Explore our leading selection of custom components, automatic cladding devices, and high-performance torches manufactured in China.
Shanghai Duomu has established itself as an authoritative leader in the development, manufacturing, and global export of Plasma Transferred Arc (PTA) cladding systems and laser cladding setups. Backed by over ten years of deep scientific engineering background, we design heavy-duty solutions that safeguard critical industrial parts from friction, corrosion, heat deformation, and structural degradation.
Unlike standard generic manufacturers, Shanghai Duomu is powered by an independent R&D team. This allows us to offer optimized metallurgical bonding, high deposition efficiency, and narrow heat-affected zones (HAZ). We integrate advanced power modules with precise mechanical controls to produce premium machinery suited for both localized small-scale maintenance and large-scale, heavy-duty industrial rebuilding projects.
Explore Our Technical Background ➔Delivering repeatable, high-accuracy surface treatment and structural cladding options across major industries.
Our premium PTA cladding and laser hardening configurations are engineered to function under intense pressure, extreme heat, and harsh corrosive elements.
Providing wear-resistant, long-lasting hardfacing treatments on heavy-duty tillage tools, harvester blades, and cultivator teeth to combat severe abrasive soil contact.
Ensuring ultra-precise micro-arc repairs and performance-enhancing coatings on critical turbine components, specialized defense gear, and structural alloys.
Delivering high-integrity Stellite overlays on ball valves, oil drilling pipe joins, and heavy pumps designed to resist hydrogen sulfide and high-pressure fluid erosion.
Protecting continuous casting rollers, industrial extrusion molds, and high-impact forge hammers from structural thermal fatigue and surface galling.
Modern industrial operations require high-performance surface modifications. Shanghai Duomu has formulated a structured roadmap for precision cladding equipment to assist clients in shifting from manual gas-tungsten operations to intelligent, automated setups:
See how heavy industries minimize unplanned downtime using Duomu's state-of-the-art PTA and laser hardening technology.
"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. Implementing Duomu's automation dramatically cut production cycle times."
"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. Duomu's hardfacing extended our screw lifetimes by 300%."
"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. Duomu equipment gave us total control over our metallurgical layer profiles."
"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 operational safety. This tool is indispensable."
"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. Duomu systems provide the ultimate barrier protection."
Uncompromised component quality, efficient production cycles, and localized technical support combined under one single manufacturer.
Operating from Shanghai's premier industrial corridor, Shanghai Duomu leverages direct partnerships with top raw material and electronics suppliers. Our facilities maintain immediate access to critical parts, ranging from heat-resistant tungsten electrodes and ultra-precise caliber tools to digital control boards. This allows us to supply complete automatic welding workbenches efficiently and cost-effectively.
Each unit undergoes strict compliance evaluations matching international norms. By supervising every phase of development—from custom CAD blueprints to plasma torch calibration—we ensure that all delivered machines integrate smoothly into foreign factory networks.
For inquires about our products, customization options, or pricelists, please leave a message. Our technical support team will touch base with you within 24 hours.
Submit An Inquiry RequestExplore solutions to common issues regarding system choices, powder selections, dilution rate adjustments, and setup operations.
PTA cladding utilizes a highly concentrated plasma arc to melt consumable alloy powder while simultaneously melting a very thin surface layer of the base material. PTA offers much higher energy density, faster deposition rates, lower dilution rates (often below 5%), and a drastically reduced heat-affected zone (HAZ) compared to standard TIG. This ensures minimal distortion and preserves the chemistry of the wear-resistant overlay.
Our systems maintain strict digital control over the main arc current, pilot arc stability, gas flow parameters, and powder feed speed. By balancing the travel rate and energy density, our automatic equipment (such as the DYY-LC501) limits base metal melting. This provides strong metallurgical bonding while keeping dilution below the required threshold to maintain alloy hardness.
Our industrial-grade powder feeders are designed to handle spherical and irregular alloys, including Cobalt-based (Stellite), Nickel-based, Iron-based, and Tungsten Carbide (WC-Co) matrix mixtures. The integrated design prevents powder clogs, ensuring a smooth, steady feed during long production runs.
Yes, all Shanghai Duomu automatic plasma and laser cladding systems feature digital I/O and communication interfaces. They are fully compatible with external PLC controls, CNC gantries, and six-axis articulating robotic arms, making them ideal for high-volume automotive, agricultural, and valve manufacturing lines.
Absolutely. We provide customized setups tailored to specific applications, such as internal bore cladding machines for extruder barrels, deep-hole cladding equipment for oilfield drill tools, and automated tooling for screw brick machines and hydraulic cylinder rods.
Explore our heavy-duty plasma torches, powder feeders, and laser systems designed to deliver continuous service in demanding industrial environments.
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