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Engineered to satisfy stringent AREMA and European rail standards, our top-tier welding powders, precision precast molds, and sealing media deliver continuous welded rail (CWR) joints with exceptional metallurgical integrity across Ontario's climatic extremes.
Thermal containment cover designed to retain exothermic reaction heat and suppress molten slag splatter during intense Canadian field welds.
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Ultra-refractory sealing compound formulated to eliminate steel leakage between rail web profiles and sand molds under high hydrostatic pressure.
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High-precision precast silica molds tailored for 115RE, 136RE, and Toronto Transit Commission (TTC) girder rail geometries with zero dimensional distortion.
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Calibrated aluminothermic powder blends engineered with micro-alloying elements for head-hardened rails, high-wear curves, and cold-weather toughness.
Explore Specifications →The Greater Toronto and Hamilton Area (GTHA) represents Canada's most critical multimodal transit and freight nexus. Massive transit expansions, high-tonnage freight corridors, and heavy industrial dockyards create an immense demand for reliable aluminothermic rail joining technologies.
With landmark initiatives including the Ontario Line, Eglinton Crosstown LRT, Finch West LRT, and the Hazel McCallion Line, Toronto is executing the largest public transit buildout in North America. Continuous welded rail (CWR) using defect-free thermite welding is vital to minimize passenger vibration, noise emissions, and wheel-rail interface wear in dense subterranean and elevated corridors.
Southern Ontario undergoes drastic seasonal temperature shifts ranging from -30°C in winter to +35°C in summer. These thermal swings generate severe longitudinal rail tension and compressive stresses. RMTS thermite welding powders are metallurgically balanced to match rail base steel toughness, preventing brittle fracture and winter pull-aparts.
Toronto's industrial arteries accommodate rigorous Class-1 traffic from Canadian National (CN) and CPKC, along with high-capacity container crane runways at the Port of Toronto and regional intermodal logistics parks. Aluminothermic welding provides rapid in-situ track repairs and maintenance without long network shutdowns.
RMTS is a premier manufacturer specializing in railroad thermit welding materials, based in Tianjin, China. With a factory spanning 5,500+㎡ and 30+ dedicated professionals, we are committed to delivering reliable and efficient thermit welding solutions to rail operators, transit contractors, and heavy industrial clients across the globe, including key transit networks across Canada.
Our products are designed to meet the highest industry standards, ensuring exceptional durability, strict metallurgical purity, and flawless mechanical performance under severe dynamic loading.
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 technical support to ensure seamless execution, no matter where the project is located.
Equipped with automated portion blending lines, high-temperature refractory pressing systems, and strict spectral analysis laboratories, RMTS guarantees batch-to-batch consistency and metallurgical perfection for every single weld portion exported worldwide.
RMTS's strong R&D abilities, coupled with extensive involvement in critical railway projects worldwide, demonstrate our commitment to providing cutting-edge thermit welding solutions that meet the specific demands of modern railway networks.
RMTS has a highly skilled R&D team that works tirelessly to ensure that we produce thermit welding materials that meet the specific metallurgical needs of each type of rail, including high-hardness UIC60, 136RE, 115RE, and custom grooved tram rail compositions.
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 extensive railway projects, RMTS contributes to the development and maintenance of high-speed rail, urban transit systems, and conventional rail lines, offering its thermit welding materials and services to ensure the integrity, structural resilience, and safety of rail infrastructure.
Furthermore, RMTS maintains partnerships with leading research institutions, universities, and industry experts in China. These strategic collaborations empower RMTS to continuously strengthen its R&D capabilities and pioneer breakthrough thermite technologies.
Explore our proprietary crucible systems engineered to provide optimal thermal insulation, auto-tapping precision, and zero-defect molten steel delivery for both high-density commuter lines and remote freight tracks.
