Stages of fibre optic cable production at the “Uteks” plant
13.06.2025
Fibre-optic cables (FOCs) are the backbone of modern telecommunications networks, providing high-speed data transmission over long distances. Chernihiv-based Uteks Ukraine Cable Plant is one of the leading producers of fibre-optic cables in Ukraine, with a 25% share of the national market.
In this article, we will take a closer look at the fibre optic cable production process at Uteks, focusing on the production stages and the use of modern technologies and equipment.
Stages of fibre optic cable production at “Uteks Ukraine”
Let’s take a look at how the production of fibre-optic cables begins and how the manufacturing process takes place at our enterprise.
1. Preparation of optical fibres
The production of fibre optics begins with the preparation of optical fibres, which are supplied in special reels exclusively from world leaders. At this stage, the fibres undergo a colouring process to facilitate identification during subsequent installation and maintenance. The dyeing is carried out in accordance with standards, ensuring bright and durable colours. 12 standard colours are used for identification.
2. Application of secondary coatings
After colouring, the optical fibres are covered with a protective sheath to ensure their mechanical stability and protection from external influences. This process involves the application of a polymeric material by extrusion, forming a protective tube around the fibre. Depending on the future application, power or moisture protection elements may be added at this stage.
For suspension cables, an important parameter is the excess length of the fibre. It is moulded to prevent the so-called “pulling in” of the fibre in the cable, so Utechs strictly adheres to production standards to ensure that the natural tension of the cable during operation is compensated for.
3. Forming of cable core (twisting)
At this stage, the optical fibres in the secondary coating are combined into a single cable core. The elements are laid in a specific configuration, and strength elements (aramid yarns, glass rods, etc.) are added to increase strength. For additional protection against moisture, a special industrial gel or water-blocking tapes are used.
The core forming process is controlled to ensure uniformity and compliance with technical requirements.
4. Overlaying the outer shell
The outer sheath protects the cable from mechanical damage, moisture and other external factors. It is made of durable polyethylene or other materials, depending on the purpose of the cable. Armour layers or other protective elements can be added to increase resistance to external influences.
Testing and quality control
After each of these stages, strict quality control is carried out in terms of a range of parameters, including tests for mechanical strength, optical characteristics, resistance to external influences and geometric parameters. This ensures that the products meet high standards and customer requirements.
Modern technologies and equipment at the “Uteks Ukraine” plant
“Utechs Ukraine constantly invests in the development of production equipment and technologies, which allows us to quickly adapt to market needs and fulfil complex individual orders. The implementation of process management helps to optimise production processes and increase efficiency.
Certification and quality standards
Uteks Ukraine pays special attention to the compliance of its products with international and national quality standards. The company is certified according to ISO 9001:2018, which confirms the effectiveness of the quality management system and focus on continuous process improvement.
In addition, the plant’s products have certificates that confirm the compliance of cable products with established technical regulations and standards.
Production capacity and achievements in numbers
“Uteks Ukraine” demonstrates impressive production and market presence:
- 6,000 km of cable per month: the company’s facilities allow it to produce significant volumes of products to meet customer needs.UTEX Ukraine+1 UTEX Ukraine+1
- 223 cable models: a wide range of products meets the diverse requirements of customers.
- 7 regional offices in Ukraine: an extensive network of representative offices provides prompt customer service throughout the country.
- Cooperation with 10 countries.
