High-Quality Position Welding Manufacturer & Factory

Industrial Wear Protection, Automated Hardfacing Equipment, and Premium CCO Plates

Strategic Sourcing

High-Performance Hardfacing & Weld Surfacing Products

ODM Chromium Carbide Overlay (CCO) Wear Plate

ODM Chromium Carbide Overlay (CCO) Wear Plate

Hypereutectic matrix hardfacing wear plates engineered for extreme abrasion and impact applications.

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Wholesale Hardfacing Materials - Flux Cored Wires

Wholesale Hardfacing Flux Cored Wires

Premium flux-cored wires designed for high-stress grinding abrasion, providing consistent weld deposition rates.

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ODM High Hardness CCO Wear Resistant Steel Plate

Runxing RX-m Series CCO Wear Plates

High-hardness wear-resistant steel plate customized for heavy mining chute liners and cement transfer chutes.

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OEM Self-Shielded Flux Cored Wire

OEM Self-Shielded Flux Cored Wire

Specially formulated hardfacing wire for outdoor repair without the need for external shielding gas systems.

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Bimetallic Chromium Carbide Wear Resistant Steel Plate

Bimetallic Chromium Carbide Surfacing Plate

Composite steel plate featuring structural steel backing fused with high-alloy chromium carbide surfacing layers.

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RXwp 7600 Wear Plate

RX®wp 7600 Composite Wear Plate

DIN 8555 compliant composite wear plate made of structural steel backing and high-hardness weld surfacing.

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Self Shielded Welding Wire

Industrial Hardfacing Welding Wires

Self-shielded chromium alloy wire developed for high-stress grinding abrasion with low impact resistance.

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PTTA Surfacing Wires

PTTA Cladding & Welding Material

High-chromium alloy deposit material designed to withstand severe scraping, grinding, and sliding friction forces.

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14+ Years of R&D Experience
6+ Years VAUTID Qualified Agent
4 Welding Guns Cladding Automation
30+ Global Mining & Cement Partners

The Mechanics of Industrial Wear & Advanced Position Welding

In modern heavy industrial applications—such as mining operations, cement kilns, coal-fired power plants, and maritime dredging—equipment integrity is constantly threatened by severe wear mechanisms. These include sliding abrasion, high-stress grinding, mechanical impact, and thermal fatigue. To prevent premature component failure and minimize costly maintenance downtime, engineering teams rely on hardfacing wear-resistant metal products. Chromium Carbide Overlay (CCO) plates, bimetallic composite wear liners, and high-alloy hardfacing wires form the foundation of modern wear protection.

At the core of manufacturing these high-performance materials is the process of position welding (also referred to as controlled position surfacing). Position welding involves the systematic deposition of wear-resistant alloys onto structural backing plates or mechanical components using specialized automated machinery. By manipulating the spatial orientation of the welding torch and the workpiece, automated cladding systems achieve optimal weld pool dynamics. This precise control over positioning prevents defects like dilution, porosity, and uneven bead profile, resulting in a dense, uniform, and crack-free hardfacing layer.

Unlike conventional manual welding, automated position welding ensures consistent thermal input. The metallurgical bond achieved between the structural backing (usually low-carbon or low-alloy steel) and the hardfacing overlay is exceptionally strong. This fusion-bonded structure allows CCO plates to withstand both shearing forces and mechanical shock, outperforming mechanically attached or ceramic-based wear solutions in heavy-duty structural applications.

Key Insight: Microstructural Engineering

The superior abrasion resistance of Runxing's Chromium Carbide Overlay plates stems from the formation of primary Cr7C3 carbides. These hypereutectic carbides exhibit a microhardness of up to 1200–1600 HV, embedded within a tough, ductile eutectic matrix. This combination resists micro-ploughing and cutting by abrasive particles, ensuring long-term wear protection.

Development Trends in the Global Hardfacing & Cladding Industry

The global industrial landscape is shifting toward automation, digitalization, and material science optimization. This evolution has driven several key trends in the field of position welding and hardfacing:

1. Intelligent Automation & CNC Integration: Modern cladding machines are no longer simple mechanical manipulators. They feature advanced CNC control units and real-time monitoring systems. Operators adjust parameters like swing frequency, travel speed, and deposition rate via high-resolution touchscreens. This ensures uniform bead deposition and minimizes dilution from the base metal.

