Explore our premium machinery range engineered for extreme accuracy, high deposition rates, and long-term industrial reliability.
Understand the science, engineering parameters, and metallurgical factors that define modern high-efficiency surface engineering.
Plasma Transferred Arc (PTAW) or Equipos de Soldadura de Plasma is an advanced thermal surfacing process that deposits wear and corrosion-resistant layers onto raw metallic substrates. Unlike typical Gas Tungsten Arc Welding (GTAW), the plasma arc is highly constricted through a refined copper nozzle, producing an extremely dense, focused energy column. This column reaches thermal thresholds exceeding 15,000°C.
During operation, metal alloy powder (commonly Cobalt-based Stellite, Nickel-based Colmonoy, or Tungsten Carbide composites) is injected coaxially or laterally into the arc. This creates a highly localized weld pool with the base material. The resulting deposit exhibits a metallurgical bond that is drastically superior to thermal spray technologies.
In surface cladding, the *dilution rate*—the percentage of base metal that melts and blends into the deposited alloy layer—defines the ultimate performance of the coating. High dilution contaminates the deposit, diminishing its wear-resistant properties. PTA cladding reduces this rate to a remarkable 5%–10% in a single pass, compared to 20%–30% in standard arc welding. This allows engineers to achieve the exact metallurgical characteristics required of the alloy without needing multiple overlay passes.
How our localized production ecosystem and heavy R&D investment drive downstream value for global heavy industries.
From manufacturing customized plasma torches (such as deep hole and high-amp torches) to designing automated PLC control cabinets, we keep all R&D processes in-house. This ensures hardware-software integration that standard assemblers cannot replicate.
All systems undergo strenuous continuous-duty testing under actual load prior to shipping. We verify torch insulation resistance, gas control stability, and powder feeding consistency down to ±1% deviation.
Leveraging the robust domestic supply chain of Shanghai, we provide industrial equipment at highly competitive prices. We pass these cost efficiencies directly to our international clients, shortening their capital amortization schedules.
Shanghai Duomu has been a leading manufacturer and exporter of PTA cladding machine and Laser cladding machine for more than ten years with a strong technical background. Our dedication to innovation has established us as a key supplier for Fortune 500 energy firms and heavy machinery manufacturers globally.
With our manufacturing operations based in Shanghai, we coordinate a deep ecosystem of material scientists, control software programmers, and mechanics. This enables us to design, assemble, calibrate, and ship comprehensive surface modification systems worldwide. We ensure that our equipment integrates cleanly into automated manufacturing and repair facilities.
I have an independent R&D team, which develops, produces and sells plasma cladding machine equipment. The welding machine has stable performance and can maintain efficient long-term operation. In addition, the laser cladding equipment sold by the company can effectively support large-scale remanufacturing projects. We have mature technological means to provide complete sets of industrial equipment solutions.
Our controls are built around advanced digital interfaces that synchronize powder feeding rates, plasma arc currents, CNC gantry configurations, and gas flows. This level of control gives system operators complete authority over welding parameters. It minimizes metallurgical defects such as heat-affected zone (HAZ) cracking and micro-porosities.
We can provide customized equipment, automatic laser cladding equipment, automatic plasma cladding equipment, intelligent robot cladding equipment, etc. according to customers' requirements, including special equipment in the industry, such as hydraulic rod cladding machine, pick cladding machine, valve cladding machine, etc.
Engineered specifically for heavy duty corrosion shielding and shaft surface rejuvenation in underground mining environments.
Request InfoAt present, the company's products have penetrated into many fields such as aerospace military industry, nuclear power, petrochemical industry, coal mines, metallurgy and forging, agriculture, water conservancy and electric power, etc.
Expert guides and engineering resources to maximize surface modification productivity and equipment lifespans.
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Clear, direct technical answers regarding PTA cladding parameters, customization, and factory procurement.
Direct from our Shanghai manufacturing facility: high-durability torches, powder feeders, and automatic control systems.
We work closely with global engineering companies, materials labs, and component manufacturers.
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