Spain boasts one of Europe's most advanced and extensive railway networks, making it a critical market for high-quality thermit welding molds and aluminothermic welding solutions.
Spain's railway infrastructure is among the most impressive in the world. With over 15,000 kilometers of conventional rail and more than 3,800 kilometers of high-speed rail (AVE), the country ranks as the leader in high-speed rail length within Europe and second globally after China. This vast network demands continuous maintenance and expansion, creating a substantial and growing market for thermit welding molds and related materials.
The Spanish government, through its national railway operator Renfe and infrastructure manager Adif, has committed billions of euros to railway modernization. The Plan de Infraestructuras, Transporte y Vivienda (PITVI) outlines strategic investments in rail connectivity, including new high-speed corridors linking cities such as Madrid, Barcelona, Seville, Valencia, and Bilbao. Each of these projects requires thousands of rail joints to be welded using aluminothermic (thermit) welding technology, driving demand for precision-engineered OEM welding molds.
Furthermore, Spain's geographic position as a gateway between Europe and North Africa adds strategic importance to its rail infrastructure. The planned fixed link across the Strait of Gibraltar, if realized, would further amplify demand for reliable welding solutions capable of withstanding extreme environmental conditions.
The thermit welding process is indispensable for creating continuous welded rail (CWR), which eliminates gaps between rail sections and provides smoother, quieter, and safer train operations. In Spain, where high-speed trains regularly travel at speeds exceeding 300 km/h, the quality of rail joints is a matter of both safety and performance. OEM thermit welding molds must be manufactured to exacting tolerances to ensure that every weld meets the stringent standards set by European norms (EN 14730) and Spanish railway authorities.
Spain's industrial sector also relies heavily on thermit welding for crane rails in its major seaports — including Valencia, Algeciras, Barcelona, and Bilbao — which are among the busiest container ports in the Mediterranean. The heavy loads and constant movement of gantry cranes demand rail joints of exceptional strength and durability, making high-quality thermit welding molds essential for port operations.
The Spanish mining and steel industries, concentrated in regions like Asturias and the Basque Country, also utilize thermit welding for heavy-duty rail applications in industrial settings. These sectors require customized mold solutions that can accommodate non-standard rail profiles and challenging welding environments.
Over 3,800 km of AVE lines requiring precision thermit welds for safe operation at 300+ km/h.
Billions allocated under national transport plans for rail expansion and modernization through 2030.
Valencia and Algeciras rank among Europe's top container ports, requiring heavy-duty crane rail welding.
All thermit welds must meet strict European standards, demanding precision OEM mold manufacturing.
The Spanish railway sector is increasingly adopting automated welding monitoring systems that use sensors and IoT technology to track weld quality in real time. Digital twin technology is being explored by Adif to simulate rail behavior and predict maintenance needs, including weld integrity assessments. OEM mold suppliers must now integrate compatibility with these digital systems into their product designs.
Spain's commitment to the European Green Deal is driving investment in rail as a low-carbon transport alternative. The country aims to shift significant freight volume from road to rail by 2030, which will require extensive new track construction and maintenance. Thermit welding mold manufacturers are responding by developing eco-friendly formulations that reduce emissions during the welding process while maintaining structural integrity.
Spanish research institutions, including the Centro de Estudios y Experimentación de Obras Públicas (CEDEX), are collaborating with international partners to develop next-generation rail steels and welding compounds. These new materials promise improved fatigue resistance and longer service life, requiring corresponding innovations in mold design and thermit mixture composition from OEM suppliers.
Spain is a key node in the Trans-European Transport Network, with major corridors like the Mediterranean Corridor connecting Spanish ports to Central Europe. The completion of these corridors requires standardized, high-quality rail welding across borders, creating opportunities for OEM suppliers who can deliver molds compliant with multiple national and European standards simultaneously.
Cities like Madrid, Barcelona, Bilbao, and Seville are expanding their metro and light rail systems to accommodate growing urban populations and reduce traffic congestion. Madrid Metro, one of the longest metro systems in Europe, regularly requires thermit welding for track extensions and maintenance. Barcelona's Trambaix and Trambesòs lines are also undergoing expansion, creating localized demand for specialized welding molds.
The European Union Agency for Railways (ERA) is pushing for greater harmonization of technical standards across member states. For Spain, this means aligning its national welding specifications more closely with EN standards, which benefits OEM suppliers who already manufacture to European norms. This trend reduces barriers to entry for international suppliers while raising quality expectations across the board.
Spain's AVE network connects major cities at speeds exceeding 300 km/h. The precision demands of high-speed rail require thermit welding molds manufactured to tolerances of fractions of a millimeter. RMTS provides OEM molds specifically calibrated for the UIC 60 rail profiles commonly used on AVE lines, ensuring seamless joints that minimize vibration and noise at extreme speeds.
With Madrid Metro spanning over 300 km and Barcelona's system continuously expanding, urban transit represents a major application segment. The confined underground environments require compact welding setups and molds designed for tight-radius curves and limited clearance. RMTS's customizable mold solutions address these unique challenges while meeting the rapid turnaround times demanded by urban transit maintenance schedules.
As the busiest container port in the Mediterranean, the Port of Valencia handles millions of TEUs annually. The gantry crane rails at these facilities endure enormous dynamic loads and require welding joints of exceptional fatigue resistance. RMTS supplies OEM thermit welding molds designed for heavy crane rail profiles, ensuring reliable performance in the demanding coastal environment where salt spray and temperature fluctuations are constant challenges.
The mining regions of northern Spain maintain extensive industrial rail networks for ore transport. These applications often involve non-standard rail profiles and harsh operating conditions including heavy loads, steep gradients, and exposure to abrasive materials. RMTS offers custom OEM mold solutions tailored to these specialized requirements, helping Spanish industrial operators maintain safe and efficient rail infrastructure.
RMTS is a manufacturer specializing in railroad thermit welding materials, based in Tianjin, China. With a factory spanning 5,500+㎡ and 30+ professionals dedicated, we are committed to delivering reliable and efficient thermit welding solutions to clients across the globe. Our products are designed to meet the highest industry standards, ensuring durability and performance in various applications.
We understand that successful welding projects require not only high quality products but also expertise and knowledge. That's why we offer comprehensive on-site training programs to help our clients master the thermit welding process, enabling them to achieve optimal results and build a strong reputation in their respective fields. Additionally, our experienced team provides project welding instruction services, offering hands-on guidance and support to ensure seamless execution, no matter where the project is located.
Driven by a customer-centric approach, RMTS is dedicated to fostering long-term partnerships by delivering exceptional products and services tailored to the unique needs of our clients. Whether you are looking for reliable thermit welding materials, expert training, or project support, RMTS is your trusted partner in achieving welding excellence.
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Why Choose Us
RMTS have a highly skilled R&D team that works tirelessly to ensure that we produce thermit welding materials that meet the specific needs of each type of rail.
In addition to its strong R&D capabilities, RMTS actively participates in railway projects across China and abroad. The company collaborates with railway authorities, construction companies, and maintenance organizations to provide its expertise and materials for various projects.
By participating in railway projects, RMTS contributes to the development and maintenance of China's extensive railway network. Whether in high-speed rail, urban transit systems, or conventional rail lines, RMTS offers its thermit welding materials and services to ensure the integrity and safety of the rail infrastructure.
Furthermore, RMTS maintains partnerships with research institutions, universities, and industry experts in China. These collaborations enable RMTS strengthens its R&D capabilities in thermit welding technologies.
RMTS's strong R&D abilities, coupled with its involvement in railway projects, demonstrate the company's commitment to providing advanced thermit welding solutions that meet the specific demands of the railway industry. For the Spanish market, we are dedicated to understanding local requirements — from EN 14730 compliance to the unique challenges posed by Spain's diverse geography and climate — ensuring every OEM mold we deliver performs flawlessly in the field.