2. Multi-Gun Configurations: To maximize throughput and efficiency, leading manufacturers deploy multi-gun cladding mechanisms. Multi-gun setups (such as 4-gun automated systems) can operate simultaneously or independently. This design drastically reduces processing times for large-scale wear plate fabrication and roll repair.

3. Advanced Alloying and Material Sourcing: The industry is continually researching complex carbide chemistries. While chromium carbide remains the standard, additions of niobium, vanadium, and boron are increasingly used to enhance high-temperature performance and impact toughness. Partnerships with leading metallurgy brands, like Germany's VAUTID, ensure access to premium, consistent chemical formulations.

Technical Whitepaper

Subject: Position Welding & CCO Wear Plate Manufacturing

Standards: DIN 8555 compliance, ISO 9001 certified manufacturing parameters.

Core Materials: Chromium Carbide Overlay, Bimetallic Composites, Flux-Cored Wires.

Author: Tangshan Runxing Machinery Metallurgy Group

This document outlines the manufacturing processes, metallurgical characteristics, and global supply chain dynamics associated with advanced hardfacing systems.

Global Applications

Localized Scenarios & Heavy Industry Case Studies

Cement Industry Wear Solutions

Cement Industry

Equipment availability is critical in cement processing. Our wear-resistant products protect key components like vertical mill rollers, chutes, and classifier cones from severe abrasive wear, ensuring uninterrupted production.

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Mining and Ore Processing Wear Protection

Mining Operations

Global mining operators demand cost-effective wear solutions to handle high-tonnage ore flow. We supply wear plates, liners, and pipes that withstand severe scraping, grinding, and impact in hopper and chute systems.

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Steel Production Chute Liners

Steel Manufacturing

Steel mills operate under harsh conditions involving abrasive iron ore sinter, high thermal loads, and corrosive gases. Our hardfaced guide plates and mill chutes help extend equipment lifespan and minimize maintenance downtime.

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Power Generation Plant Wear Protection

Power Generation

Coal-fired power plants experience severe erosion in pulverizer components, fan blades, and coal handling hoppers. Our overlay solutions protect dust removal systems and fuel pipes from high-velocity particle wear.

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Port and Dredging Chute Liners

Port & Bulk Handling

Bulk ports require wear-resistant materials for grab buckets, conveyor transfer points, and chute systems handling abrasive materials like coal and mineral ores, ensuring reliable, high-speed ship loading.

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Alternative Sintered Alumina Ceramics

Alternative Materials

We supply alumina ceramic composite linings alongside metal solutions. Sintered at high temperatures, these tiles provide wear protection in applications with low-impact, high-abrasion sliding dynamics.

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Supply Chain Integrity

Export Operations: Managed exclusively by Hebei Yuwan International Trade Co., Ltd.

Services: Customs clearance, secure ocean transit wrapping, documentation, and international payments.

Production Site: Tangshan, Hebei Province, China.

China Factory 4.0: Supply Chain Resilience & Efficiency Advantages

Global procurement managers prioritize two key metrics: consistent quality and delivery reliability. China's advanced manufacturing sector, particularly in heavy industrial hubs like Tangshan, has integrated digital technology to offer a resilient supply chain for wear protection materials.

At Tangshan Runxing Machinery, our manufacturing facility adopts Industry 4.0 principles. Our automated hardfacing production lines utilize programmable controllers to regulate welding parameters. This system matches feed rates and heat inputs to the plate size, reducing waste and ensuring uniform hardness across the overlay surface. High-efficiency production enables rapid fulfillment of large volume orders, providing a competitive alternative to regional fabricators.

To streamline global delivery, all export logistics are managed by Hebei Yuwan International Trade Co., Ltd. This partnership allows our production team to focus on R&D and manufacturing, while Hebei Yuwan handles customs clearance, international compliance, secure packing for maritime transit, and door-to-port shipping coordination. This system ensures that our global customers in Russia, Central Asia, and beyond receive their wear plates, flux-cored wires, and custom liners on schedule.

Material Traceability

Every batch of steel backing and high-chromium flux-cored wire undergoes testing. We document chemical composition and hardness levels to maintain consistent material trace archives.

