Industrial-scale fabrication of structural steel backing clad with high-chromium alloy weld overlays. Perfect for severe abrasion and medium impact environments.
See more products>
Specially engineered flux-cored wire optimized for open-arc welding. Formulated to deposit high-density chromium carbide matrices without gas shielding.
See more products>
Heavy-duty welding wires designed for surfacing wear surfaces in steel plants, cement mills, and mining chutes. Superior resistance to high-stress grinding.
See more products>
Dual-layer structural compound containing rich, hexagonal chromium carbide crystals aligned perpendicular to the direction of abrasive wear flow.
See more products>
Runxing RX-m Series specifically engineered for heavy mining chutes and cement liners. Built to survive extreme rock impact combined with heavy grinding.
See more products>
Composite material wear plate made of structural steel backing and hard weld surfacing. RX®wp 7600 corresponds strictly to industrial DIN 8555 standards.
See more products>
High chromium-rich alloy wires developed to resist intense particle abrasion. Ideal for automated rebuilding of grinding rollers and high-stress steel guides.
See more products>
Advanced hardfacing overlay using high chromium-carbon chemistry designed to combat high-stress crushing and complex sliding wear with low impact.
See more products>In modern heavy industry, tribological degradation—specifically abrasion, impact, erosion, and corrosion—accounts for significant financial losses. Global energy, mining, cement, and steel operations lose billions of dollars annually to unplanned plant shutdowns and replacement parts. Hardfacing (or wear surfacing) has shifted from a simple maintenance practice to a critical design engineering tool.
By depositing a wear-resistant alloy layer onto a ductile carbon steel base via flux-cored arc welding (FCAW) or open-arc overlay, industrial operators achieve structural strength paired with surface durability. The core of this technology revolves around the microstructure: primary chromium carbides (Cr7C3) embedded in a hard, supporting austenitic or martensitic matrix. This combination prevents micro-ploughing and gouging from hard mineral particles like silica and iron ore, extending mechanical component lifespans by 5 to 10 times.
Selecting the correct chemical formulation is essential for maximizing wear life. Industrial hardfacing materials generally fall into three metallurgical classes:
China's manufacturing sector remains the global leader in heavy-duty hardfacing products. Tangshan Runxing Machinery Co., Ltd., located in the steel province of Hebei, demonstrates this production capacity.
Tangshan's massive steel industry provides Runxing Machinery with access to high-quality base steels and raw alloy materials, minimizing transport costs and lead times. Our factory integrates:
Raw material handling, vertical roller mills, separator guides, and discharge hoppers suffer severe sliding wear. CCO wear plates protect these areas, minimizing downtime and maintaining mill performance.
See more products>
Excavator buckets, dragline liners, and dump truck beds face continuous impact and friction from rock ores. Runxing custom wear liners protect heavy mining machinery, extending the service life of equipment.
See more products>
Sintering plants, coke transport chutes, and blast furnace bell housings operate under high temperatures and constant abrasion. Complex carbide overlay plates protect these surfaces, reducing maintenance costs.
See more products>
Coal-fired power stations rely on continuous pulverization. Pulverizer roller tires, tables, and exhauster fan blades require regular hardfacing maintenance to prevent structural failures.
See more products>
Dredging pipelines, sand pumps, and grab buckets experience combined wet abrasive slurry and mechanical wear. Overlaid pipe elbows and custom liners prevent hull wear and piping failures.
See more products>
In applications with extreme abrasion and low impact, high-purity alumina ceramics sintered at high temperatures offer a specialized alternative for chute linings and cyclones.
See more products>
We continuously monitor, adapt, and update our metallurgical products to address new field conditions, ensuring optimal service lifetimes under harsh operations.
See more products>
Ongoing research and development is focused on introducing higher-density nano-alloy structures to resist fine particle abrasion under extreme temperatures.
See more products>Founded in 2010, Tangshan Runxing Machinery Co., Ltd. is a professional manufacturer based in Tangshan, Hebei Province, focusing on the research, development, production, and on-site repair of hardfacing wear-resistant metal products.
Our product portfolio includes chromium carbide overlay (CCO) wear plates, custom wear liners, wear-resistant pipes and fittings, hardfacing flux-cored welding wires, automatic surfacing equipment, and professional roller rebuild services. Operating under a philosophy of "Integrity, Superior Quality, Innovation & Sustainable Development", we utilize advanced metallurgy and surface engineering.