As part of the Phase 2 expansion of Jakarta's Mass Rapid Transit (MRT) system, RMTS was contracted to provide aluminothermic welding solutions for the new underground and elevated tracks. The project involved welding 600 rail joints across a 12-kilometer stretch, connecting key areas of the city to reduce traffic congestion.
Our team worked closely with PT MRT Jakarta to ensure the welds met international safety standards. The project was completed on time, and the new line has been operating smoothly since its launch. Jakarta MRT officials highlighted the durability of the welds, which have withstood the high frequency of train movements and tropical weather conditions.

The client faced the challenge of welding materials of T62 and P65 rails. The welding process needed to meet the rigorous standards set by the railway authorities, ensuring optimal track performance, longevity, and safety.
Our team collaborated closely with the client, thoroughly understanding their specific requirements. We provided them with our high-quality thermit welding materials, including welding kits, tailored to suit the T62 and P65 steel rail specifications.
The client expressed utmost satisfaction with our thermit welding materials. They acknowledged the superior quality, reliability, and technical support provided by our team. Our materials played a crucial role in enabling them to deliver high-quality rail construction projects and meet the demands of the railway industry.

KTMB Railways are aimed to improve connectivity across the city's suburbs. RMTS the most trusted supplier with 1000 aluminothermic welding materials for the new tracks, which included both underground and elevated sections. The project required precise welding to ensure smooth and safe operations, which serves millions of passengers annually.
RMTS's welding materials were chosen for their ability to create strong, seamless joints that could withstand the humid climate and heavy usage. The project was completed ahead of schedule, and the new line has significantly reduced travel times for commuters.