Custom Engineering

Our engineering team designs custom-shaped wear liners and pipes using customer-supplied CAD drawings, delivering components ready for immediate installation.

Logistical Synergy

By routing shipment, compliance, and customs operations through Hebei Yuwan, we reduce export friction, optimize container space, and lower ocean freight costs.

Trust Us, Choose Us

About Tangshan Runxing Machinery Co., Ltd

Founded in 2010 in Tangshan, Hebei Province, Tangshan Runxing Machinery Co., Ltd. is a manufacturer focused on the R&D, production, and on-site construction of hardfacing wear-resistant metal products. Runxing operates with a commitment to quality and service, developing a broad portfolio of surface hardfacing solutions.

Our main product line includes chromium carbide overlay (CCO) wear plates, custom wear liners, wear-resistant pipes and fittings, hardfacing flux-cored welding wires, automatic cladding machinery, and professional roller resurfacing repair services. These products are engineered to provide long service life and reliable wear protection across a range of heavy industries.

Over the past decade, we have established long-term partnerships with research institutions and material technology providers to refine our manufacturing processes. Runxing is an authorized partner and agent for VAUTID brand welding materials, allowing us to combine advanced domestic cladding technology with international alloy materials to meet demanding specifications.

Through our export partner Hebei Yuwan International Trade Co., Ltd., we supply wear solutions to industrial operations globally, including markets in Russia, Central Asia, South America, and Africa.

Tangshan Runxing Office & Operations

Tangshan Runxing Machinery remains committed to technical innovation and quality control. We work with clients to design customized wear protection solutions for complex industrial environments.

Events & Trade Shows

Industry Connectivity & Scientific Collaboration

Website Launch Event

Runxing Launches Web Platform

Our web platform is designed to streamline customer inquiries, simplify order placement, and provide detailed technical data sheets for our international client base.

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Runxing Machinery at Africa 2024

Exhibiting at Africa 2024 Expo

We showcased our wear protection plates and hardfacing wires at Johannesburg's construction and mining expo, strengthening relationships with mining operators in the region.

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Tangshan University Delegation Visit

Academic Exchange with Tangshan University

Delegates from Tangshan University visited our facility to review joint R&D projects focused on refining metal forming processes and improving alloy hardfacing formulations.

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Germany VAUTID Partnership certificate

Certified VAUTID Agent for 6+ Years

Our continued partnership with VAUTID Germany allows us to integrate high-quality welding consumables into our wear products, meeting stringent international standards.

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Runxing at EXPOMIN 2023 Chile

Expanding Services at EXPOMIN Chile

We presented our custom mining hopper liners and automated rebuild systems at EXPOMIN, establishing new partnerships across South American mining regions.