We provide wear solutions for cement, steel, mining, port, and dredging industries globally, with established market partnerships in Russia, Central Asia, and Latin America. All export transactions are managed through Hebei Yuwan International Trade Co., Ltd., ensuring professional customs handling, logistics, and trade execution.
read more >
In 2023, Yuan Shaoqiang (Dean of Tangshan University), Li Jing (Vice Dean), and Professor Yang Yuehui (Team Leader of Metal Materials and Forming Technology) visited Runxing Machinery to research metal forming and metallurgy. Under the guidance of General Manager Li Xiuhua and Vice General Manager Cui Jianying, our company has developed collaborations that bridge theoretical metallurgical research with industrial application, resulting in wear-resistant overlays with improved performance under high temperature and mechanical stress.
Since 2019, Tangshan Runxing Machinery has been an authorized representative for VAUTID (Germany) welding materials. Over six consecutive years of partnership, we have manufactured wear-resistant products utilizing German alloy formulations. This allows us to offer products that combine European metallurgical engineering with the production scale and cost efficiencies of our Chinese manufacturing facility.
The industry is shifting from manual maintenance welding to automated, high-deposition processes. Runxing’s automatic surfacing equipment features advanced numerical control interfaces accessed via a 10.2-inch touch screen. The machinery supports:
Tangshan Runxing Machinery Co., Ltd. has launched www.runxing-machinery.com to improve service delivery and industry connectivity, offering digital access to our wear product catalog.
read more >
In September 2024, Runxing exhibited at the International Construction and Mining Machinery Exhibition in Johannesburg, South Africa, presenting our range of wear plates and hardfacing wires.
read more >
The metallurgical faculty and metal materials team from Tangshan University visited our facility to collaborate on technical improvements to our wear-resistant composite alloys.
read more >
Runxing has operated as a qualified agent for Germany's VAUTID brand, producing high-alloy wear parts that combine European standards with efficient local manufacturing.
read more >
Runxing attended the EXPOMIN mining exhibition in Santiago, Chile, showcasing our CCO liners and specialized flux-cored wires to Latin American mining operations.
read more >Hardfacing wire is a specialized welding consumable (either solid or flux-cored) designed to deposit a wear-resistant alloy layer onto a base metal. It is used to rebuild worn components or protect new ones in high-wear environments like mining buckets, cement grinders, and steel mill chutes.
Flux-cored wire allows the inclusion of carbide-forming elements (chromium, carbon, niobium, boron) inside the core. This permits high-alloy deposits that cannot be easily produced in solid wire form. Additionally, self-shielded flux-cored wires do not require external shielding gas, making them suitable for outdoor field repairs.
Chromium Carbide Overlay (CCO) is a composite material featuring a structural steel backing plate clad with a high-chromium, high-carbon alloy weld layer. This layer contains primary Cr7C3 carbides with a typical hardness of 58–62 HRC, which block abrasive particles from wearing down the underlying plate.
Purchasing agents should evaluate the chemical composition (specifically chromium and carbon percentages), the hardness range (typically measured in HRC), the wear mechanism suitability (abrasion vs. impact), wire diameter, and packing configurations suitable for automatic feed systems.
Automated cladding provides precise control over temperature and travel speed, ensuring uniform weld bead deposition. This limits dilution (mixing) with the base carbon steel, keeping the wear layer alloy concentration high throughout the overlay thickness.
DIN 8555 is a European metallurgical standard that classifies filler metals for surfacing based on alloy composition, mechanical properties, and the type of wear resistance they provide. Runxing's RX®wp 7600 corresponds to these guidelines.
As a certified VAUTID partner for six consecutive years, Runxing combines European alloy designs and quality control protocols with Chinese production scale and shipping access, providing reliable wear-resistant components.
Export operations are managed through Hebei Yuwan International Trade Co., Ltd., which coordinates customs clearance, maritime shipping, and documentation, ensuring delivery to regions including Central Asia, Russia, Africa, and Latin America.
High-efficiency automated overlay systems featuring a 10.2-inch touchscreen interface, adjustable swing weld path, and centralized control of four independent guns.
See more products>
Custom engineering of complex industrial parts, specialized hardfacing applications, and fabrication of custom-fit hopper wear-liner layouts.
See more products>
Complete refurbishment services for continuous casting rolls, mill table rollers, coal pulverizer tires, and grinding discs using specialized alloy wire overlays.
See more products>
Heavy-duty Runxing RX-m series engineered for mining chutes and cement liners. Built to survive abrasive wear under impact.
See more products>
Dual-layer steel plate featuring a carbon steel structural base and a chromium-carbide rich overlay. Designed for heavy industrial sliding wear.
See more products>
Flux-cored wires designed for high-stress grinding abrasion. Suitable for mill rolls and vertical grinding disks.
See more products>
Self-shielded open arc welding wires for field applications. Developed to deposit high-density chromium-carbon alloys without gas cylinders.
See more products>
Wear plates clad with high-chromium alloy weld overlays. Custom sizes and thicknesses available for heavy industry applications.
See more products>
Runxing machinery