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Engineered for seamless integration with Turkish 60E1, 60E2, 54E1, and 49E1 rail sections across Ankara, Istanbul, and Izmir high-speed railway corridors.
Unlocking modern continuous welded rail (CWR) potential across the Trans-Caspian East-West Middle Corridor and Turkey's 2053 Transport Master Plan.
The Republic of Turkey sits at the geopolitical crossroads of Europe, Asia, and the Middle East, serving as a critical artery of the "Middle Corridor" (Iron Silk Road). Under the vision of the Turkish Ministry of Transport and Infrastructure and the General Directorate of Turkish State Railways (TCDD - Türkiye Cumhuriyeti Devlet Demiryolları), Turkey is undergoing a historic transformation of its rail network. From upgrading the historic Ankara-Istanbul and Ankara-Sivas high-speed corridors (YHT - Yüksek Hızlı Tren) to the upcoming Halkalı-Kapıkule high-speed line linking Istanbul directly with the Bulgarian border and the wider European rail network, modern railway construction in Turkey demands exceptional joint integrity, thermal stability, and metallurgical consistency.
In continuous welded rail (CWR) tracks, rail joints are the most vulnerable stress concentration points. The dramatic topographical and meteorological variety across Anatolia—ranging from sub-zero continental freezes in Eastern Anatolia (Erzurum, Kars) to extreme summer temperatures and marine salt mist in the Mediterranean and Aegean coastal regions (Izmir, Mersin)—exposes rail welds to severe thermal expansion and contraction cycles. This requires reliable, high-purity aluminothermic welding materials manufactured to stringent EN 14730 European standards.
As a leading Chinese railway equipment and thermite material manufacturer, RMTS bridges advanced metallurgical precision with cost-effective manufacturing scale, providing Turkish engineering contractors with high-yield thermite portions, precision refractory sand moulds, and hydraulic maintenance machinery proven in mega-scale high-speed railway projects.
RMTS is a manufacturer specializing in railroad thermit welding materials, based in Tianjin, China. With a modern factory spanning 5,500+ m² and 30+ dedicated professionals, we are committed to delivering reliable, zero-defect thermit welding solutions to clients across the globe, including key infrastructure stakeholders in Turkey.
Our products are engineered to meet the highest industry standards, ensuring durability, impact resistance, and flawless fatigue life in diverse operating environments. 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.
Driven by a customer-centric approach, RMTS is dedicated to fostering long-term partnerships with Turkish railway contractors (such as TCDD sub-contractors, Kalyon, Yapı Merkezi, Cengiz, and Kolin) by delivering exceptional products and services tailored to the unique metallurgical and geometric needs of each project.
Leveraging two decades of metallurgical research and deep involvement in China's 45,000 km High-Speed Rail network to serve Turkish infrastructure upgrades.
RMTS has a highly skilled R&D team that works tirelessly to ensure that we produce thermit welding materials tailored to the exact chemical composition and hardness profiles of Turkish rail grades (R260, R350HT, UIC60, 54E1).
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 worldwide.
By participating in major railway projects, RMTS contributes to high-speed rail, urban transit systems, and conventional rail lines, offering thermit welding materials and services that ensure total track safety and structural integrity.
Furthermore, RMTS maintains partnerships with leading railway research institutions, national universities, and metallurgical specialists, continuously upgrading aluminothermic reaction thermodynamics.
Every batch of welding powder, sand mould, and ignition rod undergo 100% spectroscopic, ultrasonic, and dimensional inspection, guaranteeing zero slag inclusions and flawless molten steel flow.
We dispatch certified welding masters to Turkey to conduct practical hands-on welder certification, troubleshooting, and supervision, ensuring local maintenance crews achieve EN 14730 compliance.
High-precision execution of aluminothermic welding ensures continuous welded rail (CWR) structural integrity across high-axle-load and high-speed tracks.
Step 1. Rail End Preparation & Gap Alignment: Ensure the rail ends to be welded are thoroughly clean, free from rust, paint, oil, and moisture. The gap size between the two rails shall be precisely set to 26 ± 2 mm. Utilize bidirectional rail joint adjusters and straighteners to ensure horizontal and vertical crown alignment.
Step 2. Mould Installation & Luting: Position the two-part pre-formed sand mould symmetrically around the rail gap using precision mould clamps. Apply high-temperature luting sand along the mold seams to prevent liquid steel leakage during casting.
Step 3. Preheating: Utilize a specialized propane/oxygen or gasoline torch to preheat the rail ends to approximately 900°C–1000°C. This ensures complete fusion between the parent rail steel and the cast thermit steel.
