Engineered to maximize operational uptime under extreme abrasive conditions. Our heavy-duty overlay composites offer optimal protection for localized mining chutes, cement hoppers, and port dredging equipment.
Designed for heavy wear environments. Features high-density primary M7C3 chromium carbides matrix fused to a tough structural steel base plate.
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Custom-fabricated overlay plates engineered specifically for corrosive sugar cane processing lines, bagasse handling chutes, and mill liners.
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High-hardness overlay plate providing elite abrasion resistance for limestone, clinker, and aggregate transfer hoppers at Fiji’s cement plants.
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Heavy-duty wear liners formulated to withstand severe sliding abrasion and rock impacts typical in deep-level extraction and crushing circuits.
View Details →Fiji's geographic isolation and tropical, high-salinity marine environment present distinct operational challenges for industrial components. In key sectors like gold mining in Vatukoula, limestone extraction, river dredging (such as the Rewa River initiatives), and cement production, equipment is subject to dual-force degradation: severe mechanical sliding abrasion and accelerate oxidation.
Standard carbon steel (such as mild steel or AR400/500 quenched and tempered plates) often experiences rapid degradation under these circumstances. The high humidity and constant coastal moisture promote galvanic corrosion, which accelerates mechanical spalling. Consequently, wear components require advanced metallurgical properties that prioritize chromium-carbide density and structural integration.
By transitioning to Chromium Carbide Overlay (CCO) wear plates, Fijian operations can significantly extend the lifespan of raw material handling systems. Tangshan Runxing Machinery’s premium overlay plates contain a high concentration of primary chromium carbides (M7C3) with microhardnesses reaching up to 1500 HV. This ensures a highly wear-resistant barrier that protects against continuous particle impingement.
Why CCO Plates outperform conventional hardened steel in tropical climates:
*Compiled in accordance with international ASTM G65 abrasive wear testing protocols.
How Tangshan Runxing Machinery minimizes total cost of ownership (TCO) for international wear-plate procurement, delivering premium quality directly to South Pacific terminals.
Our production facilities utilize modern multi-head automated cladding systems. This technology ensures uniform deposit thickness, strict control over dilution with the base metal, and a consistent distribution of carbide grains across the entire plate surface.
All export documentation, customs clearance, sea freight logistics, and transaction settlements are managed by Hebei Yuwan International Trade Co., Ltd. This specialized arrangement ensures efficient transit to Suva and Lautoka ports, with optimized packaging protocols designed to prevent ocean corrosion.
We provide full-service customization based on customer drawings, including CAD layout, plasma arc cutting, countersunk mounting holes, and pre-forming. This allows for direct installation at site locations in Fiji, minimizing secondary fabrication costs.
Discover our comprehensive range of wear protection systems, from raw bimetallic cladding plates to specialized hardfacing consumables and heavy-duty automated machinery.
Our RX®wp 7600 composite bimetallic plate consists of a structural steel backing plate and an overlay containing high-density chromium carbides, compliant with DIN 8555 standards.
Self-shielded, flux-cored welding wire containing high chromium-alloy components. Specifically engineered to resist high-stress grinding abrasion with moderate impact resilience.
Advanced metallurgically structured coatings applied via precise deposition techniques. Provides targeted wear protection on critical component edges in tropical marine applications.
RX® high-efficiency surfacing machines feature integrated numerical control, a 10.2-inch touch screen interface, and multi-gun control for uniform deposition on wear-resistant plates and rollers.
We leverage our manufacturing and technical experience to fabricate custom liner systems, engineered components, and custom-cut protective geometries designed to fit original equipment manufacturer (OEM) machinery specs.
Extends the operational lifespan of grinding rollers, continuous caster rolls, coal mill components, and pre-crushers. Offers customized rebuild solutions to reduce maintenance downtime and operational costs.
Exploring how CCO wear plate systems protect heavy machinery against downtime in Fiji's key industrial environments.
Founded in 2010, Tangshan Runxing Machinery Co., Ltd. is a manufacturer based in Tangshan, Hebei Province, focusing on the research, development, production, and site servicing of hardfacing wear-resistant metal components.
Our core product line includes chromium carbide overlay (CCO) wear plates, custom fabricated wear liners, wear-resistant pipe systems, hardfacing flux-cored welding wires, and automated surfacing machinery. We operate under the business principles of integrity, high quality, innovation, and sustainable development.
We provide tailored wear-resistant solutions to clients in the cement, steel, mining, dredging, and port logistics sectors worldwide. Our factory focuses on product development and manufacturing consistency, ensuring production control and reliable delivery schedules.
To support our global customers, all international export transactions, including customs clearance, marine logistics, documentation, and payments, are managed by our authorized partner, Hebei Yuwan International Trade Co., Ltd.