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Industrial Q&A

Deep Technical FAQs: Hardfacing, Cladding, and Wear Plates

Q1: What are the differences between Chromium Carbide Overlay (CCO) plates and standard AR (Abrasion Resistant) steels?
Standard AR steels (such as AR400, AR500, or AR600) are through-hardened carbon-manganese steel alloys that rely on heat treatment to achieve their wear resistance. While tough and structural, their hardness is typically limited to 360–600 HB. Chromium Carbide Overlay (CCO) plates, on the other hand, feature a mild structural steel backing overlaid with a high-alloy, hypereutectic layer rich in chromium carbides (M7C3). The overlay hardness ranges between 58–65 HRC (approx. 650–800 HB). CCO plates typically provide 4 to 10 times the service life of standard AR steels in sliding abrasion and high-stress grinding applications.
Q2: How does automated position welding improve the quality of wear plate surfacing?
Automated position welding uses CNC control and precise positioning systems to manage the distance, travel speed, and oscillation width of the welding torch. Controlling these variables ensures uniform heat distribution and maintains a stable dilution rate (the mixing of the base metal with the wear-resistant overlay alloy). Minimizing dilution ensures that the chemical composition and hardness of the overlay remain consistent throughout its depth. Additionally, automated processes control cooling rates, which helps manage stress relief cracks and prevents internal voids or porosity.
Q3: What are the DIN 8555 classifications for Runxing's hardfacing materials?
Our wear plates and hardfacing consumables are manufactured to meet European and international standards. For example, the RX®wp 7600 composite plate corresponds to DIN 8555: MSG 10-GF-60-G. This classification designates a gas-shielded or self-shielded flux-cored wire alloy deposit with high chromium content, designed for high-abrasion applications without high impact loading, yielding a minimum bulk hardness of 60 HRC after deposition.
Q4: Can CCO wear plates be cut, bent, and welded on-site?
Yes. CCO wear plates are designed to be fabricated and installed on-site. Because the base backing layer is mild steel (typically Q235B or ASTM A36), the plates can be structural-welded to support structures from the back. The plates can be cut using plasma arc, water jet, or carbon arc gouging (cutting from the backing side first). They can also be rolled or curved to line curved chutes and pipes, with the overlay facing inward or outward depending on the application. We recommend maintaining minimum bending radii relative to plate thickness to avoid cracking the overlay.
Q5: Why do CCO plates have surface relief cracks, and do they affect performance?
The cross-cracks visible on the surface of CCO plates are stress-relief cracks. They are a normal and necessary characteristic of high-alloy hardfacing overlays. Because the thermal expansion coefficients of the high-chromium overlay and the mild steel backing differ, the overlay naturally cracks as it cools after welding. These micro-cracks relieve residual stresses, preventing the plate from warping or delaminating during fabrication and operation. They do not compromise the wear resistance or structural integrity of the composite plate.
Q6: What is the benefit of a 4-gun automated welding system?
A 4-gun system allows four welding torches to operate simultaneously on a single cladding machine. The torches can work in tandem or independently, managed by a centralized CNC unit. This configuration increases deposition rates and throughput, allowing us to maintain short lead times even for large orders. Additionally, the coordinated heat input from multiple torches helps manage plate distortion, resulting in flatter finished plates that are easier to cut and install.
Q7: How does Tangshan Runxing manage quality control and material testing?
We operate a dedicated testing facility at our Tangshan factory. Quality control starts with raw material inspection, including verification of steel backing plate dimensions and chemical analysis of welding wires. During and after cladding, we perform regular ultrasonic testing to check for bonding defects, along with microscopic analysis to verify carbide volume fractions. We also conduct hardness tests across the overlay surface to ensure consistent wear properties before shipment.
Q8: How does the partnership between Tangshan Runxing and Hebei Yuwan operate?
To ensure efficient export operations, Tangshan Runxing has authorized Hebei Yuwan International Trade Co., Ltd. to manage all international trade and logistics. The factory focuses entirely on R&D, quality control, and manufacturing. Hebei Yuwan handles all export compliance, customs documentation, shipping arrangements, and international banking transactions, providing global customers with a streamlined procurement experience from order placement to final delivery.
Industrial Catalog

Advanced Industrial Cladding & Rebuild Systems

Automated Cladding CNC Machine

Automated Cladding CNC Systems

Advanced numerical control cladding systems equipped with 10.2-inch touchscreens and 4-gun mechanisms for high-volume plate fabrication.

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Machining & Custom Engineering Accessories

Machining & Engineering Services

Custom fabrication and CNC machining of wear components, including chute assemblies, hopper liners, and pipes built to client drawings.

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Industrial Roll Surfacing Repair

Grinding Roll & Roller Rebuilds

Professional surfacing services for cement mill rollers, coal crushers, and continuous casting rollers to restore original dimensions and wear life.

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ODM CCO Wear Plate

Bespoke ODM CCO Wear Plates

Custom-sized bimetallic wear plates manufactured with high-chromium alloys to meet specific sliding-friction requirements.

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Wholesale Hardfacing Wires

Bulk Hardfacing Flux Cored Wires

High-chromium welding wire supplied in bulk packaging (spools/drums) for industrial maintenance and fabrication shops.

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OEM Self Shielded Wire

OEM Hardfacing Welding Consumables

Self-shielded open-arc flux-cored wires designed to deposit high-hardness wear surfaces under field conditions.

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Bimetallic chromium plate

High-Quality Surfacing Wear Plates

Double-layer composite plates with a structural base and a hard alloy overlay, offering a balance of structural strength and wear life.

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PTTA Surfacing Wires

PTTA Custom Hardfacing Material

Specialty hardfacing materials designed to protect industrial fans, slurry pumps, and mixing blades from erosion and abrasion.

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Trusted by Global Heavy Industrial Partners

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