Rolls are produced strictly according to customer-provided drawings and technical specifications, ensuring exact compliance with required tolerances, groove profiles, and fitment for seamless integration into existing mill stands. They are manufactured from premium tool steel grade X12MF (Russian GOST standard) or its direct international equivalent 1.2379 (D2), followed by advanced heat treatment to achieve surface hardness of HRC 58–63. This delivers exceptional wear resistance, high fatigue strength, resistance to chipping and cracking, and extended service life even under intensive production conditions. These rolls are optimized for the manufacture of: Water and gas pipes DN15–DN80 (GOST 3262-75 and equivalents) Round ERW tubes with outer diameter 10–108 mm Square and rectangular tubes 15×15 mm to 80×80 mm Kazakhstani producers offer supply as individual rolls or complete roll sets per mill stand and product size, along with optional custom roll design development, reverse engineering of existing rolls, and professional refurbishment/reconditioning services for worn rolls (regrinding, re-hardening, repair of damaged surfaces).
Inkar-1 LLP is a Kazakhstani manufacturing company operating in the field of mechanical engineering and metalworking, established in 1998 and located in Temirtau, Karaganda Region — one of the key metallurgical centers of the Republic of Kazakhstan. Since its foundation, the company has undergone continuous technological modernization and expansion of competencies, evolving from the production of spare parts and basic components to the manufacturing of complex high-precision assemblies and custom-designed equipment for industrial facilities. Inkar-1 LLP is a reliable supplier to major metallurgical enterprises, including Qarmet (formerly ArcelorMittal Temirtau), providing complete units and assemblies for sintering, blast furnace, steelmaking, and rolling production facilities. The company also manufactures non-standard equipment according to individual technical specifications for leading mining and underground extraction enterprises in Kazakhstan. The enterprise focuses on import substitution, reverse engineering of foreign equipment, and full-cycle production — from design and engineering to manufacturing and final assembly. Production processes are carried out using modern CNC equipment and supported by qualified engineering and technical teams, enabling the company to deliver turnkey solutions that meet the stringent requirements of heavy industry. Main product portfolio and services: Steel structures and welded products: – Conveyor equipment, slide gates, dampers, lifting beams (traverses), containers, and other heavy steel structures. Precision machining: – Turning, milling, grinding, gear cutting, and other CNC machining operations. Welding services: – Semi-automatic welding, TIG (argon arc) welding, and laser welding. Advanced metal processing: – Laser cutting, rolling and bending, painting, and protective coating applications. Custom engineering and manufacturing: – Engineering support, reverse engineering, prototyping, and assembly of non-standard industrial equipment and machine components. With more than 25 years of experience, proven expertise in executing complex industrial projects, and industry recognition — including the Presidential “Altyn Sapa” Award — Inkar-1 LLP contributes to the localization of industrial production in Kazakhstan, enhances equipment reliability under demanding operating conditions, and supports key sectors of the national economy, including metallurgy, mining, and heavy engineering.
Industrial engineering components
Electrical components and products