Understanding the microstructural properties of high-chrome weld overlays helps procurement engineers make informed selections that maximize performance.
| Alloy Type | Chromium Content (Cr) | Carbon Content (C) | Hardness (HRC) | Primary Carbide Phase | Typical Applications |
|---|---|---|---|---|---|
| RX-7600 Standard CCO | 25% - 30% | 4.0% - 5.0% | 58 - 62 HRC | M7C3 (HV 1200-1600) | Chute Liners, Sand Dredging, Cement Hoppers |
| RX-m Complex Alloy | 28% - 35% | 4.5% - 5.5% | 60 - 64 HRC | M7C3 + Complex Borides | Extreme Abrasion, High-Impact Mill Feed Chutes |
| Heat-Resistant Alloys | 22% - 28% + Ni/Mn | 3.5% - 4.5% | 55 - 60 HRC | M7C3 in Austenitic Matrix | Sinter Clinker, Steel Blast Furnace Chutes |
| Standard Q235 base | - | <0.22% | ~120 HB | Ferrite - Pearlite | Structural Backing Support Plate |
The performance of Runxing composite plates is derived from the microstructure of the overlay deposit. During the open-arc or submerged-arc cladding process, high-chromium wire is melted onto a structural carbon-steel backing plate (typically Q235B or Q355B). Rapid cooling forms a hypereutectic microstructure where hexagonal-shaped primary chromium carbides (Cr7C3) are oriented perpendicular to the wear surface. This alignment provides high resistance to abrasive particles sliding across the face of the plate.
Furthermore, because the backing plate retains its ductility, the composite sheet can be formed, rolled, and welded to existing equipment structures without cracking the backing plate itself. Fine, stress-relieving cracks are normal and occur during manufacturing to release thermal stress. These cracks do not penetrate into the backing steel and do not compromise structural integrity under typical load conditions.
Tangshan Runxing Machinery actively participates in international exhibitions and partners with global institutions to validate product performance.
Our website, runxing-machinery.com, supports procurement by offering online catalogs, technical resources, and product selection guides.
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At Electra Mining Africa, we exhibited our high-chromium overlay plates and automated hardfacing wires to international mining houses.
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We work with research institutions, including Tangshan University, on material sciences projects to optimize alloy formulations for industrial wear environments.
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For six consecutive years, we have been an authorized representative for VAUTID welding materials, utilizing European hardfacing technology in high-performance applications.
Read More →We presented our custom-engineered wear solutions for mining operations, including wear liners, chute configurations, and hardfacing alloys, at the EXPOMIN mining exhibition.
Read More →Technical guidance for engineers, plant supervisors, and purchasing managers in the Fiji region.
Our wear plates feature overlay alloys containing 25% to 35% chromium. This high chromium content forms a stable passivation layer that helps resist pitting and galvanic corrosion in high-salinity marine environments like Fiji's ports, preventing premature spalling under mechanical wear.
CCO plates cannot be cut with traditional oxygen-fuel torches due to the high melting point of chromium carbides. We recommend using plasma arc cutting from the carbon steel backing side toward the overlay. For mounting, plates can be bolted via countersunk holes or plug-welded to existing support structures.
These surface fissures are normal stress-relief cracks that occur during the surfacing process as the weld metal cools. They do not penetrate the ductile carbon steel backing and do not compromise the plate's structural integrity or performance.
Yes. We provide complete custom fabrication services based on your CAD drawings. We cut plates using CNC plasma systems, pre-bend them to target radii (overlay inside or outside), and attach studs or cutouts to match your equipment dimensions before shipment.
Our manufacturing facility, Tangshan Runxing Machinery, focuses entirely on production and quality assurance. Our sister trade agency, Hebei Yuwan International Trade Co., Ltd., handles all export logistics, customs clearance, shipping arrangements, documentation, and international payments to streamline deliveries to Fiji.
Typical factory production runs require 10 to 20 days depending on the volume of customization. Ocean transit from Tianjin Port (China) to Fiji's main terminals typically takes 25 to 35 days. We provide tracking updates throughout the shipping process.
Our wear-resistant products are selected by global industrial enterprises and partners to protect equipment operating in demanding wear environments.
A comprehensive range of high-chromium overlay plates, flux-cored hardfacing wires, and customized alloy composites engineered for heavy industrial wear applications.
Our standard bimetallic chromium carbide surfacing wear-resistant composite steel plate designed for heavy-duty bulk handling chutes.
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We provide ODM custom manufacturing of chromium carbide overlay (CCO) wear plates designed to fit specialized chute profiles.
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High-hardness CCO hardfacing overlay plates designed to protect vertical cement mills, aggregate silos, and feed hoppers.
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Custom-fabricated overlay plates engineered specifically for hard rock gold crushing systems and screen liners in Fiji.
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Durable overlay plates formulated for high-sliding friction in raw sugar transport and marine sand dredging applications.
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High-chromium flux-cored wires designed for field repair, rebuilding worn machinery surfaces, and overlay applications.
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OEM hardfacing wires engineered for open-arc welding on heavy equipment, without requiring external shielding gases.
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Bimetallic chromium-carbide composite plates developed to withstand heavy wear and abrasive conditions in industrial applications.
View Details →Contact our engineering team to receive customized layouts, material selection guides, and pricing proposals designed for your specific operating environment.
Runxing machinery