Step 4. Reaction Ignition & Tapping: Place the crucible loaded with thermite portion onto the mould. Insert the high-temperature ignitor. The exothermic chemical reaction ($Fe_2O_3 + 2Al \rightarrow Al_2O_3 + 2Fe + \text{Heat}$) reaches over 2400°C. The self-tapping thimble releases purified molten steel into the weld cavity while the alumina slag floats to the slag tray.
Step 5. Shearing & Grinding: After controlled solidification, remove clamps and use a hydraulic rail shearing machine to remove excess weld metal while hot. Finish the weld profile using electric profile rail grinding machines to achieve a tolerance within ±0.2 mm of the parent rail.
Thermit portion, sand mould, luting sand, and ignitor are the main consumables for aluminothermic welding. 1 weld = 1 set of consumables.
For example, in a 10 km Turkish mainline track modernization using standard 12.5 m rail lengths:
*For continuous 25 m or 50 m CWR rail strings, calculations adjust based on planned turnout inserts, insulated joint bypasses, and transition zones.
Tailoring high-efficiency one-shot disposable crucibles and heavy-duty multi-use long-life crucibles for varied site conditions across Turkey.
Lightweight, environmentally friendly disposable design eliminating preheating, crucible maintenance, and cross-batch contamination. Ideal for rapid night maintenance windows in Istanbul and Ankara Metro tracks.
Manufactured with premium refractory magnesia lining and reinforced steel housing. Engineered to withstand 50+ repeated thermit reactions for extensive new line construction and high-volume switch fabrication yards.
Our main markets encompass railway main lines, seaport crane rails, subways, trams, and high-speed railways. Aluminothermic welding plays a crucial role across every industrial sector.
Mainline Track
Crane Rail
Metro & Light Rail
Seaport Terminals
High Speed Rail (YHT)
In Turkey, aluminothermic welding serves indispensable niches where mobile flash-butt welding trains cannot operate: specifically in turnouts and crossings (switches), tight metro tunnel curves (such as Istanbul's M1-M11 lines and Marmaray under-sea railway), expansion joint closures, and heavy-duty gantry crane rails at major maritime hubs including the Port of Mersin, Port of Ambarlı, Asyaport, and Safiport Derince. No matter the scenario, RMTS welding technology serves as a powerful support for promoting industry development and operational safety.
RMTS is a passionate and progressive aluminothermic welding manufacturing partner providing holistic engineering guidance.
Aluminum thermite welding, also known as aluminothermic welding or thermit welding, is a specialized exothermic technique utilizing a chemical reaction between metal oxides and aluminum powder to generate intense heat (>2400°C) for continuously joining heavy steel rail components without external electrical power sources.
Thermit welding materials will fail if contaminated with water or ambient condensation. Moisture during the reaction causes severe porosity, hydrogen embrittlement, and potential molten metal spatter. All welding portions, refractory moulds, and crucibles must be strictly shielded from moisture in storage and field operations.
Thermit welding materials require careful handling and storage. Portions and sand moulds must be stored off concrete floors on elevated wooden pallets in climate-controlled, dry warehouses (relative humidity < 50%). Packages should remain sealed until immediate pre-weld staging on site.
We offer a wide range of thermit welding materials, such as welding kits, sand moulds, one-shot crucible/long life crucible systems, luting sand, and high-temperature ignitors, ensuring consistent quality, exceptional microstructural bonding, and reliable performance across Turkey.
Explore our full line of aluminothermic consumables, rail cutting saws, profile grinders, tensioners, and joint adjusters available for direct export to Turkish infrastructure projects.
Answers to common inquiries by Turkish railway contractors, TCDD project managers, and port logistics engineers.
Yes. We supply fully customized thermite welding kits precisely formulated for European UIC profiles widely utilized in Turkey, including 60E1 (UIC60), 60E2, 54E1 (UIC54), 49E1, and crane rail sections (A75, A100, A120, QU120), matching hardness grades from standard R260 to head-hardened R350HT.
With decades of export experience, we manage dangerous goods (DG Class 4.1 ignition materials) compliance and containerized maritime logistics directly to major Turkish ports such as Istanbul (Ambarlı/Haydarpaşa), Izmir (Aliağa), and Mersin, providing full ATR certificate documentation and mill test reports.
Aluminothermic welding requires no heavy road-rail generator trucks or massive overhead electrical clearance, making it indispensable for underground metro tunnels in Istanbul, tight depot curves, turnouts, and quick nocturnal emergency track repair windows.
Yes. RMTS provides complete on-site technical instruction, sending senior welding engineers to conduct theoretical and hands-on welder qualification aligned with EN 14730 standards, covering mold clamping, preheating parameters, and ultrasonic test (UT) verification.
