Digital twins are emerging as a cornerstone technology in the framework of Industry 4.0, providing a transformative means to optimize manufacturing processes, enhance flexibility, and respond effectively to the dynamic changes in industrial environments.

Environmental policy has recently moved towards sustainable development in all areas. Therefore, efforts are being made to find sustainable solutions in hydraulics. One of these solutions is the use of water instead of hydraulic oil in hydraulics (power control hydraulics – PCH).

Modern manufacturing is rapidly evolving, with agile and green companies shaping the future. These firms need new methodologies to streamline planning and navigate the complexities of Industry 4.0 technologies. The proposed methodology offers a step-by-step guide to transitioning from initial challenges to implementing smart factories with digital twins, enhancing competitiveness and fostering innovation.

The permanent magnet synchronous machine (PMSM) is most commonly used machine in high-efficiency electric drives. High efficiency can be achieved by optimization of PMSM construction and by appropriate control algorithm which achieves the optimal working point conditions, where the most used algorithm is the Maximum Torque Per Ampere (MTPA).

Despite the fact that water is rarely used in power-control hydraulics (PCH), advanced technologies such as 3D printing of metal components are opening new possibilities for the wider adoption of water PCH. With metal 3D printing, valve mass can be significantly reduced while improving flow characteristics, thanks to the ability to produce complex internal geometries not achievable with traditional methods.

Current energy policies focus on transitioning from fossil fuels to renewable energy sources, whose main drawback is their intermittency. To address this challenge, seasonal thermal storage systems are being developed, enabling the storage and use of heat over extended periods, typically several months or even an entire season.

In a modern industrial environment, manufacturing facilities include various systems and processes, such as assembly, welding, machining and cutting, which are used to produce parts and finished products. With the world’s transition to sustainable practices, encouraged by global and European regulations, companies need to align their operations to achieve sustainable development goals.

Engineering polymers have proven to have very promising tribological properties and successfully follow high-performance thermoplastics. In our research, we tested and analyzed polyoxymethylene (POM) for the very demanding operating conditions of hydraulic on/off valves.

In the modern business environment, companies increasingly recognize the importance of automation and digitalization of production and logistics processes. This article presents the comprehensive transformation of production and intralogistics processes at the Herbarium company.

In this article, we present the creation of a computer program for predicting the required heat for air reheating in a mechanical ventilation system. The process of creating a computer program is shown, which is based on the hourly change of the outside air temperature and the operating schedule of the ventilation device.