the iron and steel industries and is one of the specialist manufacturers of oxygen cutting equipment and related accessories for the steel industry. The company's products include manual and automatic oxygen cutting equipment, oxygen lances for opening ladle nozzles, billet and slab cutting machines, equipment for cutting thick steel sections, special torches for applications such as scarfing, air-gas torches used in preheating operations for continuous casting, and thermal lances for controlled cutting or demolition. This equipment is designed to operate under the harsh conditions of steelmaking processes and is used in various areas including furnaces, secondary metallurgy, casting, rolling and scrap preparation.