Pre-lined with integrated automatic tapping thimbles, the Single-Use One Shot Crucible eliminates manual patching, minimizes pre-weld setup duration, and ensures 100% consistent chemical reaction conditions in demanding Canadian winter maintenance windows.
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Manufactured with premium magnesia-carbon refractory linings, our multi-use crucible technology withstands dozens of consecutive exothermic burns, offering unbeatable cost efficiency for high-volume yard welding depots and new track construction.
View Complete Tech Portfolio →Our main markets span railway main lines, seaport crane rails, subways, trams, and high-speed railways. Aluminothermic welding plays a crucial role in these fields. No matter the scenario, RMTS welding technology, with its excellent performance, serves as a powerful support for promoting industry development and ensuring operational safety.
Thermit portion, sand mold, luting sand, and ignitors are the core consumables required for aluminothermic welding. Each welded joint utilizes exactly one synchronized set of consumables to guarantee structural reliability.
For planning a 10 km track section with standard 12.5 m jointed rails to be converted into Continuous Welded Rail (CWR):
Our Toronto logistics desk coordinates buffer stocks of portion mixtures, luting sands, ignitors, and matching sand molds across Ontario, preventing construction downtime on time-sensitive Metrolinx track closures.
To achieve seamless joint finishing, RMTS supplies a comprehensive suite of internal combustion and hydraulic track machinery designed for rapid field mobilization, rail joint adjustment, weld shearing, and high-precision profile grinding.
RMTS is a passionate and progressive aluminothermic welding manufacturing company providing in-depth procedural guidance, training certifications, and strict quality control standards for Canadian railway maintenance teams.
Aluminum thermite welding, also known as aluminothermic welding or thermit welding, is a specialized welding technique that utilizes an exothermic chemical reaction between aluminum powder and iron oxides to generate superheated liquid steel (~2,500°C) for permanently joining rail sections without external electric power sources.
Preparation: Step 1. Ensure the rail ends to be welded are thoroughly cleaned, free from rust, grease, and moisture, and properly aligned horizontally and vertically. The gap size between the two rail ends shall be calibrated strictly to 26 ± 2 mm to ensure complete molten penetration.
Thermit welding materials will fail if contaminated with water or moisture. All welding consumables—including portion powders, sand molds, luting sands, and ignitors—must be kept strictly dry and protected against moisture during storage, pre-heating, and the pouring process.
Thermit welding requires careful handling and dry storage. Keep portion kits elevated on pallets in climate-controlled, well-ventilated storage depots to avoid condensation and chemical degradation before track deployment.
RMTS offers a wide range of thermit welding materials, such as welding kits, sand moulds, one-shot and long-life crucibles, luting sand, and high-temperature ignitors, ensuring consistent quality, superior fatigue resistance, and reliable performance across global networks.
Our certified field welding specialists deliver comprehensive on-site training and welding instruction programs to help clients master mold clamping, preheating torch calibration, slag containment, and profile grinding alignment.
Explore our complete range of certified aluminothermic consumables, precision molds, crucible accessories, and alignment clamps manufactured to support Toronto and North American railroad infrastructures.
Essential thermal management cover ensuring optimal crucible pressure and preventing heat loss during reaction ignition.
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High-grade refractory sealant paste preventing flash bleeding and mold run-outs on standard rail profiles.
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Precision bonded silica sand moulds ensuring tight tolerances, smooth surface finishes, and zero collar defects.
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Ultra-pure aluminothermic powder portion delivering homogeneous metallurgical bonds and superior wear resistance.
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Heavy-duty mechanical clamps providing uniform pressure distribution to secure sand molds firmly against rail web profiles.
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Fast-acting, moisture-resistant ignition rods ensuring instantaneous and dependable initiation of aluminothermic portions in all weather.
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Self-tapping disposable crucible system guaranteeing clean pouring, zero slag contamination, and rapid setup turnaround.
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Refractory magnesia lining compound engineered for exceptional thermal cycling resilience in multi-pour field operations.
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