Wholesale Laser Surfacing Supplier & Factory

High-End Metallurgical Hardfacing, Automated Cladding Systems & Advanced Tribological Protection Solutions

Our Featured Surfacing Products

Premium wear plates, hardfacing flux-cored wires, and custom engineered overlay solutions designed to extend service life in high-stress abrasive environments.

High-Quality Bimetallic chromium carbide surfacing wear-resistant composite steel plate

Bimetallic Chromium Carbide Wear Plate

Premium high-carbon, high-chromium overlay steel plate designed for extreme grinding and high-stress abrasion resistance.

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ODM High Hardness CCO Hardfacing Overlay Wear Resistant Steel Plate

High Hardness CCO Overlay Plate

Runxing RX-m series engineered for mining, cement, and material transport chute liners with exceptional toughness.

Technical Details
Wholesale Hardfacing materials - Flux cored wires

Hardfacing Flux Cored Wires

High chromium alloy wires optimized for open arc welding, minimizing base dilution and preserving deposit chemistry.

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ODM Chromium Carbide Overlay CCO Wear Plate

ODM Chromium Carbide (CCO) Plate

Highly customizable overlay plates featuring a heavy fraction of primary chromium carbides for industrial chutes and hoppers.

Custom Sizing
OEM self-shielded flux cored wire for hardfacing

Self-Shielded Flux Cored Wire

Excellent weldability, minimal spatter, and high deposition rate under tough onsite hardfacing environments without shielding gas.

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Wear Plate RX-wp 7600

RX-wp 7600 Composite Wear Plate

Structural steel backing overlay conforming to DIN 8555 standards, offering high toughness and supreme grinding resistance.

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Welding Wire for high stress grinding abrasion

High-Stress Abrasion Welding Wire

Self-shielded high-alloy wire engineered to resist heavy sliding abrasion with minimal impact sensitivity.

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Automated Welding Equipment

Automated Hardfacing Systems

Four-gun simultaneous smart welding machines with 10.2-inch CNC touch screen for uniform, high-efficiency roll surfacing.

Surfacing Machinery

1. The Global Landscape of Industrial Laser Surfacing & Hardfacing Technology

In modern industrial operations, material degradation via mechanical wear, sliding friction, high-velocity erosion, and thermal corrosion remains one of the largest operational cost drivers. Annually, premature equipment failure costs heavy industries such as mining, power generation, cement manufacturing, and steel fabrication billions of dollars globally. Historically, maintenance departments relied on sacrificial steel plates or frequent component replacement cycles to manage wear. However, the modern manufacturing paradigm has shifted toward engineered surfaces utilizing advanced cladding and laser surfacing technologies.

Industrial laser surfacing (including laser cladding and high-speed laser deposition) represents a pinnacle of surface engineering. Unlike traditional arc welding processes that generate substantial heat input, laser surfacing utilizes a highly focused, monochromatic laser source to melt a minuscule layer of base metal while introducing alloys in the form of powder or wire. This results in an extremely narrow Heat-Affected Zone (HAZ), exceptionally low base metal dilution (under 5%), and a dense, defect-free microstructure that cannot be achieved via standard manufacturing methodologies.

Globally, the market for wear protection solutions is rapidly consolidating around specialized manufacturers capable of delivering customized, metallurgically optimized components. From sub-zero Siberian mines requiring severe-impact toughness to the highly abrasive, dust-laden environments of cement plants in Central Asia, standard alloys fail to meet today's production requirements. The modern trend demands composite systems: a structural steel backing providing ductile resistance against mechanical shock, seamlessly bonded with a high-hardness carbide overlay to combat abrasive particulates.

58-62 HRC
Overlay Hardness
14+ Years
R&D Experience
6 Years
VAUTID Partnership
4-Gun
CNC Smart Welder

2. Metallurgical Breakdown & Technical Roadmap of Hardfacing Alloys

In high-abrasion applications, the microstructural composition of the deposit determines its wear index. The two primary technical routes deployed by Runxing Machinery to resolve extreme wear are Chromium Carbide Overlay (CCO) and Plasma Transferred Arc Surfacing (PTTA). Understanding their metallurgical phases is crucial for selection:

