High chromium alloy designed for resisting high stress grinding abrasion with low impact. Engineered for open-arc processes.
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Composite material wearplate made of a structural steel backing & a hard weld surfacing. Delivers outstanding performance under severe abrasion.
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High-quality wear-resistant composite steel plate corresponding to DIN 8555, ideal for heavy industrial lining applications.
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Superior quality flux cored wires optimized for rebuild, buffer layering, and final high-abrasion overlays.
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Runxing RX®-m Series designed specifically for mining cement chutes, hopper liners, and extreme heavy bulk handling systems.
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Premium wearplate combining structural steel backing and hard weld surfacing, custom engineered for severe sliding abrasion.
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High efficiency automated CNC cladding machines configured with four welding guns operating simultaneously.
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Restorative wear surfacing for continuous casting rolls, conveyor rolls, pulverizer roller presses, and mill grinding tables.
See more products >In heavy industries such as mining, cement manufacturing, steel production, and power generation, raw materials processing systems are constantly subjected to severe mechanical stresses. Standard structural carbon steels lack the metallurgical hardness and wear resistance required to survive constant exposure to highly abrasive materials like quartz, clinker, sinter, and coal. The resulting degradation leads to unscheduled equipment downtime, reduced output efficiency, and significant capital expenditure on replacement components.
To mitigate this wear, industries deploy Chromium Carbide Overlay (CCO) wear plates and specialized surfacing technologies. Hardfacing, the process of welding a thick layer of wear-resistant alloy onto a structural steel substrate, is the core technology used to extend the lifespan of these wear-exposed components. Procuring these solutions directly from an established OEM Wire Machine Factory allows international purchasing departments to obtain custom formulations, optimize grain microstructure, and deploy automated welding equipment designed for high-efficiency repair and fabrication.
Industrial machinery components operate in environments where they are worn down by several mechanisms: low-stress sliding abrasion, high-stress grinding abrasion, and impact wear. Sourcing engineers must assess these mechanisms to match the metallurgy of the overlay to the environment:
Manufactured by overlaying a structural steel backing plate with a hard weld surfacing corresponding to DIN 8555. Engineered to handle extreme sliding abrasion. Used as primary liners for high-wear industrial transfer points.
A high-chromium alloy designed specifically for resisting high-stress grinding abrasion under low-impact conditions. These wires do not require an external gas shield, making them suitable for field applications.
Plasma Transferred Arc (PTA) related self-shielded wires and powders. Engineered to deposit high-density alloy barriers that block fine abrasive media from wearing away underlying machine components.
Features high-level automation, a small footprint, and low power consumption. Controlled via a 10.2-inch numerical touch screen. Configured with four welding guns that can operate simultaneously or independently.
Customized cutting, rolling, and fabrication of bimetallic wear liners. Designed to fit OEM specifications for heavy machinery, including chutes, pipes, mill bodies, and hopper assemblies.
Repair services for continuous casting rolls, conveyor rolls, and vertical mill grinding disks. Restores worn profiles and deposits alloy layers that improve operational life and reduce maintenance costs.
Tangshan Runxing Machinery Co., Ltd., founded in 2010, is a professional manufacturer based in Tangshan, Hebei Province, focusing on the R&D, production, and on-site construction service of hardfacing wear-resistant metal products. The factory utilizes advanced metal surface hardfacing technology to design wear protection systems that address high abrasion and impact.
Our main products include chromium carbide overlay (CCO) wear plates, custom processed wear liners, wear-resistant pipes and pipe fittings, hardfacing flux-cored welding wires, automatic hardfacing welding machines, and professional roller surfacing repair services. We supply custom wear solutions globally to operators in the cement, steel, mining, port, and dredging industries.
To ensure consistent quality and reliable delivery, all export business is authorized and managed by Hebei Yuwan International Trade Co., Ltd. This specialized trading partner completes all international trade procedures, including customs clearance, maritime logistics, legal documentation, and payment processing, allowing the production team to focus on metallurgical quality, R&D, and engineering accuracy.
Critical components like vertical mill rollers, table liners, separator guide vanes, and feed chutes require wear protection. Runxing CCO wear liners help maintain crushing efficiency and extend run times.
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Mine operators face severe sliding abrasion from raw ores. We supply bimetallic steel plates for excavator buckets, heavy dump truck beds, hopper chutes, and conveyor transfer points.
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Steel mills operate under high-temperature abrasive conditions. Our wear solutions protect sinter screening decks, blast furnace charging hoppers, raw mineral coke guide plates, and skip cars.
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Coal-fired power stations require protection for coal mill pulverizers, exhauster fan blades, flue gas desulfurization systems, coal transport conduits, and bottom ash disposal hoppers.
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Bulk cargo ports handling coal, ores, and grain require wear protection for grab buckets, hopper liners, stacker-reclaimers, and conveyor chutes to ensure continuous logistics flow.
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For environments with extremely high temperatures and chemical corrosion but low impact, we manufacture alumina ceramic wear liners sintered at high temperatures from high-purity superfine alumina powder.
