Explore our premium range of CNC laser cladding and automated plasma transferred arc (PTA) systems engineered to restore, reinforce, and upgrade heavy industrial components.
As industrial demands escalate globally, surface protection technologies have shifted from basic repair processes to high-tech manufacturing necessities. At Shanghai Duomu, we have established our core authority as a leading manufacturer and exporter of PTA (Plasma Transferred Arc) cladding machines and Laser cladding machines for more than ten years, backed by an elite technical background and robust global integration.
We do not just supply standard welding gear; we design tailored, automated manufacturing stations that operate seamlessly in the harshest environments. Our independent R&D department develops high-deposition, low-dilution surfacing solutions to combat wear, heat, erosion, and chemical corrosion across multiple core industries.
Understanding the metallurgical differences between classic electric arc processes and high-density beam technologies is crucial for maximizing tool life and processing efficiency.
Gas Metal Arc Welding (MIG/MAG) and Gas Tungsten Arc Welding (TIG) are industry benchmarks for structural fabrication. In surfacing applications, TIG offers superb weld puddle control and cleanliness, while MIG/MAG delivers excellent deposition rates. However, traditional arcs produce a wider heat-affected zone (HAZ) and dilution rates ranging from 15% to 30%, which often requires multi-layer deposition to achieve target hardness properties.
PTA is a highly concentrated thermal process utilizing a constrained plasma arc to melt alloy powders or wires onto a substrate. PTA occupies the sweet spot between traditional arc welding and laser deposition, offering incredibly low dilution levels (5% to 10%), high deposition rates (up to 12 kg/hr), and metallurgical bonding superior to thermal spraying. It is ideal for wear-resistant alloys, cobalt-based hardfacing, and tungsten carbide composites.
Using a high-power industrial laser, LMD creates a precise melt pool with minimal heat input, leading to an extremely narrow heat-affected zone and ultra-low dilution rates (under 3%). This precision prevents thermal deformation, rendering laser cladding the process of choice for precision shafts, turbine blades, and high-tolerance industrial valves where post-welding machining must be minimized.
Global procurement teams select China for heavy-duty welding and cladding automation because of our mature ecosystem. Located in Shanghai, the heart of Chinese industrial automation, Shanghai Duomu leverages local raw material supply chains, premium metallurgical alloy powder resources, and robotic control system integration to provide cost-effective yet incredibly high-performing solutions.
By coordinating structural manufacturing, CNC programming, electric control system design, and testing within a unified facility, we maintain absolute quality control over every automated plasma cladding system, hydraulic rod cladding machine, and portal laser deposition gantry. This integration ensures rapid customization, lower logistics hurdles, and superior E-E-A-T rating for mechanical products delivered worldwide.
Our cladding and automated hardfacing machines are actively integrated into major industrial sectors to extend the operational lifetime of critical components.
Review our specialized automated machinery, designed for distinct component shapes, metallurgical requirements, and high-productivity workflows.
An automated solution utilizing a high-efficiency powder feed system. Engineered for heavy surface overlays, providing exceptional control over arc dilution and powder feed metrics to reduce material loss.
A multi-axis versatile platform combining automated rotators, linear slides, and a centralized control system. Suitable for job shops processing diverse geometrical shapes.
High-precision, multi-axis system utilizing advanced fiber lasers to rebuild compressor and turbine blade tips with low thermal distortion and optimal metallurgical bonding.
Specifically engineered for hardfacing industrial ball valves, featuring specialized chucks and synchronized rotation paths for continuous wear-resistant overlays.
Equipped with smart thermal sensors and a high-power diode laser to perform localized surface hardening on gears, dies, and automotive tooling without quenching fluids.
A specialized vertical or horizontal cladding station designed to replace traditional hard chrome plating on hydraulic pistons, significantly improving corrosion resistance.
Read about the practical application of our cladding technologies from engineering reports across high-demand industrial sectors.
"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, chemical, and power generation demand longer equipment lifetimes, switching to PTA cobalt-based hardfacing has extended our critical valve service intervals by 300%."
"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 downtime. Deploying Shanghai Duomu’s automatic plasma powder cladding machines for tungsten carbide hardfacing on screw flights has reduced repair frequencies from twice a year to once every two years."
"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. Shanghai Duomu's machines offer precise control over powder feeding rates and arc dynamics, allowing us to keep dilution under 6% on the first pass."
Working with foreign engineering divisions demands rigorous documentation, international certification, and rapid technical deployment.
Every system exported by Shanghai Duomu is manufactured under a strict ISO 9001 quality system. Our electrical enclosures, wiring paths, and laser systems comply with CE and OSHA parameters to ensure smooth integration into North American and European production floors.
Our automatic control units are equipped with secure remote connection ports. If your team encounters software or parameter optimization challenges, our Shanghai engineers can log in remotely, analyze logs, and adjust parameters to restore operation.
We provide extensive training for mechanical engineers, PLC programmers, and line operators. Complete documentation, detailed setup videos, and commissioning protocols ensure that your operators can operate laser or plasma cladding equipment confidently.
Expert insights into selecting, maintaining, and optimizing your automated cladding and welding setups.
Review our specialized tooling, portable cladding solutions, and multi-axis manipulator workstations designed to extend tool longevity.
Submit your component dimensions, material preferences, and wear issues. Our technical team will supply a customized surfacing proposal within 24 hours.
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