  • Chromium Carbide Overlay (CCO): CCO materials consist of a structural backing plate (typically Q235B or Q345B carbon steels) overlayed with a high-alloy, hypereutectic deposit. Under the microscopic lens, the deposit reveals primary M7C3 chromium-rich carbides embedded within a highly supportive ductile, austenitic matrix. These hexagonal M7C3 carbides feature microhardnesses up to 1500 HV, offering extreme resistance to micro-ploughing and abrasive particle scratching.
  • PTTA (Plasma Transferred Arc Surfacing): This high-energy density process focuses a constricted plasma arc onto the workpiece surface. The powder feeding mechanism delivers specialized cobalt, nickel, or iron-base powders. Due to the precise control of the arc, dilution of the base material is minimized, resulting in a purer deposit that retains its high alloy concentration across the entire wear depth.
"The mechanical performance of a wear overlay is not merely a function of its bulk hardness, but the spatial distribution, crystal structure, and volume fraction of its reinforcing carbides." — Prof. Yang Yuehui, Metal Materials R&D Team
Technology / Alloy Type Typical Bulk Hardness Carbide Volume Fraction Base Metal Dilution Primary Application Fields
CCO Wear Plate (RX-wp 7600) 58 - 62 HRC > 35% (M7C3) 10% - 15% Cement hoppers, Mining chutes, Coke guide plates
PTTA Hardfacing (Specialty Alloys) 60 - 65 HRC > 45% (Complex Borides) < 5% Extrusion screws, High-temp gate valves
High-Chromium Self-Shielded Wire 55 - 60 HRC 25% - 30% N/A (Depends on parameters) Onsite roller repair, dragline lips
Wear-Resistant Alumina Ceramics > 85 HRA 95% Al2O3 0% (Bonded mechanically) Pneumatic dust pipes, ash conveyors

3. Heavy Industry Wear Protection Solutions

Operational optimization requires localized and sector-specific strategies. Below is a breakdown of our high-quality surfacing solutions customized for major heavy industries around the globe.

Cement Wear Protection Solutions

Cement Sector

We supply chromium carbide overlay liner plates for raw material chutes, separator guide vanes, and vertical mill casing liners, keeping production running efficiently.

Mining Hardfacing Applications

Mining Industry

From dragline buckets to heavy haul truck beds, our bimetallic wear plates withstand severe impact and sliding rock abrasion in copper and iron ore mining.

Steel Mill Hardfacing Roller Repair

Steel Mills

High-temperature wear resistance for blast furnace receiving hoppers, continuous caster rolls, coke guide plates, and sinter screen plates.

Power Plant Coal Pulverizer Repair

Electric Power

Hardfaced solutions for primary air fan blades, pulverizer grinding rolls, and coal-fired burner nozzles to prevent premature erosive failures.

Port Loading Chute Wear Protection

Ports & Terminals

Heavy duty bimetallic liners for material conveyor transfer chutes, loader hoppers, and clamshell grab buckets handling bulk mineral cargo.

Alternative Ceramic Wear Solutions

Alternative Ceramics

Where metallic overlays reach limits under severe high-velocity particle impingement, our high-purity alumina ceramics provide an alternative wear solution.

Advanced Wear Lining Upgrades

Engineering Updates

Ongoing metallurgical research yields newer formulations including complex alloy systems with titanium and niobium additives.

Upcoming Materials Technology

Technology Rollout

Developing laser-clad overlays optimized for thermal fatigue and corrosion-wear environments in chemical and maritime pipelines.

4. Localized Engineering Applications & Regional Operational Requirements

Industrial machinery operates under starkly different environmental conditions across geographic regions. The technical requirements of a copper mine in Kazakhstan diverge sharply from those of a marine port in South Africa. As a global supplier, Tangshan Runxing Machinery Co., Ltd. builds localized operational data to adapt alloy chemistry and design parameters accordingly:

  • Russia & Central Asia (Sub-Zero Environments): Mines in northern regions face temperatures dipping below -40°C. Under these conditions, standard structural steels undergo a ductile-to-brittle transition, making components susceptible to sudden brittle fractures under heavy impact. We engineer specialized wear liners using high-toughness steel backing plates combined with highly localized hardfacing layers. This design ensures that while the overlay resists high-abrasive ore flow, the backing structural plate retains impact energy dissipation capabilities.
  • Arid, High-Quartz Mining Regimes: In central deserts where dry mining processes dominate, quartz sand presents severe silica erosion. These conditions require the deposit's matrix hardness to exceed the microhardness of quartz (typically 900-1100 HV). Runxing's high-hardness CCO plate utilizing micro-alloying techniques with niobium (Nb) and boron (B) increases primary carbide concentration to resist micro-grooving from silica particles.

To support this international footprint, all export logistics, trade compliance, customs clearances, and multi-modal freight operations are fully managed by Hebei Yuwan International Trade Co., Ltd. This strategic division of labor ensures our production facility in Tangshan focuses on manufacturing quality and schedule adherence, while clients receive smooth customs processing and rapid delivery to site.