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We continue to develop specialized hardfacing alloys and composite plate geometries to meet the evolving operating conditions of heavy machinery globally.
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Collaborating with industrial partners and metallurgy universities to refine our deposition processes and develop next-generation wear mitigation systems.
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In September 2024, Runxing Machinery exhibited at the South Africa International Construction Machinery Exhibition and Mining Machinery Exhibition in Johannesburg, connecting with mine operators and equipment buyers across the continent.
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Leaders and professors from the Metal Materials and Forming Technology team at Tangshan University visited our facility to inspect our production lines, review metallurgy data, and discuss joint R&D projects.
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Runxing Machinery participated in EXPOMIN 2023, the mining exhibition in South America, displaying our chromium carbide overlay (CCO) wear plates and automatic cladding equipment to regional mining buyers.
Read more >As heavy industry demands higher throughput and less downtime, wear protection materials must evolve. Runxing Machinery’s R&D is focused on three areas: alloy optimization, digital control for automated surfacing, and localized supply chain integration.
In weld overlay processes, dilution occurs when the molten base metal mixes with the chemistry of the hardfacing consumable. Excessive dilution lowers the carbon and chromium concentration of the overlay, reducing the wear resistance of the final plate. Our automated CNC multi-gun surfacing systems address this by managing heat input and travel speeds. This keeps base metal dilution below 10%, ensuring the designed chromium carbide density is achieved even in the first layer.
Using higher chromium-to-carbon ratios alongside carbide-forming stabilizers like niobium, vanadium, and boron, our metallurgical engineers refine the carbide microstructure. Standard primary carbides can become large and brittle, leading to stress cracking during temperature changes. By refining the grain size of the M7C3 primary chromium carbides, we produce overlay structures that maintain high sliding wear resistance while offering improved toughness against impact.
For international buyers, logistical reliability is as important as material quality. Runxing Machinery works in partnership with Hebei Yuwan International Trade Co., Ltd. to manage the logistics process, including customs classification, export clearance, ocean transit, and documentation. This allows the factory to focus on manufacturing while ensuring that shipments reach international sites in Russia, Central Asia, South America, and Africa on schedule.
Runxing Chromium Carbide Overlay (CCO) plates are manufactured with a high-chromium iron-based alloy. The chemistry typically ranges from 4.0% to 5.5% Carbon and 25% to 35% Chromium, yielding a microstructure dense with primary M7C3 chromium carbides. The macroscopic hardness ranges between 58 and 62 HRC (Rockwell C scale) and is designed to conform to the DIN 8555 standard.
Self-shielded flux-cored wires contain internal fluxing agents that generate their own protective gas shield and slag when melted by the arc. This eliminates the need for pressurized shielding gas cylinders (like Argon or CO2), which can be dispersed by wind when working outdoors. This feature makes them suitable for field repair projects on bucket wheels, chutes, and hopper systems.
Our automatic surfacing machinery is equipped with a numerical control system operated via a 10.2-inch touchscreen. It controls travel speed, oscillation width, step-over, and welding currents. This consistency prevents manual variations, keeps dilution rates low, and produces a uniform weld bead profile across the entire surface of the plate.
During cooling, the thermal contraction difference between the carbon steel backing plate and the chromium carbide weld overlay creates internal stresses. This is relieved by the formation of fine, transverse cracks through the overlay thickness (but not extending into the backing steel). These stress-relief cracks are normal, do not impact wear performance, and allow the plates to be rolled, formed, and fabricated without delamination.
Yes, CCO plates can be welded. The carbon steel backing layer (typically Q235B or Q355) is weldable using standard low-hydrogen structural electrodes or solid wire. Alternatively, the plates can be secured using plug-welded studs or countersunk bolts through custom CNC-machined holes.
Runxing Machinery focuses on product design, metallurgy, and production quality control. All international marketing, sales, and logistics are managed by Hebei Yuwan International Trade Co., Ltd. They handle export customs clearance, coordinate maritime transport, prepare bill of lading documentation, and manage foreign exchange payments.
High chromium alloy designed for resisting high stress grinding abrasion with low impact. Engineered for open-arc processes.
See more products >
Composite material wearplate made of a structural steel backing & a hard weld surfacing. Delivers outstanding performance under severe abrasion.
See more products >
High-quality wear-resistant composite steel plate corresponding to DIN 8555, ideal for heavy industrial lining applications.
See more products >
Superior quality flux cored wires optimized for rebuild, buffer layering, and final high-abrasion overlays.
See more products >
Runxing RX®-m Series designed specifically for mining cement chutes, hopper liners, and extreme heavy bulk handling systems.
See more products >
Premium wearplate combining structural steel backing and hard weld surfacing, custom engineered for severe sliding abrasion.
See more products >
High efficiency automated CNC cladding machines configured with four welding guns operating simultaneously.
See more products >
Restorative wear surfacing for continuous casting rolls, conveyor rolls, pulverizer roller presses, and mill grinding tables.
See more products >
Runxing machinery