Engineered for severe grinding abrasion, heavy impact, and high-temperature industrial environments.
Runxing RX-m Series for Mining Cement Chute Liner Manufacturers, Factories. Premium structural steel backing with an ultra-hard weld surfacing overlay for maximum service life.
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Advanced welding wire formulations engineered to resist high-stress grinding abrasion. High chromium alloy design delivers stable deposition rates and minimal spatter.
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Optimized for onsite applications where external shielding gas is impractical. Delivers outstanding performance under severe abrasion with low-impact conditions.
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Dual-metal metallurgy featuring a tough, weldable base plate fused with a highly concentrated chromium carbide alloy top layer. Built for bulk material chutes.
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Engineered to meet specific industrial requirements for mining, steel mills, and heavy handling. Highly customizable thickness and overlay profiles.
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Composite wear plate manufactured according to DIN 8555 standards. Combines a structural steel backing with an ultra-tough weld overlay for heavy machinery liners.
Technical Standards
High chromium alloy designed to resist high-stress grinding abrasion with low impact. Excellent deposition efficiency for overlay rebuilding.
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Integrated 4-gun numerical control system featuring a 10.2-inch interactive touchscreen control. Supports open-arc, submerged-arc, and powder-fed hardfacing.
Request Machinery SpecsA technological deep dive into modern wear protection systems, metallurgical optimization, and CNC hardfacing integration.
In modern industrial manufacturing and heavy maintenance sectors, wear and abrasion represent major challenges to structural integrity, operating costs, and overall plant uptime. Across the globe, heavy industries such as cement manufacturing, mining excavation, iron and steel production, power generation, and port dredging lose billions of dollars annually to equipment wear. To address this, Flux-Cored Arc Welding (FCAW) hardfacing has emerged as a premier technology. It offers an optimal balance of deposition rate, mechanical properties, and operator versatility compared to alternative methods like Shielded Metal Arc Welding (SMAW) or Gas Metal Arc Welding (GMAW).
As a leading OEM welding machine FCAW manufacturer, Tangshan Runxing Machinery Co., Ltd. has spent over a decade studying wear characteristics in high-stress operational environments. The global shift toward automation has transformed how industrial wear plates and complex mechanical parts are resurfaced. Today's industrial developers demand integrated solutions where high-chrome alloying materials, automated deposition systems, and programmable CNC paths work in tandem. This ensures predictable wear patterns, decreases downtime, and yields a significant return on investment.
Unlike standard surface welding, true wear-resistant hardfacing relies on the creation of primary M7C3 chromium carbides. The size, distribution, and chemistry of these carbides are determined by the thermal output of the FCAW equipment, cooling rates, and wire formulation. Automated control of these parameters prevents micro-cracking propagation into the substrate.
The core of any hardfacing process is the selection and deposition of high-alloy flux-cored wires. Self-shielded flux-cored wire (such as the RX® wear series) does not require an external gas supply. Instead, it relies on gas-forming elements within the flux core to protect the weld pool. This makes it highly portable and ideal for field repairs, even in high-wind outdoor environments.
Conversely, automated welding systems require uniform control of swing arc patterns, voltage fluctuations, and feed speed. As an OEM manufacturer, Tangshan Runxing integrates advanced technologies into its systems:
| Welding Method | Deposition Efficiency | Primary Carbide Structure | Best Application Environment | Gas Protection Needed |
|---|---|---|---|---|
| FCAW Self-Shielded | 80% - 85% | M7C3 Chromium Carbides (HRC 58-62) | On-site repair, outdoor pipelines, chute liners | No (Self-Shielded) |
| FCAW Gas-Shielded | 85% - 90% | Fine Borocarbides / Carbides (HRC 60-65) | In-plant fabrication, precision rebuilding | Yes (CO2 or Ar/CO2 mix) |
| Submerged Arc (SAW) | 95% - 98% | Heavy Carbides Overlay (HRC 55-60) | Continuous heavy rolling mill repair, flat wear plates | Flux Bed Covered |
Under microscope inspection, the high-chromium bimetallic wear plate reveals a composite structure: a ductile carbon steel base backing plate (for structure and weldability) fused with a hardfaced overlay containing hexagonal chromium-carbide crystals (Cr7C3). These crystals are embedded in a tough, eutectic matrix.
Standard products, such as the RX®wp 7600, are designed to align with DIN 8555 specifications. Achieving the necessary balance of hardness and fracture toughness requires a high concentration of carbon and chromium. This chemistry promotes the formation of primary chromium carbides, which resist abrasive scratching and scraping forces.
Tangshan Runxing Machinery Co., Ltd., founded in 2010, is a professional manufacturer focused on the R&D, production, and on-site service of hardfacing wear-resistant metal products. Based in Tangshan, Hebei Province, our production covers chromium carbide overlay (CCO) wear plates, custom wear liners, wear-resistant pipe systems, hardfacing flux-cored welding wires, and automatic hardfacing machines.
