Engineered for high-precision metallurgical bonding, surface hardening, and severe wear protection.
Years R&D Excellence
Global Export Markets
Controlled Dilution Rate
Heavy-duty Duty Cycle
For more than ten years, Shanghai Duomu has stood at the vanguard of the surface engineering industry as a premier manufacturer and exporter of PTA cladding machines and Laser cladding systems. Backed by a strong technical background and an independent R&D division, we customize advanced thermal overlay systems designed to survive the harshest industrial wear environments.
Our mission goes beyond selling machinery; we supply complete, integrated industrial solutions. From multi-axis robotic kinematics to high-efficiency powder feeders and robust torch designs, our equipment guarantees unmatched metallurgical bonding, low heat input, and high deposition rates.
Understanding the microstructural advantages and efficiency factors of modern PTAW systems
Unlike traditional arc welding, our PTAW systems compress the electric arc through a copper nozzle, concentrating energy. This limits dilution of the substrate material to under 5%, ensuring the protective alloy chemistry (such as Tungsten Carbide or Stellite) remains pure and highly wear-resistant at the first layer.
By employing specialized volumetric, gas-assisted powder feeders, alloy powder is introduced into the plasma gas stream with high accuracy. This precise control results in minimal material waste, uniform deposit width, and highly reproducible metallurgical coatings.
Because the heat-affected zone (HAZ) is tightly localized, rapid cooling forms extremely fine dendritic microstructures. This optimizes wear, abrasion, erosion, and high-temperature oxidation resistance, especially critical for industrial valves and heavy hydraulic rods.
At the heart of our technical department is a dedicated R&D team that focuses on resolving mechanical degradation challenges. The company's product line includes automatic plasma cladding systems, laser hardening robots, and custom double-column gantry welding setups.
By adapting modular PLC control interfaces, operators can store multiple cladding profiles, modifying parameters like pilot arc current, transfer arc current, powder feed rate, and travel velocity in real time. This ensures our systems deliver high repeatability over long shifts in high-throughput production plants.
Deploying advanced PTAW and Laser Cladding systems across core heavy industries globally
Unlocking the manufacturing and component integration advantages of a China-based factory
By producing critical components like PTA torches, powder feeders, and mechanical positioners in-house, we eliminate reliance on third-party suppliers. This integration shortens production lead times and provides full control over machining tolerances.
Our machinery meets international quality standards. We offer structural certifications, CE-compliant electrical layouts, and safety interlocks that align with regional regulations in Europe, the Americas, and Southeast Asia.
We provide extensive technical support, remote cloud diagnosis, and local agent assistance. Whether you need process tuning, custom nozzle adjustments, or electrical troubleshooting, our engineers respond within 24 hours.
Deep-dive analysis of material degradation issues, dilution rates, and industrial hardfacing optimization.
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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, abrasive wear, and sand erosion. Discover how automated PTA cladding delivers flawless, corrosion-resistant sealing surfaces for critical valves.
Read Full Guide →Get professional answers from Duomu's engineering team regarding PTA and laser cladding technology.
High-durability nozzles, custom gas shields, and precision torches designed for heavy industrial use.
Providing specialized process-driven machinery to meet unique customer challenges.
Contact our engineering specialists to discuss your application parameters, substrate metals, deposition requirements, or to request a customized quote. We respond within 24 hours.
Duomu
