Explore our premium grade welding machinery, custom torches, and automated robotic systems designed specifically for surface restoration and wear mitigation.
Shanghai Duomu has been a leading manufacturer and exporter of PTA (Plasma Transferred Arc) cladding machines and Laser cladding machines for more than ten years, supported by a strong technical background and extensive field experience.
We specialize in providing integrated precision overlay solutions that resolve critical wear, erosion, and corrosion problems for industrial equipment components. Through continuous innovation, we bridge the gap between material science and engineering practice, offering robust automated systems that deliver high metallurgical bond integrity.
Read More About Our TechOur independent R&D team develops, produces, and sells plasma cladding machine equipment designed for extreme reliability. The welding machines we manufacture offer stable electric arc performance, allowing for highly efficient, long-term continuous operation in heavy industrial settings.
In addition, our state-of-the-art laser cladding equipment effectively supports large-scale industrial remanufacturing projects. By deploying mature technological means, we configure and supply comprehensive production-ready industrial equipment solutions tailored to your unique wear protection goals.
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How international enterprises leverage precision welding technologies to combat asset depreciation and minimize unplanned downtime.
Heavy machinery operating in abrasive environments faces accelerated component degradation. Procurement teams in the Americas, Europe, and Asia look for PTA cladding and laser deposition methods to hardface critical contact points. Treating raw steels with carbide-rich alloys yields up to 400% longer operational cycles.
In sectors like cement fabrication, steelmaking, and oil drilling, a single day of machinery outage can result in massive financial losses. Integrating automated plasma cladding systems allows preventative coating applications, turning reactive maintenance into scheduled predictive restoration.
With rising material costs, solid alloy replacement is economically unviable. Industrial operators rely on precision surfacing to apply high-cost cobalt or nickel-based powders specifically on areas exposed to wear, keeping core components made of cheaper structural alloys.
Our precise cladding, hardening, and repair systems have penetrated major high-wear, high-corrosion, and high-temperature operational areas globally.
Hardfacing soil-engaging tools like plowshares, disk blades, and shredders with tungsten carbide overlays to combat severe abrasive wear.
Executing precision micro-welding and high-density laser cladding to repair gas turbine blades, compressor shafts, and landing gear parts.
Overlaying drill stabilizers, mud pumps, and gate valves with corrosion-resistant alloys capable of enduring chemical attack and sand erosion.
Protecting continuous casting rollers, hot forge dies, and extrusion tooling against extreme thermal fatigue, heavy impacts, and scale wear.
Selecting the optimal wear protection strategy based on mechanical properties, bonding mechanism, and processing efficiency.
| Process Metric | Plasma Transferred Arc (PTA) | Laser Cladding (LMD / DED) | Traditional Arc Welding (GMAW/SMAW) |
|---|---|---|---|
| Bonding Quality | Metallurgical Bond (Excellent strength) | Metallurgical Bond (Extremely pure interface) | Metallurgical (High risk of porosity) |
| Dilution Rate | Medium-Low (5% - 15%) | Very Low (< 5%) | High (20% - 40%) |
| Heat Affected Zone (HAZ) | Moderate (Minimal base metal distortion) | Extremely Small (No structural deformation) | Large (Significant deformation risk) |
| Deposition Speed | High (up to 12 kg/hr) | Medium (1 - 4 kg/hr) | High (Requires excessive slag cleanup) |
| Recommended Powder Alloys | Stellite, Colmonoy, WC-Co Composites | Fine spherical Fe, Ni, Co-based powders | Solid and flux-cored wire alloys only |
We supply highly specialized system architectures designed around your facility's volume and geometry parameters. Our custom portfolio spans across automatic laser cladding setups, robotic PTA systems, and dedicated component-restoration cells.
Stable low-amperage powder coating solution
Compact build with plug-and-play architecture
Supports variable positioning for deep cavity overlays
Expert articles and feedback outlining practical application parameters, dilution rates, and mechanical strategies.
"The PTA Welding Valve Application Guide is not just a process choice for valve manufacturers facing high wear, high corrosion, and high-temperature erosion working conditions, but also a key path to improving product competitiveness. As industries such as petrochemical demand tighter leak prevention, applying PTA overlays guarantees a sound metallurgical boundary."
"In industries such as mining, cement, power generation, steelmaking, chemical processing, and biomass energy, screw conveyors are often regarded as auxiliary equipment. However, maintenance data shows that they are among the most frequent causes of unplanned production delays. Coating flight edges via PTA extends screw service life significantly."
"In Plasma Transferred Arc (PTA) hardfacing, achieving a high-quality overlay is not only about selecting the right alloy powder or optimizing welding parameters. One of the most critical factors that directly affects overlay performance is the dilution rate. Keeping base dilution below 10% ensures the hardfacing layer retains its chemistry and hardness."
"In industries such as Oil & Gas, Mining, Power Generation, Cement, and Heavy Equipment Manufacturing, hardfacing is no longer just a repair process. It has become a critical technology directly related to equipment lifespan, downtime costs, maintenance frequency, and structural reliability. Our plant saw a 3x increase in tooling lifetime."
"In industries such as oil & gas, petrochemical, power generation, mining, and marine engineering, industrial valves are constantly exposed to severe operating conditions including: high pressure, extreme temperatures, corrosive media, and heavy abrasive wear. Automated PTA welding handles these critical variables better than gas tungsten arc."
Quality Control & Standardization Protocol Compliant
Equipment qualified under EN ISO 15614-7 and ASME Section IX requirements.
As a global partner, Shanghai Duomu ensures all manufactured PTA and laser cladding units are built to meet local electrical, safety, and pressure vessel directives.
We supply machinery in compliance with CE (European Conformity), UL (Underwriters Laboratories), and CSA guidelines. Furthermore, our welding procedures and software controllers align with the rigorous standard parameters specified under ISO 3834 for high-quality fusion welding.
To facilitate immediate deployment, we offer remote commissioning support, local distributor service partnerships, and translated HMI interface programs (English, German, Spanish, Russian, and French).
Detailed insights on PTA & Laser Cladding methods, dilution limits, and configuration choices.
For inquiries about our products, wear-resistant options, or a price list, please leave your contact info below. We will get back to you with a comprehensive proposal within 24 hours.
Explore our industrial-grade laser deposition machinery, gantry assemblies, and heat-resistant welding consumables.
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