5. Advanced Manufacturing & E-E-A-T Footprint of Runxing Machinery

Founded in 2010 in Tangshan, Hebei Province—the heart of China's heavy engineering industry—Tangshan Runxing Machinery Co., Ltd. has established itself as an authoritative leader in advanced wear technology. Our operation adheres strictly to the highest standards of professional expertise, experience, and authority (E-E-A-T):

  • Deep Academic & Research Partnerships: Runxing continuously collaborates with the academic elite. In 2023, leaders of Tangshan University, including Dean Yuan Shaoqiang, Vice Dean Li Jing, and Professor Yang Yuehui (Lead Researcher in Metal Materials and Forming Technology), visited our facility. This ongoing research partnership translates laboratory breakthroughs in grain refinement and phase transformations directly into our commercial CCO plates and welding wires.
  • 6-Year Strategic Partnership with VAUTID Germany: Since 2019, Runxing has been a qualified agent for VAUTID, a world leader in wear-resistant alloys. By utilizing VAUTID's premier alloy formulations in tandem with our automated production, we combine German engineering precision with Chinese manufacturing scale.
  • Automated High-Precision Manufacturing: High-quality hardfacing demands consistent parameters. Our factory floor houses state-of-the-art automatic cladding systems equipped with 10.2-inch CNC touchscreens. The system regulates welding velocity, swing amplitude, and wire feed parameters. Featuring four welding guns that can operate independently or simultaneously, we achieve extremely uniform overlays, minimizing localized heat build-up and distortion.

Tangshan Runxing Machinery Co., Ltd.

We provide comprehensive wear-resistant solutions for cement, steel, mining, port, and dredging industries globally. Operating from our manufacturing base in Tangshan, Hebei, we engineer specialized bimetallic plates, hardfacing flux-cored welding wires, and custom processed liners. All export business is fully authorized and handled by Hebei Yuwan International Trade Co., Ltd., assuring robust and compliant commercial shipping, customs, and payment processing for partners worldwide.

Industry Connectivity & Global Trade Events

We actively engage with the global engineering and metallurgy community, showcasing our latest wear solutions at key trade exhibitions around the world.

Tangshan Runxing Machinery New Website Launch

New Website Launched to Enhance Industry Services

Our official platform www.runxing-machinery.com has entered operational phases, providing clients a streamlined portal for technical specification sourcing, custom fabrication design, and direct trade coordination.

Read Press Release >
Runxing Machinery at Africa 2024 Trade Show

Runxing Machinery at Electra Mining Africa 2024

From September 2 to 6, 2024, our team showcased advanced heavy industrial wear plate solutions at the Johannesburg Expo Centre, building strong relationships with mining operators across the African continent.

Exhibition Recap >
Tangshan University Leaders Inspecting Runxing

Academic Inspection by Tangshan University Leaders

Dean Yuan Shaoqiang and Prof. Yang Yuehui inspected our production line to research automated hardfacing process parameters, further strengthening our school-enterprise scientific research integration.

R&D Initiatives >
Runxing Germany VAUTID Agency Partnership

VAUTID Germany Qualification Renewed for 6 Consecutive Years

Recognized for outstanding technical support and material consistency, Runxing continues its close alignment with VAUTID to deliver premium wear materials across global markets.

Partnership Details >
Runxing Machinery at EXPOMIN Chile 2023

Runxing Machinery Participated in EXPOMIN 2023, Chile

Expanding our footprint in South America's major mining corridors, we presented our hardfacing solutions for copper and lithium processing plants at Latin America's largest mining exhibition.

Exhibition Report >

Advanced Hardfacing Manufacturing Base

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6. Technical Q&A (FAQ)

Comprehensive engineering insights clarifying hardfacing metallurgy, selection parameters, and design practices.

Q1: What defines the structural difference between Chromium Carbide Overlay (CCO) and standard Quenched & Tempered (Q&T) steel plates?

Q&T steel plates (such as AR400 or AR500) rely on grain structure changes induced by rapid cooling to achieve high hardness throughout the steel thickness. Their performance degrades rapidly when exposed to high temperature, and they are susceptible to rapid wear under high pressure sliding abrasion. In contrast, CCO plates are composite materials. The base metal provides high structural ductility, while the overlay layer contains a large volume fraction of high-hardness M7C3 chromium carbides (up to 1500 HV) that act as microscopic wear barriers. Under severe abrasion, CCO plates provide up to 5-10 times the service life of standard Q&T steels.