We are dedicated to "Integrity, Superior Quality, Innovation, and Sustainable Development." Over the years, we have developed advanced metal surfacing technologies to serve heavy industries worldwide. Our export operations are managed by Hebei Yuwan International Trade Co., Ltd., ensuring smooth logistics, custom clearance, and international payment processing.
For six consecutive years, we have been a qualified partner for VAUTID brand welding materials in Germany, highlighting our commitment to quality and engineering standards.
We design customized wear prevention systems to address specific operational challenges across major industrial sectors.
Equipment uptime is critical for cement plants. Our wear-resistant CCO plates and automated roller press surfacing services are designed to protect critical machinery from abrasive raw materials and clinker, extending the life of your equipment.
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For mine operators looking to optimize productivity and reliability, we provide robust, high-hardness wear liners and hardfaced welding wires. These solutions are built to withstand high-impact rock fall and severe ore abrasion.
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In steel mill environments, equipment is subjected to challenging conditions involving hot slag, high-temperature friction, and scale abrasion. Our custom-designed surfacing wires help protect blast furnace bells, hopper gates, and transfer chutes.
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Pulverized coal pipelines, exhauster fan blades, and coal pulverizer mill rolls require targeted protection against continuous erosion. Our customized bimetallic pipes and hardfaced plates provide reliable, long-term wear protection.
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Handling bulk materials at port facilities and navigating abrasive seabed sand in dredging projects causes severe erosion on ship hoppers, chutes, and pump casings. We provide specialized overlays designed for wet slurry transport.
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For applications where metallic weld overlay is not suitable, we offer high-purity alumina ceramics. Sintered at high temperatures, these tiles are ideal for components facing fine particle erosion and chemical corrosion.
Read Case StudyTracking our global footprint, technological research collaborations, and international trade milestones.
Tangshan Runxing Machinery Co., Ltd. has launched its updated web platform, providing a more comprehensive tool for sourcing wear-resistant products and scheduling on-site hardfacing services.
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We showcased our automated FCAW machinery and bimetallic CCO plates at the Johannesburg International Convention and Exhibition Center, expanding our presence in African mining and infrastructure markets.
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Academic leaders from Tangshan University visited our facility to inspect our production lines, discussing joint developments in metal materials and advanced surface forming technologies.
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Runxing Machinery has maintained its status as a qualified agent for VAUTID brand welding materials for six consecutive years, reinforcing our focus on consistent material quality.
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We participated in EXPOMIN in Santiago, Chile, presenting our hardfacing solutions for the Latin American mining industry, including vertical mill rebuilding and customized wear plates.
View Event Gallery >Answers to common technical and metallurgical questions regarding automated surfacing and wear management.
FCAW (Flux-Cored Arc Welding) provides a continuous feed process that significantly reduces downtime associated with changing stick electrodes (SMAW). It offers a higher deposition rate (commonly 3–8 kg/h compared to SMAW's 1–2 kg/h) and greater penetration. The flux core contains alloying elements that allow for customization of the weld pool chemistry to meet specific hardness and toughness requirements.
CCO plates are composite materials. The base plate is typically made of a ductile structural steel (like Q235B or Q355), which absorbs structural impacts and allows the plate to be welded or bolted. The top overlay is highly alloyed with chromium and carbon to form hard Cr7C3 carbides. For applications involving high impact, we formulate specific alloys containing nickel, manganese, or niobium to improve the toughness of the matrix.
These surface cracks are known as "stress relief cracks." They form naturally during the cooling process of high-chromium overlays due to the differences in thermal contraction between the backing plate and the overlay. These cracks are normal and do not affect the plate's wear resistance, provided they do not penetrate the mild steel backing plate.
Our CNC surfacing equipment allows operators to adjust parameters including welding speed, swing width, oscillation frequency, step distance, and arc voltage. With a 4-gun configuration, users can run the torches in unison or independently, enabling customized setups for different shapes, such as flat plates, inner pipes, or cylindrical grinding rollers.
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Plasma Transferred Arc (PTA) systems engineered to deposit high-alloy coatings on components subject to intense friction, high temperatures, and chemical corrosion.
PTA Tech Data
Custom cutting, bending, rolling, and fabrication of chromium carbide overlay plates. We deliver ready-to-install wear liners based on your CAD drawings.
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On-site and in-shop rebuilding of worn grinding rolls, table liners, and roller presses for the cement, mining, and power generation industries.
Rebuilding Process
Ongoing product updates and modifications designed to improve component wear life. Custom cladding solutions for complex geometries.
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Designed for cement plant chutes and mining truck beds. Manufactured with high-chrome overlay for consistent hardness across the plate surface.
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Bulk supply of open-arc and gas-shielded hardfacing wires. Designed for high deposition rates, low dilution, and consistent chemistry.
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Designed for heavy machinery maintenance in outdoor mining operations. Formulated to resist abrasive wear and light impact without gas shielding.
Specifications
Dual-layer wear plates designed for sliding wear applications. Formulated to maintain performance under elevated operating temperatures.
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