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PRECAST CONCRETE ELEMENTS146 CPI %u2013 Concrete Plant International %u2013 5 | 2025 www.cpi-worldwide.comModular technology and custom-made precast solutions for the client Duhalde: Moldtech has successfully completed a large-scale project in France with Duhalde Industries, specializing in the production of PAC4UF transformer substations. The objective: to design and supply an automated production line for the manufacture of reinforced concrete transformer substations in compliance with the very strict local regulations. This project strengthens Moldtech's position as a provider of comprehensive, customized, high-tech solutions in the European precast sector.Transformer substations play an essential role in mediumand low-voltage electrical infrastructure, providing a safe, resilient, and regulatory-compliant environment for the installation of transformers, medium-voltage switchgear, and auxiliary equipment. Their presence is common in industrial facilities, residential areas, agricultural operations, solar farms, and wind turbines, requiring versatile, reliable, and efficient construction solutions. Duhalde Industries was looking for precisely that: a production line capable of covering different configurations with high technical standards and a production capacity of 1,200 units per year.To meet this need, Moldtech designed and supplied a stateof-the-art production line, integrating all production systems into a continuous, automated, and safe process. The new industrial plant, a modern 5,000 m%u00b2 building, is equipped with the necessary equipment to manufacture strong and safe HTA/LV sheds: 3D moulds, covers, slabs, and more. Duhalde Industries operates completely autonomously thanks to its precast concrete plant. The production system is kept under control, from order receipt to delivery anywhere in France.1. 3D moulds for PAC4UF transformer substations (5 units)%u2022 Dimensions: 3.6 m (L) x 3.1 m (W) x 2.4 m (H).%u2022 Use: Comprehensive manufacturing of prefabricated transformer substations using a single concrete casting process.%u2022 Technical characteristics:%u2022 Modular design allows adaptation to different configurations.%u2022 High dimensional accuracy, facilitating the subsequent assembly of doors, grids, frames, and electrical systems.%u2022 Efficient opening and closing system, designed to optimize formwork removal and reduce waiting times between cycles.%u2022 Robust, reinforced steel structure capable of withstanding intensive production cycles.%u2022 Safety elements to protect operators during handling and maintenance.Operational advantages:%u2022 Significant reduction in production time per shed.%u2022 Uniformity in finishes and dimensions.%u2022 Greater durability and ease of maintenance. Complete line for the manufacture of electrical transformer substations in FranceMoldtech S.L., 41500 Alcal%u00e1 de Guadaira (Sevilla), Spain3D moulds for PAC4UF transformer substations