Q2: Why do crack networks appear on the surface of hardfacing overlay plates, and do they impact performance?

The transverse check cracks visible on the surface of CCO plates are a natural, stress-relief phenomenon. During the deposition of the hard carbon-chromium alloy onto the steel backing, the high temperature difference creates thermal stress upon cooling. The formation of these fine cracks relieves internal tension, preventing the composite plate from warping, bending, or delaminating during fabrication. These relief cracks end at the fusion boundary and do not propagate into the backing steel, meaning they do not compromise the structural integrity or wear resistance of the plate.

Q3: How does the agency agreement with German brand VAUTID enhance Runxing's offerings?

VAUTID is a globally recognized pioneer in metallurgy and tribology. Our partnership ensures that we use high-grade, metallurgically optimized VAUTID flux-cored wires and powders for specialized applications. By using VAUTID's optimized formulations, we ensure uniform distribution of primary carbides, lower dilution rates, and consistent mechanical properties that meet European international standards, all while providing cost-competitive manufacturing from our state-of-the-art facility in Tangshan.

Q4: Can bimetallic hardfaced composite plates be welded, formed, or rolled?

Yes. Bimetallic plates are highly workable. The soft structural carbon-steel backing allows these plates to be welded to existing frames using standard E7018 electrodes. They can also be rolled or formed into cylinders, cones, and U-shaped chutes. While rolling, the overlay can be positioned on either the inside or outside curve depending on the abrasion direction (rolling with overlay on the inside is preferred to keep the relief cracks closed; if rolled on the outside, minor crack widening occurs but can be repaired with touch-up hardfacing wires).

Q5: How does automated CNC 4-gun welding compare to manual surfacing?

Manual hardfacing often results in uneven deposit thickness, high dilution with the base metal, and inconsistent heat input, leading to distortion and localized soft spots. Runxing's automated 4-gun CNC system manages weld bead overlap, current, voltage, and travel speed. This precise automation reduces base metal dilution to under 15% (preserving the hard carbon-chromium ratio) and ensures uniform thickness across the entire plate surface, delivering highly consistent wear performance.

Q6: What role does dilution play in hardfacing performance, and how is it minimized?

Dilution refers to the mixing of the base metal into the deposited weld overlay. If dilution is high, the carbon and chromium content in the overlay is diluted by the carbon steel backing, reducing the volume fraction of primary carbides and lowering the wear resistance. We minimize dilution through precise controls: adjusting current and voltage parameters, maintaining optimal travel speed, and utilizing flux-cored wires designed for lower melting points to achieve high-quality wear overlays.

Complete Procurement Catalog

Explore our full range of wear solutions and manufacturing equipment. Contact us to customize plates, pipes, and alloys to your specific requirements.

High-Quality Bimetallic chromium carbide surfacing wear-resistant composite steel plate

Bimetallic Chromium Carbide Wear Plate

Premium high-carbon, high-chromium overlay steel plate designed for extreme grinding and high-stress abrasion resistance.

Get Specifications
ODM High Hardness CCO Hardfacing Overlay Wear Resistant Steel Plate

High Hardness CCO Overlay Plate

Runxing RX-m series engineered for mining, cement, and material transport chute liners with exceptional toughness.

Technical Details
Wholesale Hardfacing materials - Flux cored wires

Hardfacing Flux Cored Wires

High chromium alloy wires optimized for open arc welding, minimizing base dilution and preserving deposit chemistry.

Request Catalog
ODM Chromium Carbide Overlay CCO Wear Plate

ODM Chromium Carbide (CCO) Plate

Highly customizable overlay plates featuring a heavy fraction of primary chromium carbides for industrial chutes and hoppers.

Custom Sizing
OEM self-shielded flux cored wire for hardfacing

Self-Shielded Flux Cored Wire

Excellent weldability, minimal spatter, and high deposition rate under tough onsite hardfacing environments without shielding gas.

Get Quote
Wear Plate RX-wp 7600

RX-wp 7600 Composite Wear Plate

Structural steel backing overlay conforming to DIN 8555 standards, offering high toughness and supreme grinding resistance.

View Standard
Welding Wire for high stress grinding abrasion

High-Stress Abrasion Welding Wire

Self-shielded high-alloy wire engineered to resist heavy sliding abrasion with minimal impact sensitivity.

Compare Alloys
Automated Welding Equipment

Automated Hardfacing Systems

Four-gun simultaneous smart welding machines with 10.2-inch CNC touch screen for uniform, high-efficiency roll surfacing.

Surfacing Machinery